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Verfahren und Vorrichtung zur Vorkühlung eines Kryostaten

Verfahren zum Betrieb eines Kryostaten mit einem Vakuumbehälter, in welchem eine Kammer mit mindestens einem zu kühlenden Objekt (10; 10') angeordnet ist, wobei an dem Vakuumbehälter mindestens ein hohler Kaltkopfturm (12) vorhanden ist, in den ein Halsrohr (4) ragt, welches die Kammer durch den Außenmantel (8; 8') des Vakuumbehälters hindurch mit dem Bereich außerhalb des Kryostaten verbindet, wobei das Halsrohr (4) geometrisch so ausgestaltet ist, dass ein Kaltkopf (1) eingebracht werden kann, der eine Kaltkopfstufe (7) aufweist, mit der ein kryogenes Arbeitsmedium gekühlt werden kann, welches dabei kondensiert und in einem Kondensationsbetrieb durch eine Heatpipe (5) in eine Verdampferkammer (6) fließt oder tropft, die über eine thermische Kontaktfläche (9; 9') mit dem zu kühlenden Objekt (10; 10') wärmeleitend verbunden ist, sodass das gekühlte kryogene Arbeitsmedium Wärme von dem zu kühlenden Objekt (10; 10') aufnehmen und über die Heatpipe (5) zur Kaltkopfstufe (7) transportieren ...

KUEHLEINRICHTUNG

Vorrichtung zur Kühlung mindestens eines elektrischen Betriebselements in mindestens einem Kryostaten

Vorrichtung zur Kühlung eines elektrischen Betriebselementes, das sich in einem Kryostaten befindet, der mit einem Kältemittel gefüllt ist, und das mit Stromleitungen verbunden ist, die vom Abgas des Kältemittels zu kühlen sind, wobei sich das Kältemittel und das Abgas in einem geschlossenen System befinden und zur Rückkühlung des Abgases eine Kältemaschine vorhanden ist, dadurch gekennzeichnet, dass der Umlauf (20) des Kältemittels (5, LN 2 , GN 2 ) im geschlossenen System (S) allein aufgrund einer Thermosyphonwirkung erfolgt, dass zu einer wärmekontaktierenden Rückkühlung des Abgases (GN 2 ) ein dem geschlossenen System (S) und der Kältemaschine (40) gemeinsamer Wärmetauscher (30) vorgesehen ist, der eine Wärmekontakt-Verbindung (31) zwischen dem geschlossen System (S) und der Kältermaschine (40) aufweist, und dass die Kältemaschine (40) vom geschlossenen System (S) an der Wärmekontakt-Verbindung (31) abtrennbar ist. A device for cooling an electrical operating element, which is located in a cryostat, which is filled with a refrigerant, and which is connected to power lines to be cooled by the exhaust gas of the refrigerant, wherein the refrigerant and the exhaust gas are in a closed system and for recooling the exhaust gas, there is a chiller, characterized the circulation (20) of the refrigerant (5, LN 2 , GN 2 ) in the closed system (S) takes place solely on the basis of a thermosyphon effect, in that a heat exchanger (30) is provided for a heat-contacting recooling of the exhaust gas (GN 2 ) with a closed system (S) and the chiller (40) having a thermal contact connection (31) between the closed system (S) and the refrigerating machine (40), and in that the refrigerating machine (40) can be separated from the closed system (S) at the thermal contact connection (31).

VORRICHTUNG ZUR ENTWÄSSERUNG UND/ODER EINBETTUNG VON PROBEN

CRYOSTAT

Kryostatanordnung mit federndem, wärmeleitendem Verbindungselement

Eine Kryostatanordnung (1) mit einem Außenbehälter (2), in welchem ein Spulentank (3) mit einem zu kühlenden supraleitenden Magnetspulensystem (4) sowie einem ersten kryogenen Fluid (5) und ein Vorratstank (6) mit einem zweiten kryogenen Fluid (7) angeordnet sind, wobei im Betrieb die Temperatur des ersten unter derjenigen des zweiten kryogenen Fluids liegt, wobei der Spulentank mittels mindestens eines ersten Aufhängungselements (8) und der Vorratstank mittels mindestens eines zweiten Aufhängungselements (9) mechanisch starr am Außenbehälter befestigt sind, und wobei der Vorratstank thermisch mit einem Deckelelement (10) verbunden ist, welches thermisch leitend sowie mechanisch starr mit einem Rohrelement (13) und über mindestens ein Koppelelement (11) thermisch leitend sowie mechanisch starr mit dem ersten Aufhängungselement verbunden ist, ist dadurch gekennzeichnet, dass das Deckelelement mechanisch über ein federndes, wärmeleitendes Verbindungselement (12) mit dem Vorratstank verbunden ...

Device for cooling high-temperature superconducting microelectronic components, preferably sensors

The invention relates to the cooling of high-temperature superconducting microelectronic components with the least possible electromagnetic and mechanical stress by the cycles of a Stirling engine. According to the invention, a condenser (2) is arranged on the cooling head (1) of a Stirling engine, a liquid-nitrogen line (3) extends from the condenser (2) to the evaporator (4) on which the components (5) to be cooled are arranged and a gaseous-nitrogen line (6) leads back to the condenser (2) from the evaporator (4). The flow cross-sections of the lines (3 and 6) have capillary sizes and the lines (3 and 6) on the condenser (2) are arranged perpendicularly and turned through 90 DEG so as to lead horizontally into the evaporator (4). ...

Supraleitendes Magnetsystem mit Refrigerator zur Rückverflüssigung von Kryofluid in einer Rohrleitung

Ein supraleitendes Magnetsystem mit einem in einem Kryofluidtank (2) eines Kryostaten (1) angeordneten supraleitenden Magnetspulensystem und einem in einem Vakuumbehälter (8) betriebenen, austauschbaren Refrigerator (5; 31), der zur Rückverflüssigung des durch eine Rohrleitung (4; 21) strömenden Kroyfluids vorgesehen ist, ist dadurch gekennzeichnet, dass die Rohrleitung (4; 21) fest im Kryostaten (1) eingebaut ist. Der Refrigerator erreicht beim Betrieb im Vakuum seine optimale Leistung und kann im Falle eines Defekts problemlos ausgetauscht werden.

Radiation detector in cryostatic housing

A semiconductor radiation detector, e.g. of lithium compensated germanium or silicon, is fixed in an air-tight housing contg. a vacuum in contact with the cryostatic cold source. To maintain the vacuum, a flexible piece part, e.g. with a bellows section, is used which is mechanically and thermally insulated from the housing as a part of the feedthrough system for the terminating lead.

Cryostat

Cryostat

Improvements in or relating to evaporator equipment

... 971,102. Refrigerating. MAX-PLANCKGESELLSCHAFT ZUR FORDERUNG DER WISSENSCHAFTEN e.V. March 1, 1962 [March 1, 1961], No. 8083/62. Heading F4H. Liquefied gas, e.g. liquid helium, is supplied through a pipe 6 to a hollow evaporator body 13 connected to a pump 23 by a suction line 10, 18, 21 and 20, a throttle valve 16 controlled by the temperature of the evaporator being included in the suction line. Part 10 of the suction line is coiled around the evaporator to act as a radiation shield and the evaporator assembly is located in an evacuated chamber 2 which is mounted on the neck 8 of the liquid helium storage vessel. The throttle valve 16 (Fig. 3, not shown) is of the bellows type and is connected to a temperature sensing element on the evaporator by a flexible pipe 15 which may also be connected to a thermometer; the valve is also manually adjustable. The pipes 6 and 18 are provided with evacuated jackets. A vacuum gauge 22 is provided in the suction line and gaseous helium is supplied from ...

Control of egress of gas from a cryogen vessel

Refrigerator de-coupling device

CRYOSTAT

... 1,273,868. Cryostat. COMPAGNIE GENERALE D'ELECTRICITE. 24 Sept., 1970 [30 Sept., 1969], No. 45664/70. Heading F4H. A cryostat 1 contains a load circuit 3 which is fed by an external current source 2, the load circuit 3 comprising a superconductive winding 4, which may be an electromagnet, across which is connected a superconductive switch 5. Current is supplied to each side of the load circuit 3 by two superconductive lower parts 16 and 17 which are in thermal contact with two tubular members 10 and 11. Before supplying current to the load circuit 3, cryogenic liquid is forced up the tubular members 10 and 11, bringing the parts 16 and 17 into a superconductive state.

Warm bore cylinder assembly

Thermally disconnecting a Cryogenic vessel from a refrigerator

cryogenic probehead cooler in a nuclear magnetic resonance apparatus

Thermal insulation

... 1,072,806. Laminates. COMPAGNIE GENERALE D'ELECTRICITE. Aug. 27, 1964 [Sept. 18, 1963; July 29, 1964], No. 35250/64. Heading B5N. [Also in Division F2] Thermal insulating material, suitable for use in an exhausted space between walls to be thermally insulated from one another, comprises superposed sheets of plastics material, e.g. polyethylene terephthalate, metallized in vacuo on one or both surfaces, e.g. with aluminium, the sheets having a relief so that adjacent sheets make point contact with each other. The relief may be achieved by roughening or corrugating the sheets, or by rolling to form upstanding pyramids or cones, the apices of the latter optional being perforated. Alternatively, separate elements, e.g. cups, cones or cylinders, made from the same metallized plastics material may be bonded to the surfaces of the sheets. Stacks of the sheets may be enclosed in welded metallized plastic bags, a series of such bags being used to fill the said space.

Cryogenic transfer line coupling assembly

A cryogenic transfer line coupling 110 for a cryostat 101 comprising a first portion of a bayonet or Johnston coupling 124, and a gate valve 126 communicatively coupled to the first portion of the first portion of the bayonet coupling, operative to seal an opening (164, figure 6) through the gate valve and prevent the ingress of air.

Improvements in refrigeration apparatus

... 1,084,736. Refrigerating; thermal regenerators. PETROCARBON DEVELOPMENTS Ltd. April 8, 1964 [April 10, 1963], No. 14351/63. Headings F4H and F4K. A method of producing refrigeration comprises passing gas under pressure through a regenerator 12 and into a tube 10 having a closed end 11, cooling the closed end of the tube and exhausting the gas from the tube via the regenerator to produce refrigeration adjacent the open end of the tulbe. The regenerator 12 communicates via a pipe 20 with a line 21 connected at one end to the outlet 22 and at the other end with the inlet 23 of a compressor 24. Line 21 also includes an after-cooler 25, gasreservoirs 31 and 32, and valves 26 and 28. Initially valve 26 is opened for 0À24 seconds while valve 28 is closed to admit gas to the tube, the closed end of which is cooled by water flowing through a tube 13. After 0À045 seconds from the closure of valve 26 valve 28 is opened while valve 26 remains closed to exhaust the gas from the tube. In flowing out ...

Cryogenic cooling apparatus and system

Superconducting magnet with composite thermal shield of pryrolitic material

A superconducting magnet 12, for a magnetic resonance imaging system, is surrounded by shielding system 10 comprising a helium vessel 14, a low temperature thermal shield 16, a high temperature thermal shield 18 and a vacuum vessel 20. Each thermal shield 16, 18 is a composite having an annular shape and comprises a material such as pryrolitic thermal graphite (TPG) or pryrolitic boron nitride (PBN) having a thermal conductivity greater than about 1000W/m.K at about 70K. The material has an electrical resitivity in a range of about 3x10<-6> L m to about 3x10<-3> L m and a density less than about 2.4 g/cm<3>. The composite thermal shields 16, 18 are formed from first, second, third and fourth sidewalls (42-48, fig 2) which are joined by mechanical joints that include a high thermal conductive epoxy. First and second sidewalls (42, 44) each comprise a first and second sub-member (50) connected by a support ring (58). Coldhead sleeves 24 and penetration 28 each have thermal links 26 which ...

Liquified gas cryostat

A liquified gas cryostat has an inner wall (3) to contain the liquified gas (4) and an outer wall (2) spaced therefrom. The space between the walls is evacuated and includes a metallized multi-layer insulation (5) formed of a woven fabric coated with a metallic layer to create discrete, self defined areas of metallisation. The fabric may be of polyester. The metallic is chosen from gold or aluminium. The matallic layer may be coated on both sides of the woven fabric so long as there are discontinuities, but the layer is preferably coated on one side only of the woven material.

Liquified gas cryostat

Cryogen pressure vessel assembly for superconducting magnets

A cryogen pressure vessel assembly (100) for a superconducting magnet comprises an inner former (102), an outer former (104), and an outer shell (106). The inner former has a plurality of superconducting magnet coils (44) wound thereon, and the outer former has a plurality of bucking coils (58) wound thereon. The inner former, the outer former, and the outer shell form a fluid boundary for a cryogen. In one aspect, a pressure face (158, Fig 4) is formed on at least one of the coil formers, and a radial slot (156) for receiving wires entering and exiting a coil is disposed in the pressure face. A plurality of wire clamps (206, Fig 4) are positioned in the radial slot, with each wire clamp in the plurality of wire clamps including: a front face (214, Fig 5) extending coplanar with the pressure face, a rear face (216, Fig 5) opposite the front face, the rear face contacting a back surface of the radial slot, and a recess (220, Fig 5) formed in the rear face, the recess forming a channel for ...

Electrically conductive shield for refrigerator

Cooling apparatus comprising a solid coolant

A cooling apparatus 2 for a superconductor system comprises a casing, a heat exchanger 5, a solid coolant 4, and a connector 10 to couple the heat exchanger to the superconductor system. Preferably, the coolant comprises solid nitrogen or water ice. The heat exchanger may be constructed from a plurality of tubes of high thermal conductivity embedded in the solid coolant. Preferably, the heat exchanger is provided with an impeller 11 for pumping a heat exchange medium through the tubes. Alternatively, a convection flow may be set up to transport the heat exchange medium through the tubes. The heat exchange medium may be in the form of a liquid or gaseous cryogen, such as hydrogen or helium. Furthermore, a store may be provided for storing a quantity of the heat exchange medium. Preferably, the system is a high temperature superconductor system comprising one of a cryostat 1, an electric generator, or an electric motor. The cryostat may have a pre-cool loop 8, coupled together with the heat ...

MAGNETIC FIELD GENERATING SYSTEM

Load bearing means in cryostat systems

In cryostat systems, the different vessels contained within each other for housing eg a superconducting magnet, or the cryogenic liquid storage tanks are generally either suspended or supported by each other. The support or suspension systems also fix the internal clearances between radiation shields. The various constraints put onto these support or suspension systems result in an increased input of heat into the cryostat system. A load-bearing support or suspension system which combines two functions, namely supporting or suspending and cooling, comprises at least one pulse tube cooler. The pulse tubes (22-38) may be arranged in series or in parallel, may be single or multi-staged or feature an additional liquefying stage. The pulse tube acts as the suspension or support member, as well as simultaneously cooling any radiation shields connected to it, and at the same time be able to carry magnet loads.

Apparatus for maintaining a system at a cryogenic temperature over an extended period of time without active refrigeration

A cryogenic thermal battery arrangement for maintaining a superconducting magnet coil (12) or similar apparatus at a cryogenic temperature for a required shipping period, such as thirty days, without consuming a significant amount of a costly working cryogen, comprises using a second cryogen from a second cryogen tank (22) positioned preferably around a former (10) mounting the superconducting coils (12). The superconducting magnet coil (12) is housed in a cryogen vessel (14) having an outer vacuum chamber (16) and a thermal shield (18). The system is transported filled with the working cryogen eg liquid helium. A service neck (20) provides an escape path for the working cryogen as it boils off to leave the vessel (14) and vent to atmosphere. The second cryogen provided in the tank (22) is usually nitrogen and is preferably solid at the temperature of operation of the system. During transport however, the working cryogen may boil dry. Once the system has heated up to a certain, still cryogenic ...

Reduction of cryogen loss during transportation of cryostats

In order to minimise the loss of cryogen (5a, Fig.1) during the transportation of a superconductive magnet system, or indeed at any time that a two-stage cryogenic refrigerator 1 used to cool the superconductive magnet system is turned off, part of the boil-off gas from the cryogen is directed from the cryogen vessel 5 through a tube 4 to cool the two-stage refrigerator directly. Some of the heat conducted along the refrigerator into the system is thereby intercepted and removed by that part of the boil-off gas. This part of the boil-off gas is then vented from the system, passing through a pipe 6 to the cryogen vessel access neck (7, Fig.1). Pipe 6 is preferably fitted with a valve 12 which is open during transportation but may be closed during normal operation of the magnet system when the refrigerator is operational. Flow of gas past the refrigerator may be regulated by means 13 in the pipe 6, for example a suitably sized orifice. The first stage 9 of the refrigerator cools a thermal ...

Method of cooling a cryostat by using an external liquid nitrogen supply during transit

A method for cooling a cryostat configuration 1 during transport, wherein the cryostat configuration 1 comprises a superconducting magnet coil 2 in a helium tank 8 containing liquid helium 9, which is surrounded by at least one radiation shield 10, wherein the cooling inside the cryostat configuration 1 in stationary operation is performed entirely without liquid nitrogen by means of a refrigerator, characterized in that during transport, the refrigerator is switched off and instead, liquid nitrogen 6 is conducted from an external nitrogen vessel 4 via a supply tube 7 from the nitrogen vessel 4 to the cryostat configuration 1 and brought into thermal contact with the radiation shield 10 by means of a thermal contact element 11 in the cryostat configuration 1. In this way, the consumption of liquid helium during transport can be greatly reduced and the possible transport time of a charged superconducting magnet configuration increased.

cryogenic probehead cooler in a nuclear magnetic resonance apparatus

Improved thermal contact between cryogenic refrigerators and cooled components

An arrangement for mounting a two stage cryogenic refrigerator (17) into a cryostat, the arrangement comprising a vacuum sock (15) for accommodating at least a part of the refrigerator, attachment means (32, 34) for attaching an upper part of the refrigerator to a surface (14) of the cryostat around an opening of the vacuum sock, a thermally conductive portion (26) of a wall of the vacuum sock which, in use, is thermally and mechanically in contact with a second cooling stage (24) of the refrigerator, and arrangements (40, 42) are provided for thermally connecting a first stage (22) of the refrigerator to a thermal radiation shield (16) of the cryostat. The said arrangements comprise a bellows structure (40) which is in a retracted position when the vacuum sock is at atmospheric pressure, and which is in an extended position when the sock is under vacuum, wherein in its extended position, the bellows presses a thermally conductive contact piece (42) into thermal and mechanical contact with ...

Refrigerator de-coupling device

A coupler for thermally coupling and decoupling a cryogenic refrigerator 17 to and from cooled equipment 12 comprises a first and second intercept 24, 26 in thermal contact with the equipment to be cooled. A moveable flange 28 having a spring biasing means 44 is urged in a direction whereby each intercept is not in contact with the equipment to be cooled. At least one actuator 46 when active urges the flange with a force greater than the biasing means whereby each intercept contacts the equipment to be cooled. The refrigerator may be a two-stage refrigerator whereby each intercept comprises a first 30 and second 32 cooling stage mounted within an evacuated closed sock 22. The sock may be omitted (figs 4 6). The first stage may cool to a first temperature of 50K to 100K and second stage may cool to 4K. The biasing means may comprise a stainless steel bellows or a piston arrangement and seals the flange with a port of the outer vacuum container (OVC) 14. Resilient thermal link(s) 36 may provide ...

Crystat for reduced cryogen consumption

Magnetic resonance imaging system with thermal reservoir and method for cooling

Production of solidified cooled bodies

Apparatus for producing hydrogen pellets for introduction into a plasma-physical equipment, fusion reactor or the like, comprises an extrusion cryostat T1 and a supply cryostat T2, the temperatures of which can be adjusted independently of each other. The solidified material is extruded from the extrusion cryostat T1 into the supply cryostat T2 at a relatively high temperature appropriate for extrusion, and the material is cooled in the supply cryostat to a lower temperature which is suitable for the ejection operation and which ensures high strength. The apparatus advantageously comprises a double ram 14 which is used as a whole for the extrusion and which incorporates a coaxially guided ejection ram of smaller diameter, by means of which the extruded material can be ejected from the supply cryostat at the required speed. The extruded material is prevented from freezing solid in the supply duct 76 of the supply cryostat T2 by a heating means which has a short time constant and by means ...

Improvements in or relating to devices for maintaining objects at a low temperature

... 1,129,245. Heat insulated containers; refrigerators. PHILIPS' GLOEILAMPENFABRIEKEN N.V. 19 July, 1966 [22 July, 1965], No. 32398/66. Headings F4H and F4U. Objects 4, e.g. electronic circuitry, are cooled by immersion in liquefied gas in a plurality of containers 7 located at different levels within a vacuum jacket 1. The containers are mounted on a hollow shaft which is divided by partitions 8 into a plurality of spaces each having apertures 9, 10 to enable liquid from one container to overflow to the container beneath. In a modification (Fig. 2, not shown) the containers are mounted on one wall of the jacket and are of progressively increasing horizontal extent towards the bottom of the jacket.

Cryostat

... 1,132,416. Refrigerating. SIEMENS A.G. 22 March, 1967 [22 March, 1966], No. 13563/67. Heading F4H. A cryostat comprises a container 1 for a liquid coolant, e.g. helium, and a displacement body 15 above the coolant, the body 15 being formed so as to guide rising coolant vapour in heat exchange with the container wall. As shown, helical grooves 16 are formed in the surface of body 15 which comprises a plurality of superimposed sections separated by layers 26 of chromium or gold plated copper sheet, and is made of foamed plastics material. Grooves 16 communicate via bores and channels 18- 21 with an outlet 22 and a further bore 23 having a normally closed relief valve 24 is provided in body 15. The object to be cooled, e.g. a superconducting coil 11, is introduced through a tube 17, its electrical leads being led through grooves 16; the leads may be finned. The cryostat may alternatively be formed as an annulus (Figs. 3 and 4, not shown) having its axis horizontal or vertical; the space surrounded ...

APPARATUS FOR THE CONTINUOUS COOLING OF OBJECTS TO TEMPERATURES BELOW 2.18K

... 1310766 Refrigerating MAX-PLANCKGES ZUR FORDERUNG DER WISSENSCHAFTEN EV 23 March 1970 [12 April 1969] 14047/70 Heading F4H A cryostat for continuous cooling of objects to temperatures below 2À18‹ K. comprises a receptacle 2 for a liquid helium bath 3 which is surrounded by a vacuum chamber 12 and which has a base constituted by an evaporator element 1 of porous material of pore size less than 10-4 cm. end of such length that, in operation, the liquid helium is completely evaporated on issue from the lower end 6 into the vacuum. The object is retained in a holder 19 of thermally conductive material either secured to the element 1 or to the container 8 of the vacuum chamber. The portion of the receptacle adjacent the element forms a heat exchanger 4 having apertured fins 5 over which the gaseous helium flows to an exhaust gas pipe 13 leading to a vacuum pipe, an adjustable pressure regulator 14 maintaining the pressure inside the chamber 12 at a level corresponding to the desired ...

Automatic thermal decoupling of a cold head

Cryostat arrangements and mounting arrangements for cryostats

An arrangement for mounting the coldhead 21 of a cryocooler 2 in a cryostat 1 for allowing the extraction of heat from the interior of the cryostat by the cryocooler. The mounting arrangement comprises a coldhead interface portion (22a, 22b, figure 2) for mounting on the coldhead 21 and a sock portion (3, figure 3) for mounting in the cryostat, arranged for receiving the coldhead, comprising a receiving interface portion (32a, 32b, figure 4) for receiving the coldhead interface portion. The coldhead interface portion comprises a plurality of flexible finger portions (23a, 23b, figure 2) and the receiving interface portion comprises a bearing surface (322a, figure 5a, 322b, figure 5b) against which the finger portions rest. The mounting arrangement further comprises a clamping ring (4a, 4b, figure 2) for releasably clamping the finger portions against the bearing surface. The clamping ring may be held in a recess (321a, figure 5a, 321b, figure 5b) on the fingers. An outer interface portion ...

Superconducting magnet apparatus

CRYOSTATIC DEVICE

... 1456352 Cryostats COMMISSARIAT A L'ENERGIE ATOMIQUE 9 April 1975 [22 April 1974] 14542/75 Headings F4H and F4U [Also in Division G2] A cryostatic device for use in low-temperature spectrometry comprises a double-walled opentopped vessel 2 containing a cryogenic liquid bath 38, a mirror M which supports a sample 6 and is immersed in the said liquid, and a housing E which surrounds the vessel 2 and includes at at least one open aperture 10 located below the level of the open top of the vessel 2. The sample and a mirror M are supported by a suspension carriage 8. Reflecting surfaces 12, 14, 16, 18, 20, 22 are provided in the housing for use in infra-red spectrometry experiments. The housing also includes a heat reflecting lining 26 and is provided with a port 28 having a glove 32, a port 30 fitted with a manipulating device 34, and a transparent viewing port 36. A liquefied gas inlet pipe 40, Fig. 2 is integral with the double-walls of the vessel. A calibrated leak valve 50 is provided beneath ...

Cryostats for detectors of the photons.

VORRICHTUNG ZUR ENTWÄSSERUNG UND/ODER EINBETTUNG VON PROBEN

SYSTEM WITH A SUPERCONDUCTIVE CABLE

CRYOSTAT FOR EXAMINING SAMPLES IN A VACUUM

CRYOSTAT WITH STABILIZED OUTER CONTAINER

VORRICHTUNG ZUR ENTWÄSSERUNG UND/ODER EINBETTUNG VON PROBEN

CHAMBER FOR FREEZING DRYING PROCESS THROUGH KRYOSORPTION

Vorrichtung und Verfahren zum Isolieren eines kälteerzeugenden Behälters

Systems and methods for insulating superconducting magnets, such as a cryogen vessel of a magnetic resonance imaging (MRI) system having therein one or more superconducting magnets are provided. One system includes a thermal insulator having a first plurality of reflector layers and a non-deformed spacer layer between adjacent layers in the first plurality of reflector layers. The thermal insulator further includes a second plurality of reflector layers and a deformed spacer layer between adjacent layers in the second plurality of reflector layers.

Vorrichtung und Verfahren zum Isolieren eines kälteerzeugenden Behälters

Systems and methods for insulating superconducting magnets, such as a cryogen vessel of a magnetic resonance imaging (MRI) system having therein one or more superconducting magnets are provided. One system includes a thermal insulator having a first plurality of reflector layers and a non-deformed spacer layer between adjacent layers in the first plurality of reflector layers. The thermal insulator further includes a second plurality of reflector layers and a deformed spacer layer between adjacent layers in the second plurality of reflector layers.

SPEICHERBEHÄLTER FÜR KRYOGENEN TREIBSTOFF

The invention relates to a storage container for a cryogenic propellant, especially hydrogen, having a double-walled construction comprising an interior and an exterior container (2, 3) and having a vacuum insulation and a multilayer insulation (4a) in the space between said interior and exterior containers (2, 3). Furthermore, a refrigeration line (9), through which a refrigerant can flow and which is in contact with the multilayer insulation (4a) and with a thermal shield (4b) set at a distance from the multilayer insulation (4a) and forms part of a refrigerant circuit is also present in the space between interior and exterior containers (2, 3).

CRYOSTAT FOR A PHOTON DETECTOR AND ITS USE IN A MEASURING INSTRUMENT FOR BOREHOLES.

MODULAR PHOTONENDETEKTOR CRYOSTAT, ASSEMBLY AND SYSTEM.

Cryostat with a vacuum chamber coolable from the liquid gas cooling reservoir of a Dewar vessel over a cooling transport device

MEMORY CONTAINER FOR CRYOGENIC FUEL

Liquefying and storing a gas

CRYOSTAT AND CRYOGENICALLY COOLED COMPUTER SYSTEM

SUPPORT FOR CRYOSTAT PENETRATION TUBE

CRYOSTAT WITH STABILIZED OUTER VESSEL

The invention relates to a cryostat (110) for use in a biomagnetic measuring system. The cryostat (110) comprises at least one interior vessel (112) and at least one exterior vessel (114) and at least one hollow space (126) disposed between the interior vessel (112) and the exterior vessel (114). Negative pressure can be applied to the hollow space (126). The exterior vessel (114) has a base part (130). The base part (130) has a thickness variation region (166) having a concentrically varying base thickness, wherein the base thickness assumes a lower value toward the center of the base part (130), than in an exterior region.

BOREHOLE LOGGING TOOL CRYOSTAT

BOREHOLE LOGGING TOOL CRYOSTAT

PORTABLE CRYOGENIC CONTAINER

The invention relates to a portable personal cryogenic container for carrying materials at low temperatures, and more particularly for carrying cryogenically preserved materials. The cryogenic container can be formed from an external shell assembly having multiple parts, where the parts are interlocked to support an inner container. An elongate receptacle holding preserved materials may be supported in the inner container alongside cryogenic fluids for maintaining cryopreserved materials.

Dispositif cryogénique d'irradiation à basse température d'un échantillon de matière

Dispositif cryogénique d'irradiation à basse température d'un échantillon de matière

Verfahren zur Herstellung von Fasern durch Schlitzen einess Bandes aus thermoplastischem Material und Vorrichtung zur Durchführung des Verfahrens

Procédé cryogénique d'irradiation à basse température d'un échantillon de matière et dispositif pour sa mise en oeuvre

Dispositif d'isolation thermique

Behälterkombination

Kältetransporteinrichtung

Einrichtung zum Kühlen eines Gegenstandes mit einer Kaltgaskühlmaschine

Appareil porte-échantillon pour mesures optiques à basse température

Kryostat mit einer Vakuumkammer zur Aufnahme eines zu kühlenden Strahlungsdetektors

Dispositif cryogénique d'irradiation à basse température d'un échantillon de matière

Vorrichtung zur kontinuierlichen Tiefkühlung von Objekten

Vorrichtung zur kontinuierlichen Tiefkühlung von Objekten auf Temperaturen von 2,17 Grad K in einem Helium-II-Bad

Kühlvorrichtung zur Kühlung eines Bauteiles

Vorrichtung zur Kühlung von Supraleitungsspulen und Verfahren zum Betrieb der Vorrichtung

Dispositif d'isolation thermique

Cryostat comprenant un dispositif d'alimentation en courant d'un circuit électrique baigné par un liquide cryogénique

RECIPIENT CRYOSTATIQUE.

Kryostat zur Kühlung von Kryospulen, insbesondere von Supraleitungsmagnetspulen, mit horizontal liegendem, von aussen zugänglichem, etwa rohrförmigem Innenraum

Dispositif d'isolation thermique

Abzweigstück, insbesondere Kreuzstück für erdverlegte Rohrleitungen

Vorrichtung zum Kühlen und Aufrechterhalten einer niedrigen Temperatur von Formteilen mittels einer tiefsiedenden Kühlflüssigkeit

Kryostat

Kryostat mit einem tiefsiedenden flüssigen Kühlmittel, insbesondere zur Kühlung von Supraleitungsspulen

Kältetransportvorrichtung

Vorrichtung zur kontinuierlichen Tiefkühlung von Objekten in einem Flüssigkeitsbad

Dispositif de réfrigération d'un objet

Procédé de mise en circulation d'un liquide cryogénique à l'intérieur d'un corps immergé dans ce liquide

CRYOSTAT FUER A SUPERCONDUCTING NUCLEAR RESONANCE SPECTROMETER.

Cooling a cryo- sample head in a nuclear magnetic resonance-apparatus.

Eine erfindungsgemässe NMR (= Kernspinresonanz)-Apparatur umfasst ein Magnetsystem, das in einem Kryostaten (1) angeordnet ist, der mindestens einen Stickstofftank (3b) zur Aufnahme von flüssigem Stickstoff (5b) und eine Raumtemperaturbohrung (7) zur Aufnahme eines NMR-Probenkopfes mit einem Sende- und Empfangssystem (9) aufweist, welcher in Teilen oder als Gesamtheit durch Zufuhr von flüssigem Stickstoff (5b) über eine Versorgungsleitung (14) auf kryogene Temperaturen abgekühlt werden kann. Der Stickstofftank (3b) des Kryostaten (1) ist mittels der Versorgungsleitung (14) derart mit dem NMR-Probenkopf (8) verbunden, dass flüssiger Stickstoff (5b) aus dem Stickstofftank (3b) des Kryostaten (1) entnommen und zum NMR-Probenkopf geführt werden kann. Damit wird die Apparatur insgesamt kompakter und beansprucht weniger Platz, der Bedienungskomfort der Apparatur wird erhöht, und die Anschaffungs-, Betriebs- und Wartungskosten werden gegenüber bisherigen vergleichbaren Einrichtungen deutlich gesenkt ...

Cryostat configuration

A cryostat configuration with a vacuum vessel ( 1 ) and a cryogen vessel ( 2 ) built into it, and a sleeve ( 8 ), into which a cryocooler ( 7 ) is built, wherein the upper, warm end of the sleeve is connected to the outer jacket and the lower, cold end facing the cryogen vessel is hermetically sealed by a sleeve base ( 9 ) is characterized in that the cryogen vessel is hermetically sealed except for a gas capillary ( 13 ) and filled with gaseous fluid ( 12 ) at a pressure below the vapor pressure of the liquid phase of the fluid at the corresponding operating temperature and the coldest stage of the cryocooler is connected to the heat exchanger ( 11 ) disposed inside the cryogen vessel in a manner that ensures good thermal conduction.

End flange for a magnetic resonance imaging system and method of manufacturing

An end flange for a magnetic resonance imaging (MRI) system and method for manufacturing an end flange are provided. One end flange is for a vacuum vessel of the MRI system. The vacuum vessel includes a housing configured to receive therein a magnet assembly and an end flange forming an end of the housing. The flange includes an outer surface, an inner surface, and a core coupled between the outer and inner surfaces, wherein the core has a greater stiffness than the outer surface and the inner surface.

CRYOSTAT WITH ACTIVE NECK TUBE COOLING BY A SECOND CRYOGEN

A cryostat arrangement has an outer jacket, a first tank with a first cryogen, and a second tank with a second liquid cryogen which boils at a higher temperature than the first cryogen. The first tank comprises a neck tube, whose hot upper end is connected to the outer jacket at ambient temperature and whose cold lower end is connected to the first tank at a cryogenic temperature. The arrangement uses a riser pipe protruding into the second tank through which the second liquid cryogen can flow out of the second tank and into a first heat exchanger in thermal contact with the neck tube. An outflow line is provided through which second cryogen evaporating from the first heat exchanger can flow out and into an optional second heat exchanger. It is thus possible to greatly reduce heat input from the neck tube into the first tank. 1. A cryostat arrangement for storage of a first cryogen having an outer jacket and a first tank installed therein with the first cryogen as well as a second tank having a second liquid cryogen , wherein the first cryogen boils at a lower temperature than the second cryogen and wherein the first tank comprises a neck tube whose hot upper end is connected to the outer jacket at ambient temperature and whose cold lower end is connected to the first tank at cryogenic temperature , the arrangement comprising:a riser pipe protruding into the second tank through which the second liquid cryogen can flow out of the second tank, a lower end of the riser pipe being located in the second liquid cryogen in the second tank, anda first heat exchanger into which the riser pipe opens directly or indirectly with its upper end, the first heat exchanger having an outflow line through which evaporating second cryogen from the first heat exchanger can flow out, and being in thermal contact with the neck tube so as to provide local cooling via the second cryogen from the riser pipe.2. The cryostat arrangement according to claim 1 , wherein the level of the second ...

SYSTEMS AND METHOD FOR A DYNAMIC SEAL ASSEMBLY FOR A FLUID DELIVERY SYSTEM

Methods and systems are provided for a sealing system for a dynamic nuclear polarization (DNP) system. In one embodiment, a system comprises: a reservoir including an inlet opening; an outer tube; and a tapered seal shaped to seal against the inlet opening and the outer tube, the tapered seal including: a first section removably coupleable to a second section; and a through-hole formed by a first plurality of inner surfaces of both the first section and the second section, the through-hole shaped to encircle the outer tube. In this way, the tapered seal may be coupled around the fluid passage without inserting a tip of the fluid passage through the through-hole of the tapered seal, and a sterility of the system may be maintained. 1. A system , comprising:a reservoir including an inlet opening;an outer tube; and a first section removably coupleable to a second section; and', 'a through-hole formed by a first plurality of inner surfaces of both the first section and the second section, the through-hole shaped to encircle the outer tube., 'a tapered seal shaped to seal against the inlet opening and the outer tube, the tapered seal including2. The system of claim 1 , wherein the reservoir is a liquid helium storage reservoir.3. The system of claim 1 , wherein the first section and second section each include a second plurality of inner surfaces positioned adjacent to the first plurality of inner surfaces claim 1 , wherein the first section includes a first opening extending through the first section from an outer surface of the first section to the second plurality of inner surfaces of the first section claim 1 , the first opening positioned to align with a second opening formed by the second plurality of inner surfaces of the second section claim 1 , and wherein the first opening and the second opening together form a passage shaped to receive a fastener.4. The system of claim 1 , wherein the first section includes a first plurality of radial biasing members and the ...

SYSTEMS AND METHOD FOR A DYNAMIC SEAL ASSEMBLY FOR A FLUID DELIVERY SYSTEM

Methods and systems are provided for a sealing system for a dynamic nuclear polarization (DNP) system. In one embodiment, a system comprises: a reservoir including an inlet opening; an outer tube; and a tapered seal shaped to seal against the inlet opening and the outer tube, the tapered seal including: a first section removably coupleable to a second section; a through-hole formed by a first plurality of inner surfaces of both the first section and the second section, the through-hole shaped to encircle the outer tube; and a vacuum channel extending through, from an outer surface to an inner surface of the first plurality of inner surfaces, one of the first section and second section. In this way, the tapered seal may be coupled around the fluid passage without inserting a tip of the fluid passage through the through-hole of the tapered seal, thereby maintaining a sterility of the system. 1. A system , comprising:a reservoir including an inlet opening;an outer tube; and a first section removably coupleable to a second section;', 'a through-hole formed by a first plurality of inner surfaces of both the first section and the second section, the through-hole shaped to encircle the outer tube; and', 'a vacuum channel extending through, from an outer surface to an inner surface of the first plurality of inner surfaces, one of the first section and second section., 'a tapered seal shaped to seal against the inlet opening and the outer tube, the tapered seal including2. The system of claim 1 , further comprising a vacuum source adapted to be coupled to the vacuum channel at the outer surface of the one of the first section and second section.3. The system of claim 1 , wherein each surface of the first plurality of inner surfaces of both of the first section and second section is positioned at an angle relative to each adjacent surface of the first plurality of inner surfaces along a length of the through-hole.4. The system of claim 3 , wherein each surface of the first ...

A pressure limiting valve for a cryostat containing a cryogen and a superconducting magnet

An abstract for a quench valve of a cryostat, in particular for use in a magnetic resonance imaging system, is attachable to the quench valve so as to raise the cracking pressure of the quench valve without changing the operability of the quench valve. Such an accessory device is usable to enable the cryostat, containing a cryogen, to be safely transported by air transportation.

SUPERCONDUCTING MAGNET ARRANGEMENT FOR MAGNETIC RESONANCE IMAGING SCANNER

A superconducting magnetic arrangement includes a magnetic coil unit. The magnetic coil unit includes a number of superconducting magnetic coils and a cryostat with an insulating vessel for cooling the magnetic coil unit. The magnetic coil unit is arranged in a vacuum in the insulating vessel. The magnetic coil unit is held in the interior of the insulating vessel by a maximum of six longitudinal bearing elements that each extend between the magnetic coil unit and the insulating vessel such that a rotary movement and a translatory movement of the magnetic coil unit relative to the insulating vessel is restrained by the bearing elements. 1. A superconducting magnetic arrangement comprising:a magnetic coil unit comprising superconducting magnetic coil; andan insulating vessel, wherein the magnetic coil unit is arranged in the insulating vessel,wherein the magnetic coil unit is held in an interior of the insulating vessel by a maximum of six longitudinal bearing elements, each of the longitudinal bearing elements being between the magnetic coil unit and the insulating vessel such that a rotary movement and a translatory movement of the magnetic coil unit relative to the insulating vessel is restrained by the longitudinal bearing elements.2. The superconducting magnetic arrangement of claim 1 , wherein the insulating vessel is a vacuum vessel.3. The superconducting magnetic arrangement of claim 1 , wherein the magnetic coil unit is held by six longitudinal bearing elements in the interior of the insulating vessel.4. The superconducting magnetic arrangement of claim 1 , wherein the longitudinal bearing elements are attached to the insulating vessel and the magnetic coil unit such that the longitudinal bearing elements are exposed to stress in a longitudinal direction.5. The superconducting magnetic arrangement of claim 4 , wherein each of the longitudinal bearing elements is exposed to tensile stress or compressive stress.6. The superconducting magnetic arrangement of ...

Cryostat Sample Support Assemblies and Methods for Supporting a Sample During Cryo Analysis

Cryostat sample support assemblies are provided that can include: a planar sample support defining opposing surfaces bounded by an edge; insulative members extending to the edge; and a thermal link extending to one of the opposing surfaces. Methods for supporting a sample during cryo analysis are also provided. The methods can include: supporting a sample on a planar platform; and supporting the planar platform with both insulative members lateral of the platform and a thermal link below the platform. 1. A cryostat sample support comprising:a planar sample support defining opposing surfaces bounded by an edge;insulative members extending to the support; anda thermal link extending to one of the opposing surfaces.2. The cryostat sample support of wherein the insulative members are each elongated extending from one end to another claim 1 , one of the ends coupled to the edge.3. The cryostat sample support of wherein each of the insulative members provides at least some structural support of the sample support.4. The cryostat sample support of wherein the thermal link provides at least some structural support for the sample support.5. The cryostat sample support of wherein the thermal link extends to a cryo source.6. The cryostat sample support of wherein the cryo source is a coldhead.7. The cryostat sample support of further comprising support members bracketing the insulative members.8. The cryostat sample support of wherein the insulative members are each elongated extending from one end to another claim 7 , one of the ends of each member coupled to the support and the other coupled to the support members.9. A method for supporting a sample during cryo analysis claim 7 , the method comprising:supporting a sample on a planar platform; andsupporting the planar platform with at least one insulative member and a thermal link below the platform.10. The method of further comprising aligning the insulative members opposing one another about the lateral edges of the ...

HIGH MAGNETIC FIELD SCANNING PROBE MICROSCOPE EMPLOYING LIQUID HELIUM-FREE ROOM-TEMPERATURE BORE SUPERCONDUCTING MAGNET

A scanning probe microscope of the present disclosure includes: a room-temperature bore superconducting magnet including a liquid helium-consumption free closed-cycle cooling system, a superconducting magnet, and a chamber having a room-temperature bore; and a scanning probe microscope including a scanning head, a vacuum chamber, and a vibration isolation platform; and a computer control system. The room-temperature bore superconducting magnet is cooled by the cryogen-free closed-cycle cooling system which eliminates the dependence on liquid helium for high magnetic field operation. There is no physical contact between the scanning probe microscope and the superconducting magnet connected to the closed-cycle cooling system. The scanning probe microscope can achieve atomic-scale spatial resolution. The temperature of the scanning probe microscope is not restricted by the low temperature conditions for operation of the superconducting magnet. The scanning probe microscope and the vacuum chamber can achieve high-temperature baking independent of the superconducting magnet for ultra-high vacuum conditions. 15-. (canceled)6. A microscope system , comprising:a scanning probe microscope including a scanning head and a vacuum chamber; anda superconducting magnet defining a room-temperature bore, the room-temperature bore accommodating the scanning head and at least a portion of the vacuum chamber;wherein there is no direct physical contact between the scanning probe microscope and the superconducting magnet.7. The microscopic system of claim 6 , further comprising:a first cryogen-free closed-cycle cooling system configured to provide a cryogenic temperature for operation of the superconducting magnet.8. The microscopic system of claim 7 , wherein during operation the first cryogen-free closed-cycle cooling system generates mechanical vibrations that are not directly transmitted to the scanning probe microscope.9. The microscope system of claim 7 , further comprising:a ...

CRYOSTAT ARRANGEMENTS AND MOUNTING ARRANGEMENTS FOR CRYOSTATS

A cryocooler mounting arrangement and magnets and cryostats including such an arrangement. The arrangement is for mounting the coldhead of a cryocooler in a cryostat for allowing the extraction of heat from the interior of the cryostat by the cryocooler. The mounting arrangement comprises a coldhead interface portion for mounting on the coldhead and a sock portion for mounting in the cryostat and arranged for receiving the coldhead . The sock portion comprises a receiving interface portion for receiving the coldhead interface portion so as to provide thermal contact therebetween and hence to provide thermal contact between the coldhead and the interior of the cryostat. The coldhead interface portion comprises plurality of flexible finger portions and the receiving interface portion comprises a bearing surface against which the finger portions are arranged to rest. The mounting arrangement further comprises a clamping ring for releasably clamping the finger portions against the bearing surface to ensure thermal contact between the coldhead interface and the receiving interface. The clamping ring is held in a recess on the fingers. An outer interface portion is provided at the outer vacuum wall of the cryostat 1. A cryocooler mounting arrangement for mounting the coldhead of a cryocooler in a cryostat for allowing the extraction of heat from the interior of the cryostat by the cryocooler , the mounting arrangement comprising a coldhead interface portion for mounting on the coldhead and a sock portion for mounting in the cryostat and arranged for receiving the coldhead , the sock portion comprising a receiving interface portion for receiving the coldhead interface portion so as to provide thermal contact therebetween and hence to provide thermal contact between the coldhead and the interior of the cryostat , wherein one of the coldhead interface portion and the receiving interface portion comprises plurality of flexible finger portions and the other of the coldhead ...

METHOD AND APPARATUS FOR THERMALLY DISCONNECTING A CRYOGENIC VESSEL FROM A REFRIGERATOR

The present invention relates to a method of thermally disconnecting a cryogenic vessel () of a cryostat () from a refrigerator (), e.g. during transportation of the cryostat (). In order to provide a simple and reliable technique for thermally disconnecting the refrigerator () from the cryogenic vessel (), the cryogenic vessel () is connected with the refrigerator () by means of an input channel () and an output channel (), wherein the input channel () and the output channel () are adapted to provide a loop system for a convection circulation of cryogen through the refrigerator (). 18-. (canceled)9. A method for thermally disconnecting a cryogenic vessel from a refrigerator , said cryogenic vessel containing a cryogen and said refrigerator being configured to cool said cryogen by cooling a recondenser within a recondensing chamber , said cryogenic vessel being connected with said recondensing chamber via an input channel and an output channel that are generally vertically oriented , said input channel and said output channel being configured to form a loop system for convection circulation of the cryogen through a circulation path that passes through the recondensing chamber , said method comprising:preventing convection circulation of cryogen through the recondensing chamber by stopping said circulation of cryogen and thereby thermally disconnecting the refrigerator from the cryogenic vessel; andstopping said circulation of cryogen by creating a column of stratified cryogen gas automatically within each of the input channel and the output channel when said refrigerator is not operating; andproviding said input channel with at least one structural attribute selected from the group consisting of the input channel being longer than the output channel, and thermally insulating said input channel.10. A method as claimed in comprising also preventing said circulation of cryogen by closing a valve that interrupts said circulation path.11. A method as claimed in ...

CRYOGENICALLY COOLED VACUUM CHAMBER RADIATION SHIELDS FOR ULTRA-LOW TEMPERATURE EXPERIMENTS AND EXTREME HIGH VACUUM (XHV) CONDITIONS

Methods, systems, and devices for ultra or extreme-high vacuum are described. Such systems may comprise a vacuum chamber, a target within the vacuum chamber, two or more overlapping radiation shields arranged within an inner vacuum space of a vacuum chamber, and surrounding at least a portion of the target, a first and a second cooling element unit thermally coupled to a first and second radiation shield of the two or more overlapping radiation shields, wherein the first unit is configured to reduce the first radiation shield's temperature to at least <100K, and the second unit is configured to reduce the second radiation shield's temperature to at least <25K, and a third cooling element unit coupled to the target and isolated from the first and second radiation shield, wherein the third cooling element unit is configured to reduce the target's temperature to at least <4K. 1. An ultra-high vacuum (UHV) or extreme-high vacuum (XHV) system comprising:a vacuum chamber;a target within the vacuum chamber;two or more overlapping radiation shields arranged within an inner vacuum space of a vacuum chamber, wherein the two or more overlapping radiation shields surround at least a portion of the target;a first cooling element unit thermally coupled to a first radiation shield of the two or more overlapping radiation shields, wherein the first cooling element unit is configured to reduce the first radiation shield's temperature to at least <100K;a second cooling element unit thermally coupled to a second radiation shield of the two or more overlapping radiation shields, wherein the second cooling element unit is configured to reduce the second radiation shield's temperature to at least <25K; anda third cooling element unit thermally coupled to the target, the third cooling element unit thermally isolated from both the first radiation shield and the second radiation shield, wherein the third cooling element unit is configured to reduce the target's temperature to at least <4K.2 ...

Cryostat assembly with superconducting magnet coil system with thermal anchoring of the mounting structure

A cryostat assembly with an outer container for a storage tank (3) with a first cryogenic fluid and a coil tank (4) for a superconducting magnet coil system (5). The magnet coil system is cooled by a second cryogenic fluid colder than the first cryogenic fluid, the coil tank being mechanically connected to the outer container and/or to radiation shields (6) surrounding the coil tank via a mounting structure. Liquid helium at an operating temperature of approximately 4.2 K is the first cryogenic fluid and helium at an operating temperature of <3.5 K is the second cryogenic fluid in the coil tank. The mounting structure has mounting elements (7) with thermally conductive contact points (7a) thermally coupled to heat sinks having a temperature at or below that of the storage tank, via thermal conductor elements (8). This ensures long times to quench if malfunctions occur.

Cryostat inspection camera arrangement and method

A bung assembly for closing an opening in a turret of a cryostat has a camera housing and bung body that is mechanically dimensioned to fit the opening, and is provided with a sealing arrangement for forming a gas-tight seal between the bung body and the turret.

CRYOGEN-FREE MAGNET SYSTEM COMPRISING A HEAT SINK CONNECTED TO THE GAS CIRCUIT OF A CRYOCOOLER

A cryostat arrangement includes a superconducting magnet to be cooled by an active cryocooler. The cryocooler includes a coolant circuit with a compressor, a cold head, and a cold finger in thermal contact with the magnet. A volumetric vessel containing cryogenic fluid is thermally coupled to the magnet. The volumetric vessel is connected to the coolant circuit by a pressure-resistant line. A fluidic component influences the flow rate through the line in a defined manner such that the cryogenic fluid flows between the volumetric vessel and the coolant circuit with a time constant of at least 15 minutes. The cryostat can be operated in a “cryogen-free” manner and permits a sufficiently long time to quench in the event of operational malfunctions. 1. A cryostat comprising:a vacuum vessel in which a superconducting magnet coil system is arranged;a cryocooler that actively cools the cryostat with a coolant circuit comprising a compressor, a cold head, a cold finger in thermal contact with the superconducting magnet coil system; and wherein the volumetric vessel is connected to the coolant circuit of the cryocooler via a pressure-resistant line that is guided through at least part of the vacuum vessel,', 'wherein the pressure-resistant line includes at least one fluidic component that influences a flow rate of a cryogenic fluid through the pressure-resistant line in a defined manner,', 'and wherein the fluidic component is configured to influence the flow rate of the cryogenic fluid such that the cryogenic fluid flows between the volumetric vessel and the coolant circuit with a time constant of at least 15 minutes., 'a volumetric vessel that is thermally coupled to the superconducting magnet coil system or to one or more portions of the cryostat that conduct ambient heat to the superconducting magnet coil system,'}2. The cryostat according to claim 1 , wherein the time constant is at least 1 hour.3. The cryostat according to claim 1 , wherein the time constant is more ...

METHOD AND DEVICE FOR PRECOOLING A CRYOSTAT

A method is provided for precooling a cryostat having a hollow cold head turret into which a neck tube protrudes and connects an object to be cooled to the exterior of the cryostat, wherein a cold head having a cold head stage for cooling a cryogenic working medium may be introduced into the neck tube. During a condensation operation the cryogenic working medium flows through a heat pipe into an evaporator chamber which is thermally conductively connected to the object to be cooled. During a precooling phase a precisely fitting, thermally conductive short circuit block is inserted through the neck tube into the heat pipe to provide thermal conduction between the object to be cooled and a cooling device The short circuit block is removed from the heat pipe after the target temperature is reached, and heat is subsequently transmitted through the heat pipe during a condensation operation. 1. A method for operating a cryostat , comprising a vacuum container which houses a chamber containing at least one object to be cooled , the vacuum container having at least one hollow cold head turret which contains a neck tube which connects the chamber through the outer shell of the vacuum container to the area outside of the cryostat , the neck tube being geometrically configured in such a way that a cold head may be introduced , the cold head having a cold head stage via which a cryogenic working medium , which flows or drips through a heat pipe into an evaporator chamber during a condensation operation , may be cooled , and which is thermally conductively connected to the object to be cooled via a thermal contact surface , so that the cooled cryogenic working medium is able to absorb heat from the object to be cooled and transport it to the cold head stage via the heat pipe , wherein during a precooling phase the object to be cooled is precooled to a target temperature of the working range of the cryogenic working medium in which the heat pipe is able to operate efficiently , ...

CRYOSTAT

The purpose of the present invention is to reduce vibration derived from a refrigeration machine. A cryostat comprises: a helium tank () which stores liquid helium; a refrigeration machine () which is provided above the helium tank () and re-liquefies the vaporized liquid helium in the helium tank (); a cylindrical member () which houses the lower part of the refrigeration machine () and forms a liquefaction chamber () communicating with the helium tank (); and a buffer tank () which stores helium gas and communicates with at least either the space above the surface of the liquid helium in the helium tank () or the liquefaction chamber (). The gas-phase volumes of the helium tank () and the liquefaction chamber () increase by having the buffer tank () communicate with the helium tank () and the liquefaction chamber (). 1. A cryostat comprising:a refrigerant tank that stores liquid refrigerant;a refrigeration machine disposed above the refrigerant tank, the refrigeration machine reliquefying the refrigerant evaporated inside the refrigerant tank;a cylindrical member that forms a liquefaction chamber housing a lower portion of the refrigeration machine and communicating with the refrigerant tank; andstorage means for communicating with at least one of a space inside the refrigerant tank above the liquid level of the liquid refrigerant and the liquefaction chamber and storing gaseous refrigerant.2. The cryostat according to claim 1 , wherein the storage means communicates with the liquefaction chamber.3. The cryostat according to claim 1 , wherein a superconducting magnet is disposed inside the refrigerant tank.4. The cryostat according to claim 2 , wherein a superconducting magnet is disposed inside the refrigerant tank. The present invention relates to a cryostat for cooling a superconducting magnet and the like.In a superconducting magnet device applied to an NMR apparatus or the like, in order to zero the consumption of liquid helium which serves as a refrigerant, ...

IMPROVED THERMAL CONTACT BETWEEN CRYOGENIC REFRIGERATORS AND COOLED COMPONENTS

An arrangement for mounting a two stage cryogenic refrigerator () into a cryostat, the arrangement comprising a vacuum sock () for accommodating at least a part of the refrigerator, attachment means () for attaching an upper part of the refrigerator to a surface () of the cryostat around an opening of the vacuum sock, a thermally conductive portion () of a wall of the vacuum sock which, in use, is thermally and mechanically in contact with a second cooling stage () of the refrigerator, and arrangements () are provided for thermally connecting a first stage () of the refrigerator to a thermal radiation shield () of the cryostat. 1. An arrangement for mounting a two stage cryogenic refrigerator , having first and second cooling stages in succession , into a cryostat , the arrangement comprising:a vacuum sock at least a part of the refrigerator;an upper part of the refrigerator to a surface of the cryostat around an opening of the vacuum sock;said vacuum sock having a wall with a thermally conductive wall portion that in use, is thermally and mechanically in contact with the second cooling stage of the refrigerator;thermal connectors that thermally connect the first cooling stage of the refrigerator to a thermal radiation shield of the cryostat, said thermal connectors comprising a bellows structure that is in a retracted position when the vacuum sock is at atmospheric pressure, and that is in an extended position when the vacuum sock is under vacuum so the bellows presses a thermally conductive contact piece into thermal and mechanical contact with the first cooling stage of the refrigerator;and the refrigerator being elongate in an axial direction, and the bellows structure retracting and extending in a radial direction, perpendicular to the axial direction; andsaid second cooling stage is pressed in the axial direction in contact with the thermally conductive portion of the wall of the vacuum sock, by atmospheric pressure acting on the upper part of the refrigerator ...

Active Cryogenic Electronic Envelope

A data acquisition module is disclosed for use with electronic components such as superconductive magnets wherein the electronic components and the data acquisition module may reside inside a cryostat. The data acquisition module allows conventional electronic technologies to work inside cryostats at cryogenic temperatures as low as 4° K. This is achieved by management of heat inside the module to keep the module operating at a temperature above the cryogenic temperature. This approach avoids the difficulties that arise from changes in carrier mobility in semiconductors operating at deep cryogenic temperatures. A cryogenic system comprises a cryostat containing a cryogenic fluid and at least one sensor, and a data acquisition module located within the cryostat, the module in communication with the at least one sensor to acquire data, wherein the module comprises a thermal package, a conditioning and digitizing electronic module, a controller module, a power module, and a thermal management module. 1. A cryogenic system comprising:a cryostat containing a cryogenic fluid and at least one sensor; anda data acquisition module located within the cryostat, the module in communication with the at least one sensor to acquire data, wherein the module comprises a thermal package, a conditioning and digitizing electronic module, a controller module, a power module, and a thermal management module.2. The cryogenic system of claim 1 , the thermal package comprises multiple overlapping layers claim 1 , wherein an outermost layer comprises a material with a low thermal conductivity claim 1 , a middle layer comprises a metallic layer claim 1 , and an inner most layer comprises a material with a low thermal conductivity.3. The cryogenic system of claim 1 , wherein the conditioning and digitizing electronic module comprises front end electronics and a digitizer to digitize analog signals produced by the least one sensor.4. The cryogenic system of claim 1 , wherein the controller ...

Detachable cryostat

A detachable cryostat includes many novel structures. Two radiation shields are installed in the detachable cryostat. One of the radiation shields is cooled by the second-stage cold chamber utilized to contain a cryogen, and the other one is cooled by the first-stage cold head of the cryocooler. These structures are both used for reducing heat loads from an outside. The resilient supporting device, the resilient circular sleeve, the bellows and the conductive blocks are utilized to achieve excellent thermal contact and complete thermal isolation between the cryocooler and the cryogen. A detachable binary current lead device can be introduced in the detachable cryostat, wherein, the detachable binary current lead includes a superconducting current lead and a copper current lead. When the installation adjustment mechanism is tightly pressed and loosened, it can enable the superconducting current lead to contact and separate from the copper current lead.

CRYOSTAT DEVICES FOR MAGNETIC RESONANCE IMAGING AND METHODS FOR MAKING

The cryostat may include an inner vessel configured to accommodate one or more superconducting coils, an outer vessel encompassing the inner vessel, and a thermal shield configured between the outer vessel and the inner vessel. The thermal shield may include an internal cylinder having a first end and an external cylinder encompassing the internal cylinder, the external cylinder having a second end. The thermal shield may also include a seal head configured between the internal cylinder and the external cylinder, the seal head having a first edge and a second edge. The thermal shield may further include a connecting component including a plurality of connectors. Each of the plurality of connectors may be configured to connect the first end of the internal cylinder with the first edge of the seal head and/or the second end of the external cylinder with the second edge of the seal head. 1. A cryostat comprising:an inner vessel configured to accommodate one or more superconducting coils;an outer vessel encompassing the inner vessel; anda thermal shield configured between the outer vessel and the inner vessel; and at least one heat exchanger configured to absorb heat generated by the one or more superconducting coils using a cryogen;', 'one or more tubes in fluid communication with the at least one heat exchanger for transferring the cryogen;', 'a refrigeration device configured to cool the cryogen after the cryogen cools the one or more superconducting coils; and', 'a recycling container configured to accommodate the cryogen, the recycling container being in fluid communication with the one or more tubes and the refrigeration device., 'a cooling assembly configured to cool the one or more superconducting coils, the cooling assembly including27-. (canceled)8. The cryostat of claim 1 , wherein the at least one heat exchanger includes one or more compartments configured to accommodate at least one of the cryogen or the cooled cryogen claim 1 , and the one or more ...

END CLOSURE OF A SUPERCONDUCTIVE ELECTRIC CABLE

An end closure for a superconductive electric cable which has at least one superconductive conductor which is surrounded by a tubular cryostat serving for conducting a cooling agent, which at its end is surrounded by a housing. The housing (G) has two walls () which are separated from each other by an intermediate space () and having insulating material, wherein a thermal insulation containing gas is placed in the intermediate space. The pressure in the intermediate space () of the housing (G) is adjusted to a value of between 10mbar and 1000 mbar and, connected to the intermediate space () are a pressure measuring device () and a vacuum pump () which serve for adjusting the pressure prevailing in the intermediate space () of the housing (G). 1. End closure for a superconductive electrical cable which has at least one superconductive conductor surrounded by a tubular cryostat serving for conducting a cooling agent , said end closure comprising: the housing has two walls separated from each other by an intermediate space, in whose intermediate space a gas containing thermal insulation is provided,', {'sup': '−9', 'the pressure in the intermediate space of the housing is set at a value between 10mbar and 1000 mbar, and'}, 'a pressure measuring device and a vacuum pump connected thereto serve for adjusting the pressure to a predetermined value prevailing in the intermediate space of the housing., 'a housing surrounding the end of said superconductive electrical cable, said housing containing cooling agent through which a passage connected to the conductor extends outwardly, wherein2. End closure according to claim 1 , wherein the intermediate space is connected to a container whose volume is large as compared to the volume of the gas contained in the intermediate space.3. End closure according to claim 2 , wherein the container is arranged between the housing and the vacuum pump.4. End closure according to claim 2 , wherein the volume of the container is larger at ...

SUPERCONDUCTING MAGNET DEVICE INCLUDING A CRYOGENIC COOLING BATH AND COOLING PIPES

In a method for cooling a superconducting magnet device suitable for magnetic resonance imaging, and a cooling system, a small quantity of cryogen is used by cooling the magnet coils of the magnet device by a cooling pipe assembly, the cooling pipe assembly having one or more cooling pipes through which a cryogen flows. The one or more cooling pipes are in close thermal contact with the magnet coils. Liquid cryogen is filled into a cryogen vessel to provide a cryogenic temperature for at least parts of the magnet device for superconducting operation. The magnet coils are cooled during energizing of the magnet device by this cooling pipe assembly. 1. A superconducting magnet device comprising:magnet coils;a cryogen vessel housing the magnet coils;a cooling pipe assembly comprising at least one cooling pipe in thermal contact with the magnet coils; andthe cooling pipe assembly being arranged within the cryogen vessel and comprising an inlet pipe and an outlet pipe, said inlet pipe and outlet pipe terminating outside the cryogen vessel.2. The superconducting magnet device as claimed in claim 1 , wherein the at least one cooling pipe of the cooling pipe assembly forms multiple cooling loops.3. The superconducting magnet device as claimed in claim 1 , wherein the at least one cooling pipe of the cooling pipe assembly forms a closed loop.4. The superconducting magnet device as claimed in claim 1 , comprising a high pressure cooler and outside the cryogen vessel claim 1 , connected to said cooling pipe assembly by said inlet pipe and outlet pipe.5. The superconducting magnet device as claimed in claim 1 , comprising a supply vessel and outside the cryogen vessel claim 1 , connected to said cooling pipe assembly by said inlet pipe and outlet pipe.6. The superconducting magnet device as claimed in claim 1 , wherein at least one part of said cooling pipe assembly is connected as a current lead to supply electrical current to the magnet coils.7. A method for cooling a ...

SUPERCONDUCTING MAGNET APPARATUS

The present disclosure relates to a superconducting magnet apparatus including a cryogenic cooler and a cooler chamber accommodating the cooler. At least one protrusion is provided on one of the outer surface of the cryogenic cooler and the inner surface of the cooler chamber, and a holding groove is provided in the other one thereof. The protrusion is inserted in the holding groove, thereby stably maintaining a state in which the cryogenic cooler is installed in the cooler chamber through the holding groove and protrusion. 1. A superconducting magnet apparatus comprising:a cryogenic cooler;a cooler chamber configured to accommodate the cryogenic cooler;plural protrusions protruding from any one of an outer surface of the cryogenic cooler and an inner surface of the cooler chamber; andplural holding grooves provided in the other one of the outer surface of the cryogenic cooler and the inner surface of the cooler chamber to correspond to the protrusions and configured to guide the cryogenic cooler into an interior of the cooler chamber.2. The superconducting magnet apparatus of claim 1 , wherein each of the holding grooves includes a guide channel extending in a main axial direction of the cryogenic cooler and a holding part extending from the guide channel in a circumferential direction to catch one of the protrusions.3. The superconducting magnet apparatus of claim 2 , wherein the guide channel has a width gradually reduced from an inlet side thereof in an entry direction of the cryogenic cooler.4. The superconducting magnet apparatus of claim 1 , wherein:the protrusions include a pair of protrusions provided on opposite sides of any one of the outer surface of the cryogenic cooler and the inner surface of the cooler chamber; andthe holding grooves include a pair of holding grooves provided in regions on opposite sides of the other one of the outer surface of the cryogenic cooler and the inner surface of the cooler chamber.5. The superconducting magnet apparatus of ...

AN ASSEMBLY COMPRISING A TWO-STAGE CRYOGENIC REFRIGERATOR AND ASSOCIATED MOUNTING ARRANGEMENT

An assembly has a two-stage cryogenic refrigerator and an associated mounting arrangement, and a sock having first and second stages corresponding to first and second stages of the refrigerator, with the first stage of the refrigerator being in thermal contact with the first stage of the sock and the second stage of the refrigerator being in thermal contact with the second stage of the sock. 117. An assembly comprising a two-stage cryogenic refrigerator () and associated mounting arrangement ,{'b': 15', '61', '68', '30', '32', '17, 'comprising a sock () having first () and second () stages corresponding to first () and second () stages of the refrigerator (),'}wherein the first stage of the refrigerator is in thermal contact with the first stage of the sock and the second stage of the refrigerator is in thermal contact with the second stage of the sock,{'b': '40', 'characterised in that one or more fasteners () are provided, within a section of the sock, said section extending between the first stage of the sock and the second stage of the sock,'}{'figref': {'@idref': 'DRAWINGS', 'FIGS. 8'}, 'b': '12', 'said fastener(s) acting on the second stage of the refrigerator and the second stage of the sock to mechanically clamp the second stage of the refrigerator into contact with the second stage of the sock. (, )'}2565854. An assembly according to claim 1 , wherein the sock comprises a lower wall () extending between the first stage and the second stage claim 1 , and an upper wall () extending away from the first stage in a direction opposite to the lower wall claim 1 , wherein the lower wall comprises a bellows portion ().340. An assembly according to or claim 1 , wherein fasteners () comprise bolts or similar mechanical fasteners.4363240. An assembly according to any preceding claim claim 1 , wherein a bracing piece () is provided claim 1 , attached to the second stage () of the refrigerator claim 1 , the fasteners () acting on the bracing piece to press the second ...

Assembly comprising a two-stage cryogenic refrigerator and associated mounting arrangement

An assembly comprising has a two-stage cryogenic refrigerator and an associated mounting arrangement, and comprising a sock having first and second stages corresponding to first and second stages of the refrigerator, wherein with the first stage of the refrigerator being in thermal contact with the first stage of the sock and the second stage of the refrigerator being in thermal contact with the second stage of the sock.

ASSEMBLY COMPRISING A TWO-STAGE CRYOGENIC REFRIGERATOR AND ASSOCIATED MOUNTING ARRANGEMENT

An assembly comprising has a two-stage cryogenic refrigerator and an associated mounting arrangement, and comprising a sock having first and second stages corresponding to first and second stages of the refrigerator, wherein with the first stage of the refrigerator being in thermal contact with the first stage of the sock and the second stage of the refrigerator being in thermal contact with the second stage of the sock. 1a sock having first and second stages corresponding to first and second stages of the refrigerator;the first stage of the refrigerator being in thermal contact with the first stage of the sock and the second stage of the refrigerator being in thermal contact with the second stage of the sock,one fastener within a section of the sock, said section extending between the first stage of the sock and the second stage of the sock, said at least one fastener acting on the second stage of the refrigerator and the second stage of the sock to mechanically clamp the second stage of the refrigerator into contact with the second stage of the sock; andthe second stage of sock comprising a thermally conductive block comprising protrusions extending adjacent to the second stage of the refrigerator; and wherein the at least one fastener comprises a releasable compression band around the protrusions, tightened to retain the protrusions in thermal and mechanical contact with the second stage of the refrigerator.. An assembly having a two-stage cryogenic refrigerator and associated mounting arrangement, said assembly comprising: The present application is a divisional of application Ser. No. 14/787,148, filed on Oct. 26, 2015, the contents of which are incorporated herein by reference.The present invention relates to improved arrangements for providing thermal connection between a cryogenic refrigerator and cooled components, wherein the refrigerator is removable, and the thermal connection must be capable of being broken and re-made without discernible increase in ...

CRYOSTAT ARRANGEMENT WITH A VACUUM CONTAINER AND AN OBJECT TO BE COOLED, WITH EVACUABLE CAVITY

A cryostat arrangement (), with a vacuum container () and an object () to be cooled, is provided, wherein the object () to be cooled is arranged inside the vacuum container () comprising a neck tube () leading to the object () to be cooled. A closed cavity () is formed around the cooling arm () of a cold head (), wherein the cavity () in normal operation is filled at least partly with a first cryogenic fluid (), and wherein a first thermal coupling component () is provided for the thermal coupling of the first cryogenic fluid () in the cavity () to the object () to be cooled. The cryostat arrangement () further comprises a pump device (), to which the cavity () is connected, and with which the cavity () is configured to be evacuated upon failure of the cooling function of the cold head (). Various cryostat configurations are provided. 1. A cryostat comprising:(a) a vacuum container; and wherein the object to be cooled is arranged inside the vacuum container,', 'wherein the vacuum container further comprises a neck tube, leading to the object to be cooled,', 'wherein a cooling arm of a cold head is arranged at least partly in the neck tube,', 'wherein a closed cavity is formed around the cooling arm, being sealed off fluid-tight from the object to be cooled, and', 'wherein the cavity in normal operation is filled at least partly with a first cryogenic fluid;, '(b) an object to be cooled,'}(c) a first thermal coupling component for thermal coupling of the first cryogenic fluid in the cavity to the object to be cooled,(d) a pump device, to which the cavity is connected, and with which the cavity is configured to be evacuated upon failure of the cooling function of the cold head; and(e) a monitoring device, which monitors the cooling function of the cold head, and which is configured to automatically activate the pump device upon failure of the cooling function of the cold head, so that the cavity is evacuated.2. The cryostat according to claim 1 , wherein the cooling ...

Automatic thermal decoupling of a cold head

A cryostat has a cooling arm with a first thermal contact surface which can be brought into thermal contact with a second thermal contact surface on an object to be cooled. A hollow volume () between the inner side of the neck tube, the cooling arm, and the object is filled with gas and the cooling arm is pressurized by the inner pressure of the gas and also by atmospheric pressure. A contact device brings the first and the second contact surfaces into thermal contact below a threshold gas pressure and moves them away from each other when the threshold pressure has been exceeded such that a gap () filled with gas thermally separates the first and second contact surfaces. Operationally safe and fully automatic reduction of the thermal load acting on the object to be cooled is thereby obtained in case the cooling machine fails. 1. A cryostat comprising:a vacuum container having an outer shell, said vacuum container also having a chamber and at least one hollow neck tube which connects said chamber through said outer shell to a region outside of the cryostat;at least one object to be cooled, wherein said object to be cooled is disposed in said chamber, said object to be cooled having a second thermal contact surface;a cold head having a cooling arm that is at least partially disposed in said neck tube, wherein said cooling arm is thermally connected to a refrigeration device and has a first contact surface, said cooling arm being structured to be brought into thermal contact with said second thermal contact surface via said first thermal contact surface;a gas or gas mixture having an internal pressure and a positive thermal expansion coefficient, said gas or gas mixture at least partially filling a hollow volume between an inner side of the hollow neck tube, said cooling arm and said object to be cooled, wherein said internal pressure of said gas or gas mixture pressurizes part of said cooling arm, another part of said cooling arm being directly or indirectly ...

Cooling device with cryostat and cold head having reduced mechanical coupling

A cooling device () has a cryostat () and a cold head (), in particular, the cold head () of a pulse tube cooler. The cryostat () has a vacuum container () with a vacuum container wall (), wherein the vacuum container wall () seals off a vacuum inside the vacuum container () from the environment. A flexible sealing section () connects the vacuum container wall () directly or indirectly to the room temperature part () of the cold head (). The flexible sealing section () seals off the inside of the cryocontainer () from the environment. The cooling device further reduces mechanical coupling between the cold head and the cryostat, in particular, in order to enable performance of NMR measurements with fewer disturbances due to external vibrations. 1. A cooling device comprising:a cold head or a cold head of a pulse tube cooler, said cold head having a room temperature part and a cooling arm; and a vacuum container having a vacuum container wall, wherein said vacuum container wall seals off a vacuum inside said vacuum container from an environment;', 'a cryocontainer disposed within said vacuum container, said cryocontainer structured to keep a cryogenic liquid and/or a cryogenic gas, said cryocontainer having a cryocontainer wall, wherein said cryocontainer wall seals off an inside of said cryocontainer from said vacuum of said vacuum container;', 'decoupling elements disposed between said room temperature part of said cold head and said vacuum container wall, thereby mounting said room temperature part to said vacuum container wall in a vibration-damped fashion, wherein said cooling arm of said cold head projects along a longitudinal axis through said access opening of said cryostat and into said cryocontainer; and', 'a flexible sealing section disposed between said vacuum container wall and said room temperature part, thereby directly or indirectly connecting said vacuum container wall to said room temperature part of said cold head, wherein said flexible sealing ...

CRYOSTAT DEVICES FOR MAGNETIC RESONANCE IMAGING AND METHODS FOR MAKING

The cryostat may include an inner vessel configured to accommodate one or more superconducting coils, an outer vessel encompassing the inner vessel, and a thermal shield configured between the outer vessel and the inner vessel. The thermal shield may include an internal cylinder having a first end and an external cylinder encompassing the internal cylinder, the external cylinder having a second end. The thermal shield may also include a seal head configured between the internal cylinder and the external cylinder, the seal head having a first edge and a second edge. The thermal shield may further include a connecting component including a plurality of connectors. Each of the plurality of connectors may be configured to connect the first end of the internal cylinder with the first edge of the seal head and/or the second end of the external cylinder with the second edge of the seal head. 1. A cryostat comprising:an inner vessel configured to accommodate one or more superconducting coils;an outer vessel encompassing the inner vessel; and an internal cylinder having a first end;', 'an external cylinder encompassing the internal cylinder, the external cylinder having a second end;', 'a seal head configured between the internal cylinder and the external cylinder, the seal head having a first edge and a second edge; and', 'a connecting component including a plurality of connectors, each of the plurality of connectors being configured to connect the first end of the internal cylinder with the first edge of the seal head and/or the second end of the external cylinder with the second edge of the seal head., 'a thermal shield configured between the outer vessel and the inner vessel, the thermal shield including2. The cryostat of claim 1 , wherein the connecting component is formed by bending a first extension of at least one of the first end or the second end or bending a second extension of at least one of the first edge or the second edge of the seal head.3. The cryostat of ...

METHOD AND DEVICE FOR PRECOOLING A CRYOSTAT

A method is provided for precooling a cryostat having a hollow cold head turret into which a neck tube protrudes and connects an object to be cooled to the exterior of the cryostat, wherein a cold head having a cold head stage for cooling a cryogenic working medium may be introduced into the neck tube. During a condensation operation the cryogenic working medium flows through a heat pipe into an evaporator chamber which is thermally conductively connected to the object to be cooled. During a precooling phase a precisely fitting, thermally conductive short circuit block is inserted through the neck tube into the heat pipe to provide thermal conduction between the object to be cooled and a cooling device. The short circuit block is removed from the heat pipe after the target temperature is reached, and heat is subsequently transmitted through the heat pipe during a condensation operation. 1. A method for operating a cryostat comprising a vacuum container that houses an object to be cooled , the vacuum container having a neck tube that connects the vacuum container to an area outside of the cryostat , the method comprising:maintaining the temperature of the object to be cooled during an operating phase by locating a cold head of a two-stage cooler in the neck tube such that the cold head cools a cryogenic working medium that condenses and flows through a heat pipe to a thermal contact surface that is thermally conductively connected to the object to be cooled, the working medium absorbing heat from the thermal contact surface, evaporating and returning to the cold head via the heat pipe; andprior to locating the two-stage cooler in the neck tube, cooling the vacuum chamber during a pre-cooling phase by inserting a short circuit block into the neck tube, the short circuit block fitting within the neck tube and heat pipe and having a first end external to the heat pipe that is thermally connected to a high-power cooling device and a second end in contact with the thermal ...

Cryostat and associated maglev transport vehicle and system

A cryostat () intended to be integrated into a maglev transport system (), the cryostat () comprising at least one superconductive element () and a jacket () inside which each superconductive element () is placed. The cryostat is suitable for maintaining each superconductive element () at the desired temperature and the jacket () extending along a longitudinal axis (X). The length of each superconductive element () along the longitudinal axis (X) is comprised between 30% and 100% of the length of the jacket (), and each superconductive element is a bulk element made of superconductor material. 1. A cryostat intended to be integrated into a maglev transport system , the cryostat comprising at least one superconductive element and a jacket inside which each superconductive element is placed , the cryostat being suitable for maintaining each superconductive element at a desired temperature and the jacket extending along a longitudinal axis , wherein the length of each superconductive element along the longitudinal axis is comprised between 30% and 100% of the length of the jacket , and wherein each superconductive element is a solid superconductive material element.2. The cryostat according to claim 1 , wherein each superconductive element is made from magnesium diboride (MgB2).3. The cryostat according to claim 1 , wherein each superconductive element has claim 1 , in a horizontal cutting plane perpendicular to a vertical axis of the cryostat claim 1 , a horizontal section in the form of an open-worked surface.4. The cryostat according to claim 3 , wherein the horizontal section has an area comprised between 2% and 75% claim 3 , of the area of the total surface defined by an outer contour of the horizontal section.5. The cryostat according to claim 3 , wherein the horizontal section has an outer contour and an inner contour with a globally rectangular or elliptical shape.6. The cryostat according to any claim 1 , wherein the superconductive element(s) occupy claim 1 , ...

Cryostat for operation with liquid helium and method of operating the same

A cryostat for operation with liquid helium, may comprise a primary chamber with a main region and a pot region for containing a bath of liquid helium-4, primary inlet means for introducing liquid helium-4 and primary outlet means for releasing gaseous helium-4, the primary inlet means comprising a transfer line extending into the primary region. The cryostat may be configured for operation under a continuous supply of liquid helium-4 and at a reduced helium-4 pressure, whereby gaseous helium-4 is pumped off through the outlet means. The primary chamber may comprise a baffle structure arranged between the pot region and the main region, the baffle structure defining at least one flowpath for the flow of gaseous helium-4, each flowpath forming a detoured connection between the pot region and the main region.

DUAL-PURPOSE DISPLACER SYSTEM AND METHOD

A dual-purpose displacer for adjusting a liquid cryogen level in a cryostat, the dual-purpose displacer includes a displacer wall having an exterior displacer surface and an interior displacer surface. The interior displacer surface defines a displacing chamber configured to contain a first portion of liquid cryogen. The exterior displacer surface is configured to displace a second portion of liquid cryogen contained in a cryogenic chamber of the cryostat. The dual-purpose displacer is disposed within the cryogenic chamber of the cryostat and configured to transfer the first portion of liquid cryogen contained within the displacing chamber to the cryogenic chamber. 1. A dual-purpose displacer for adjusting a liquid cryogen level in a cryostat , the dual-purpose displacer comprising:a displacer wall having an exterior displacer surface and an interior displacer surface, the interior displacer surface defining a displacing chamber configured to contain a first portion of liquid cryogen, the exterior displacer surface configured to displace a second portion of liquid cryogen contained in a cryogenic chamber of the cryostat, andwherein the dual-purpose displacer is disposed within the cryogenic chamber of the cryostat and configured to transfer the first portion of liquid cryogen contained within the displacing chamber to the cryogenic chamber.2. The dual-purpose displacer of further comprising:a displacer pipe that penetrates the cryostat and has an end fluidly connected to the displacing chamber; anda dispensing tube having a first end fluidly connected to the displacing chamber, and a second end disposed above a desired-max-level line of the displacing chamber and fluidly connected to the cryogenic chamber.3. The dual-purpose displacer of claim 2 ,wherein the dual-purpose displacer has an open cylindrical shape having a top end and a bottom end, the bottom end being a location within the displacing chamber where a pressure of the first portion of liquid cryogen ...

CRYOSTAT AND SYSTEM FOR COMBINED MAGNETIC RESONANCE IMAGING AND RADIATION THERAPY

A chamber () for a cryostat () includes: first and second annular sections () separated and spaced apart from each other along a first direction, and a third annular section () extending in the first direction between the first and second annular sections and connecting the first and second annular sections to each other. The first and second annular sections define corresponding first and second internal volumes, the third annular section defines a third internal volume, and the third internal volume is substantially less than the first internal volume and substantially less than the second internal volume. 1. An apparatus , comprising:a radiation source configured to generate a radiotherapy beam; anda magnetic resonance imager, an inner chamber, and', 'a vacuum region substantially enclosing the inner chamber,', first and second annular sections separated and spaced apart from each other along a first direction, and', 'a third annular section extending in the first direction between the first and second annular sections and connecting the first and second annular sections to each other,', 'wherein an internal width of the third annular section in a plane perpendicular to the first direction is less than an internal width of the first annular section and an internal width of the second annular section,, 'wherein the inner chamber comprises], 'wherein the magnetic resonance imager includes a cryostat, the cryostat comprisingwherein the radiotherapy beam is configured to pass through the third annular section of the cryostat.2. The apparatus of claim 1 , wherein the radiation source comprises a linear accelerator.3. The apparatus of claim 1 , wherein the radiation source comprises a multileaf collimator.4. The apparatus of claim 1 , further comprising superconducting coils disposed in the first and second annular sections claim 1 , the superconducting coils including at least a pair of first superconducting coils and a pair of second superconducting coils claim 1 , ...

MODULAR GAS CONTROL ATTACHMENT ASSEMBLY FOR CYLINDERS

Provided is a manifold attachment assembly for attachment to a cryogenic cylinder. The assembly includes a knuckle configured to be attached to the cryogenic cylinder and a manifold configured to be attached to the knuckle. The manifold has an upper surface, a lower surface configured to abut an upper surface of the knuckle, a plurality of gas passages extending through the manifold for aligning with a corresponding one of a plurality of gas passages in the knuckle, and a plurality of valve seats in the upper surface each in communication with one of the plurality of gas passages in the manifold. The assembly also includes a plurality of valves respectively secured to the manifold in one of the plurality of valve seats. The attachment assembly provides a modular assembly that reduces refurbishment and requalification time, reduces assembly labor, and simplifies servicing. 1. A manifold attachment assembly for a cylinder including:a knuckle having an upper surface, a lower surface configured to be attached to the cylinder, a plurality of first gas passages extending through the knuckle from the upper surface to the lower surface, and at least one second gas passage extending through the knuckle from a side of the knuckle to the lower surface;a manifold block configured to be attached to the knuckle, the manifold block having an upper surface, a lower surface configured to abut the upper surface of the knuckle, a plurality of valve seats in the upper surface, a plurality of first gas passages each in communication with one of the valve seats and opening to the lower surface of the manifold block to be in fluid communication with one of the first gas passages in the knuckle, and a plurality of second gas passages each in communication with one of the valve seats and opening to a side of the manifold block; anda plurality of valves each secured to the manifold block in one of the valve seats, the valves being movable between an open position allowing flow between the ...

TRANSPORTATION AND/OR STORAGE DEVICE COMPRISING A DOUBLE-WALLED INSULATING BULB

A transportation and/or storage device comprising a cap and an external packaging structure with curved outer contours and a double-walled insulating bulb. The invention can be used for transportation and/or storage of products conserved at very low temperatures by means of a liquefied fled gas, such as liquid nitrogen, and entails a reduced number of components, low manufacturing cost and permits single-use utilization. 1. A device for transporting and/or storing products comprising:an external packaging structure comprising a wall portion connecting a bottom wall to a neck portion, wherein the neck portion comprises an upper opening and wherein the wall portion comprises a vertical profile that is generally perpendicular to the bottom wall, wherein at least a portion of the vertical profile is circular, elliptical, parabolic or hyperbolic in shape;an insulating bulb suspended within the external packaging structure, the insulating bulb comprising an upper neck and a body formed from an inner wall and an outer wall enclosing an internal volume; andan attachment structure operatively connecting the interior of the upper neck and the neck portion of the external packaging structure to suspend the bulb within the external packaging structure.2. The device of claim 1 , wherein the attachment structure allows the passage of materials from the exterior of the external packaging structure into the insulating bulb while suspended.3. The device of claim 1 , wherein the attachment structure is coupled to the interior of the upper neck of the bulb through a sleeve.4. The device of claim 1 , wherein the wall portion comprises a single unitary uninterrupted claim 1 , unfolded surface.5. The device of claim 1 , wherein the external packaging structure further defines a central axis.6. The device of claim 5 , wherein the external packaging structure is generally radially symmetric around the central axis.7. The device of claim 6 , wherein a horizontal cross section of the ...

Cryogenic tank and method of storing cryogenic liquids

Method and apparatus for storing cryogenic liquids. A cryogenic tank comprising an inner storage volume within a first wall and a plurality of chambers defined by a plurality of chamber walls within the inner storage volume. The chamber walls extending the length of the inner storage volume, and the chambers disposed along the first wall and that at least one of the chambers of the plurality of chambers is defined by a plurality of chamber walls and a portion of the first wall.

LOW VIBRATION CRYOCOOLED CRYOSTAT

A low vibration cryostat includes a cryocooler with a cold head having a flange and a cooling body extending from the flange. A housing is coupled to the cold head, with the housing having an opening receiving at least a portion of the cooling body. A first bellows extends between the housing and the flange to mitigate the transfer of vibrational forces between the housing and the flange. The first bellows, the flange, and the housing collectively define a first chamber. A force balancing assembly containing a second bellows is coupled to the housing and includes a second chamber spaced from the first chamber. The two chambers are arranged to create a net zero force on the cold head when the pressure in the bellows changes. A viscous damping assembly mitigates bouncing of the cold head on support springs. 1. A low vibration cryostat comprising:a cryocooler with a cold head having a flange and a cooling body extending from the flange;a housing coupled to the cold head, the housing having an opening which receives at least a portion of the cooling body of the cryocooler;a first bellows extending between the housing and the flange of the cold head to mitigate the transfer of vibrational forces between the housing and the flange of the cold head, the first bellows applying a first force to the cold head, the first bellows, the flange, and the housing collectively defining a first chamber;a force balancing assembly spaced from the first chamber and arranged to apply an opposition force to the cold head which acts to oppose the first force applied to the cold head by the first bellows.2. The low vibration cryostat recited in claim 1 , wherein the force balancing assembly includes:a pair of opposing supports;a second bellows extending between the pair of opposing supports to mitigate the transfer of vibrational forces between the pair of opposing supports, the second bellows and the pair of opposing supports defining a second chamber; anda pressure equalizing conduit ...

VACUUM ACQUISITION SYSTEMS AND METHODS

A method for generating an insulating vacuum in a container is provided. The method includes evacuating air from a space between double walls of the container for a first predetermined time period. The method also includes after the first predetermined time period, if a vacuum level within the space has not reached a first predetermined vacuum level, purging the space by supplying a gas into the space and subsequently evacuating the air from the space for a period of time equal to the first predetermined time period. The method also includes repeating the evacuating and purging until the vacuum level within the space reaches the first predetermined vacuum level. The method also includes when the vacuum level within the space reaches the first predetermined vacuum level, evacuating the air from the space for a second predetermined time period. 1. A method for generating an insulating vacuum in a container , comprising:evacuating air from a space between double walls of the container for a first predetermined time period;after the first predetermined time period, if a vacuum level within the space has not reached a first predetermined vacuum level, purging the space by supplying a gas into the space and subsequently evacuating the air from the space for a period of time equal to the first predetermined time period;repeating the evacuating and purging until the vacuum level within the space reaches the first predetermined vacuum level;when the vacuum level within the space reaches the first predetermined vacuum level, evacuating the air from the space for a second predetermined time period;after the second predetermined time period, if the vacuum level within the space has not reached a second predetermined vacuum level, purging the space and subsequently evacuating the air from the space for a period of time equal to the second predetermined time period;repeating the evacuating and purging until the vacuum level within the space reaches the second predetermined vacuum ...

CRYOSTAT FOR SUPERCONDUCTING MAGNET SYSTEM

A cryostat for a superconducting magnet system is provided. The cryostat may include an outer vessel and an inner vessel suspended within the outer vessel. A space may be defined by the outer vessel and the inner vessel. The cryostat may include multiple first support elements and one or more second support elements. The strength of the first supporting element may be larger than that of the second support elements. The inner vessel and the outer vessel may be connected by two opposite ends of a first support element and two opposite ends of a second support element, respectively. The number of the first support elements in the lower part of the space is different from the number of the first support elements in the upper part of the space. 120-. (canceled)21. A cryostat comprising:an outer vessel;an inner vessel suspended within the outer vessel;a space defined by the inner vessel and the outer vessel, the space having an upper part and a lower part; anda plurality of first support elements comprising a first number of the first support elements located in the upper part of the space and a second number of the first support elements located in the lower part of the space,whereinat least one of the first support elements located in a first part of the space is at a first oblique angle with an XY datum plane and at a second oblique angle with an XZ datum plane, and the first support elements located in a second part of the space are in at least one of the XY datum plane or a YZ datum plane, the first part of the space being one of the lower part of the space or the upper part of the space, and the second part of the space being the other of the lower part of the space or the upper part of the space that is different from the first part,the XY datum plane is through a center of the inner vessel and perpendicular to a long axis of the inner vessel,the XZ datum plane is through the center of the inner vessel and perpendicular to the XY datum plane,the YZ datum plane is ...

Analytical Instruments, Methods, and Components

Variable temperature analytical instrument components are provided that can include: a conduit configured to extend between two chambers having different pressures; and a first mass about a section of the conduit, wherein the first mass is maintained at a first temperature. Variable temperature analytical instruments are provided that can include: a sample chamber configured to be operably coupled to a heat or cold source via one or more conduits; an interface component configured to engage the one or more conduits with the sample chamber, the interface comprising a conduit configured to extend between two chambers having different pressures; and a first mass about a section of the conduit, wherein the first mass is maintained at a first temperature. Methods for maintaining temperatures within a variable temperature analytical instrument are also provided. These methods can include maintaining a temperature within a conduit extending between two components of the instrument while each component is maintained at different pressures. 1. A variable temperature analytical instrument component comprising:a conduit configured to extend between two chambers having different pressures; anda first mass about a section of the conduit, wherein the first mass is maintained at a first temperature.2. The variable temperature analytical instrument component of wherein the component is an analysis component interface.3. The variable temperature analytical instrument component of further comprising a second mass about the first mass claim 1 , wherein the first mass is maintained at the first temperature and the second mass is maintained at a second temperature greater than the first temperature claim 1 , but less than ambient temperature.4. The variable temperature analytical instrument component of further comprising an insulating member between the first and second masses.5. The variable temperature analytical instrument component of wherein the first mass extends longitudinally ...

Analytical Instruments, Methods, and Components

Variable temperature analytical instruments and components are provided that can include: first and second conduits both configured to receive fluid from a cryofluid source and provide same to an analysis component; and a housing about the conduits wherein the housing is configured to maintain a vacuum about the conduits. Methods for maintaining temperatures within variable temperature analytical instruments are also provided. The methods can include dynamically providing fluid from a cryofluid source through at least one of two conduits housed within a vacuum, to an analysis component. 1. A variable temperature analytical instrument component comprising:first and second conduits both configured to receive fluid from a cryofluid source and provide same to an analysis component; anda housing about the conduits wherein the housing is configured to maintain a vacuum about the conduits.2. The variable temperature analytical instrument component of wherein the resistance to flow of each of the conduits is different.3. The variable temperature analytical instrument component of further comprising a first mass about the first conduit.4. The variable temperature analytical instrument component of wherein a section of the first conduit within the first mass has a resistance to flow that is different from the remainder of the first conduit.5. The variable temperature analytical instrument component of wherein the first mass is configured to be coupled to a heat source.6. The variable temperature analytical instrument component of further comprising one or more masses about the sections of the first and/or second conduits and/or defining sections of the first and second conduits claim 1 , the masses being configured to be in thermal engagement with one or more heat or cold sources.7. The variable temperature analytical instrument component of wherein the first conduit provides a resistance to flow that is less than the second conduit.8. The variable temperature analytical ...

Analytical Instruments, Methods, and Components

Variable temperature analytical instrument heat exchanger components are provided that can include a conduit in thermal communication with at least one thermally discrete mass, the discrete mass being configured as a cold source to be coupled to a member to facilitate the transfer of thermal energy. Variable temperature analytical instrument components are also provided that can include: a first mass to be maintained at a first temperature; a first conduit in fluid communication with the first mass; and a second mass thermally connected to the first conduit, the second mass having a different temperature than the first mass. Methods for varying the temperature within variable temperature analytical instruments are also provided. The methods can include thermally coupling at least a portion of an exhaust fluid conduit with a first mass and using the first mass as a cold source. 1. A variable temperature analytical instrument heat exchanger component comprising a conduit in thermal communication with at least one thermally discrete mass , the discrete mass being configured as a cold source to be coupled to a member to facilitate the transfer of thermal energy.2. The variable temperature analytical instrument heat exchanger component of wherein the member is configured to conduct thermal energy between the mass and a discrete portion of the instrument.3. The variable temperature analytical instrument heat exchanger component of wherein the member defines a radiation shield.4. The variable temperature analytical instrument heat exchanger component of wherein the radiation shield is operatively aligned about a reservoir.5. The variable temperature analytical instrument heat exchanger component of further comprising a cryofluid reservoir and wherein the conduit is configured as an exhaust of the reservoir.6. The variable temperature analytical instrument heat exchanger component of wherein the reservoir is a portion of an analysis component.7. The variable temperature ...

CRYOSTAT FOR MAGNETIC RESONANCE IMAGING SYSTEM

Cryostat systems for magnetic resonance imaging system are provided. The cryostat system may include a tank containing a cavity to accommodate a cooling medium and a superconducting coil. The system may also include a cold head assembly configured to cool the cooling medium to maintain the superconducting coil in a superconducting state. The cold head assembly may be mounted on the tank. The cold assembly may include at least a first cold head and a second cold head. The second cold head may include a taper shape with a first end surface close to the first cold head and a second end surface away from the first cold head. A diameter of the first circular end is greater than a diameter of the second circular end. 1. A cryostat for a magnetic resonance imaging system , comprising:a tank containing a cavity to accommodate a cooling medium and a superconducting coil; and the cold head assembly including a first cold head and a second cold head; and', 'the second cold head having a taper shape with a first end surface close to the first cold head and a second end surface away from the first cold head., 'a cold head assembly configured to cool the cooling medium to maintain the superconducting coil in a superconducting state, the cold head assembly being mounted on the tank, a central axis of the cold head assembly and a vertical line forming an angle, the vertical line passing a reference point of the central axis of the cold head assembly, the vertical line being parallel to a vertical plane including an axis of the superconducting coil and a cross-section of the superconducting coil,'}2. The system of claim 1 , wherein the cold head assembly is inclined away relative to the vertical plane.3. The system of claim 1 , wherein the cold head assembly is inclined along the axis of the superconducting coil.4. The system of claim 1 , wherein the angle is equal to or less than 45 degrees.5. The system of claim 1 , wherein a surface of the second cold head includes a plurality of ...

SYSTEMS AND METHODS FOR FREEZING, STORING AND THAWING BIOPHARMACEUTICAL MATERIALS

A system for using freezing, storing and thawing biopharmaceutical materials which includes a holder and a container for holding biopharmaceutical materials therein. The holder has a cavity and the container is received in the cavity. The holder includes a first portion and second portion. The container is received between the first portion and the second portion to connect the container to the holder. The holder includes an interior cradle having a bottom and edges extending from the bottom. The cradle bounds the cavity. An outer rim is connected to the cradle and separated from the cavity. The bottom includes an inner surface facing the cavity receiving the container and an outer surface. The outer surface of the bottom is recessed relative to an outer surface of the outer rim. 1. A system for use in freezing , storing and thawing biopharmaceutical materials , said system comprising:a container configured to contain biopharmaceutical materials therein;a holder having a cavity, said container received in said cavity;said holder comprising a first portion and a second portion forming an interior cradle, said container received between said first portion and said second portion to connect said container to said holder;said first portion having a first bottom and first edges extending from said first bottom and forming a first inner rim, said first bottom and said first edges bounding said cavity, said inner rim extending completely around a perimeter of said container, said first inner rim comprising longitudinal sides, ends, and curved corners surrounding said perimeter, each of said corners connecting a longitudinal side of said longitudinal sides to an end of said ends, said container contacting said first bottom, said first edges, and at least one corner of said corners;said second portion comprising a second bottom bounding said cavity opposite said first bottom and second edges extending from said second bottom and bounding said cavity;the first edges and the ...

Cooling of a dewar vessel with ice free coolant and for short sample access

The present invention relates to a pump ( 15 ) for pumping a coolant ( 9 ) within a Dewar vessel ( 1 ) and to a corresponding Dewar vessel ( 1 ) for storing samples in a coolant ( 9 ). The Dewar vessel ( 1 ) comprises a thermally insulated reservoir ( 3 ) for the coolant ( 9 ) and a sample vessel ( 11 ) provided separately and arranged in the thermally insulated reservoir ( 3 ). The reservoir ( 3 ) is connected to the sample vessel ( 11 ) in such a way that the level of coolant ( 9 ) is constant in the sample vessel ( 11 ). Pump ( 15 ) may help in keeping the level of coolant ( 9 ) in the sample vessel ( 11 ) constant. For this purpose the pump ( 15 ) comprises a chamber ( 17 ) with an inlet ( 19 ) and an outlet ( 21 ), a closing element ( 23 ) and a pressure increasing device ( 25 ). Therein, the inlet ( 19 ) is connectable to the reservoir ( 3 ) and the outlet ( 21 ) is connectable to a sample vessel ( 11 ) of the Dewar vessel ( 1 ). The chamber ( 17 ) is adapted to fill with coolant ( 9 ) through the inlet ( 19 ) by gravity and the closing element ( 23 ) is adapted to automatically close the chamber ( 17 ) when it is full of coolant ( 9 ). The pressure increasing device ( 25 ) is adapted to increase the pressure within the chamber ( 17 ), after the chamber ( 17 ) is closed, until the coolant ( 9 ) is released through the outlet ( 21 ).

CRYOSTAT FOR SUPERCONDUCTIVE MAGNET

A split cylindrical superconducting magnet system including two half magnets, each half magnet comprising superconducting magnet coils retained in an outer vacuum chamber, having a thermal radiation shield located between the magnet coils and the outer vacuum chamber, wherein the thermal radiation shield is shaped such that the axial spacing between thermal radiation shields of respective half magnets is greater at their internal diameter than at their outer diameter. 1. A split cylindrical superconducting magnet system comprising two half magnets , each half magnet having superconducting magnet coils retained in an outer vacuum chamber , a thermal radiation shield located between the magnet coils and the outer vacuum chamber , wherein the thermal radiation shield is shaped such that axial spacing between thermal radiation shields of the respective half magnets is greater at their internal diameter than at their outer diameter.2. The split cylindrical superconducting magnet system according to claim 1 , wherein the thermal radiation shield is shaped so as to be absent in a position nearest the imaging region by a step profile in a cylindrical shape of the thermal radiation shield.3. The split cylindrical superconducting magnet system according to claim 1 , wherein the thermal radiation shield and the outer vacuum chamber are similarly shaped.4. The split cylindrical superconducting magnet system according to claim 1 , wherein the thermal radiation shield is chamfered claim 1 , tapering from a minimum inner diameter to an increased inner diameter.5. The split cylindrical superconducting magnet system according to claim 1 , wherein the thermal radiation shield has a concave dished shape from a minimum inner diameter to an increased inner diameter.6. The split cylindrical superconducting magnet system according to claim 1 , wherein the thermal radiation shield has a convex dished shape from a minimum inner diameter to an increased inner diameter.7. A split cylindrical ...

REDUCING DISSIPATION AND FREQUENCY NOISE IN QUANTUM DEVICES USING A LOCAL VACUUM CAVITY

A device includes: a substrate including a superconductor quantum device, the superconductor quantum device including a superconductor material that exhibits superconducting properties at or below a corresponding critical temperature; a cap layer bonded to the substrate; and a sealed cavity between the cap layer and the substrate. 1. A method comprising:providing a substrate comprising a quantum circuit device, the quantum circuit device comprising a superconductor material that exhibits superconducting properties at or below a corresponding critical temperature; andbonding a cap layer to the substrate to form a sealed cavity between the cap layer and the substrate, wherein the sealed cavity comprises a vacuum.2. The method of claim 1 , wherein the pressure within the sealed cavity is less than or equal to about 10Torr.3. The method of claim 2 , wherein the pressure within the sealed cavity is less than or equal to about 10Torr.4. The method of claim 1 , wherein bonding the cap layer to the substrate is performed at room temperature.5. The method of claim 1 , wherein a surface of the cap layer is bonded directly to a surface of the substrate to form the sealed cavity.6. The method of claim 1 , wherein the cap layer comprises a first superconductor layer claim 1 , the substrate comprises a second superconductor layer claim 1 , and bonding the cap layer to the substrate comprises bonding the first superconductor layer to the second superconductor layer.7. The method of claim 6 , wherein each of the first superconductor layer and the second superconductor layer comprises aluminum.8. The method of claim 1 , further comprising performing claim 1 , prior to bonding the cap layer to the substrate claim 1 , ion milling of a surface of the substrate claim 1 , wherein the ion milled surface is exposed to the vacuum within the sealed cavity.9. The method of claim 1 , further comprising etching claim 1 , prior to bonding the cap layer to the substrate claim 1 , a surface of the ...

APPARATUS AND METHOD FOR SUPER-COOLED OPERATION OF A CRYOSTAT WITH LOW QUANTITIES OF COOLANT

A cryostat arrangement (′) having a vacuum container () and an object () to be cooled, which is arranged inside the vacuum container. A neck tube () leads to the object, and a cooling arm () of a cold head (), around which a closed cavity () is formed, is arranged in the neck tube, which is sealed off fluid-tight in relation to the object and is filled with cryogenic fluid in normal operation. A thermal coupling element () couples the cryogenic fluid in the cavity to the object. A pump device (), to which the cavity is connected via a valve () and with which the cavity is pumped out if the cold head fails. A monitoring unit () monitors the cooling function of the cold head, and activates the pump device to pump out the cavity if the cooling function of the cold head drops. 1. A cryostat arrangement , comprising:a vacuum container containing an object to be cooled, wherein the vacuum container has a neck tube which leads to the object, a cooling arm of a cold head at least partially arranged in the neck tube, a closed cavity which is sealed off fluid-tight with respect to the object and is formed around the cooling arm and at least partially filled with a cryogenic fluid in normal operation, and a thermal coupling element configured to thermally couple the cryogenic fluid in the cavity with the object,a pump device, to which the cavity is connected via an activatable valve and configured to pump the cavity out in the event of a drop in cooling function of the cold head, anda monitoring unit configured to monitor the cooling function of the cold head, and to activate the pump device in response to a drop in the cooling function of the cold head such that the cavity is pumped out.2. The cryostat arrangement according to claim 1 , wherein the object to be cooled comprises a superconducting magnetic coil system or a cryogen container.3. The cryostat arrangement as claimed in claim 1 , further comprising a pressure sensor connected to the cavity and configured to output ...

Superconducting Current Pump

A superconducting current pump arranged to cause a DC electrical current to flow through a superconducting circuit accommodated within a cryogenic enclosure of a cryostat comprises a rotor external to the cryogenic enclosure and a stator within the cryogenic enclosure, the rotor and stator separated by a gap through which passes a thermally insulating wall of the cryogenic enclosure, the rotor and the stator comprising at least in part a ferromagnetic material to concentrate magnetic flux in a magnetic circuit across the gap between the rotor and the stator and through the wall, so that movement of the rotor external to the cryogenic enclosure relative to the stator within the cryogenic enclosure induces a DC transport current to flow around the superconducting circuit within the cryogenic enclosure. There is no coupling between a drive motor external to the cryogenic enclosure and an internal rotor which may introduce a path for heat leakage into the cryostat, in turn increasing the heat load and thus increasing the cooling power required to maintain the cold components within the cryogenic enclosure at the low operating temperature required. 1. A superconducting current pump arranged to cause a DC electrical current to flow through a superconducting circuit accommodated within a cryogenic enclosure of a cryostat , the superconducting circuit comprising a superconducting coil or coils and one or more superconducting elements , the current pump comprising a rotor external to the cryogenic enclosure and a stator within the cryogenic enclosure , the rotor and stator separated by a gap through which passes a thermally insulating wall of the cryogenic enclosure , the rotor comprising one or more magnetic field generating elements , and the rotor and the stator comprising at least in part a ferromagnetic material to concentrate magnetic flux in a magnetic circuit across the gap between the rotor and the stator and through the wall such that the magnetic flux penetrates ...

Liquid nitrogen cooling sensor device container and liquid nitrogen cooling sensor device

The invention relates to a liquid nitrogen cooling sensor device container and liquid nitrogen cooling sensor equipment, and effectively reduces low-frequency noise while maintaining the ease with which a probe can be inserted in and removed from liquid nitrogen. Said invention comprises: a liquid nitrogen containing insulating container that contains liquid nitrogen; a sensor fixing member which has a distal end portion to which a sensor operating at a temperature of the liquid nitrogen is attached; and a fixing buffer member which is for fixing the sensor fixing member to the liquid nitrogen containing insulating container, wherein the fixing buffer member exerts a buffering effect in the liquid nitrogen.

CRYOSTAT AND METHOD FOR REDUCING HEAT INPUT INTO A CRYOSTAT

In a cryostat, in particular for use in a magnetic resonance imaging (MRI) system, and a method for reducing heat input into such a cryostat, an insert is provided that is adapted to be inserted into an opening of the cryostat. The insert is adapted to provide one or more passageways for a cryogen through the opening by defining at least one space between the outer surface of the insert and at least one part of the inner surface of the opening. This space allows the cryogen to pass over the part of the inner surface of the opening. 1. A cryostat comprising:a cryostat vessel having an interior that contains a cryostat;a refrigerator interface having an opening therein that communicates with said interior of said cryostat vessel, said opening having an inner surface and a length;an insert having an outer surface that allows said insert to be inserted into said opening to produce at least one passageway for said cryogen through said opening between said outer surface of said insert and at least a portion of said inner surface of said opening with said cryogen passing over said at least one part of said inner surface of said opening; andsaid outer surface of said insert comprising a plurality of structural elements that define said passageway through said opening and that make said passageway through said opening longer than said length of said opening.2. A cryostat as claimed in wherein said plurality of structural elements are spiral ridges that produce a spiraled passageway proceeding around said outer surface of said insert.3. A cryostat as claimed in wherein said spiraled passageway has a length that is at least two times as long as said length of said opening.4. A cryostat as claimed in wherein said spiraled passageway has a length that is at least two times as long as a length of said insert.5. A cryostat as claimed in wherein said spiraled passageway has a length that is at least three times as long as a length of said opening.6. A cryostat as claimed in wherein ...

Cryostat for superconducting magnet system

A cryostat for a superconducting magnet system is provided. The cryostat may include an outer vessel and an inner vessel suspended within the outer vessel. A space may be defined by the outer vessel and the inner vessel. The cryostat may include multiple first support elements and one or more second support elements. The strength of the first supporting element may be larger than that of the second support elements. The inner vessel and the outer vessel may be connected by two opposite ends of a first support element and two opposite ends of a second support element, respectively. The number of the first support elements in the lower part of the space is different from the number of the first support elements in the upper part of the space.

DYNAMIC BOIL-OFF REDUCTION WITH IMPROVED CRYOGENIC VESSEL

The present invention provides acryogenic vessel (), in particular for use in a magnetic resonance examination system () to mount therein superconductive main coils () of the magnetic resonance examination system (), comprising an inner vessel (), an outer 300K vessel (), and a radiation shield (), which is located between the inner vessel () and the outer 300K vessel () and which surrounds the inner vessel (), whereby the radiation shield () has at least one dry-friction area (), where dry-friction is generated upon deformation of the radiation shield (). The present invention also provides a superconductive magnet () for a magnet resonance examination system () comprising a set of superconductive main coils (), which are arranged in the above cryogenic vessel (). The present invention further provides a magnet resonance examination system () comprising the above superconductive magnet (). 1. A cryogenic vessel for use in a magnetic resonance examination system to mount superconductive main coils , the cryogenic vessel comprising:an outer vessela radiation shield located inside the outer vessel, andan inner mounting structure for mounting the superconductive main coils, which is located within the radiation shield,whereby the radiation shield has at least one dry-friction area, where dry-friction is generated upon deformation of the radiation shield.2. The cryogenic vessel according to claim 1 , wherebythe at least one dry-friction area comprises at least two shield layers, which are stacked on each other in surface contact, whereby the at least two shield layers are locally connected to each other.3. The cryogenic vessel according to claim 2 , whereby the at least two shield layers are locally connected to each other by spot welding.4. The cryogenic vessel according to claim 1 , whereby the at least two shield layers are locally connected to each other by rolling.5. The cryogenic vessel according to claim 2 , whereby at least one shield layer of the radiation ...

AN APPARATUS AND A METHOD FOR HELIUM COLLECTION AND RELIQUEFACTION IN A MAGNETOENCEPHALOGRAPHY MEASUREMENT DEVICE

The invention relates to a method and a magnetoencephalography (MEG) measurement device. In the method there is determined the ending of a scheduled inactivity period of the MEG device. At the ending of the inactivity period a cryocooler of the MEG device is switched off. Helium is allowed to boil in the Dewar vessel of the MEG device when the MEG device is active and used to perform patient measurements. The boiled helium is collected via a compressor to an external storage tank. When a new inactivity period for the MEG device commences, the cryocooler is started anew and helium is let from the external storage tank in-to the Dewar vessel, where it is re-liquefied by the cryocooler. The compressor may be switched off when the cryocooler is switched on. 1. A magnetoencephalography measurement device , comprising:an assembly of a plurality of sensors placed inside a Dewar vessel;the Dewar vessel, when in use, storing liquid helium to cool the assembly of sensors to a superconductive temperature, the Dewar vessel comprising a body portion, a mouth, and a helmet portion formed in the body portion for receiving a patient's head, the assembly of sensors being arranged around the helmet portion inside the Dewar vessel;a cryocooler apparatus suspended inside the Dewar vessel;a lid sealing the mouth, the lid comprising a first orifice allowing a flow of helium gas from a storage tank to the Dewar vessel and allowing pumping of boiled helium gas to the storage tank from the Dewar vessel, when the Dewar vessel stores liquid helium and the storage tank stores helium gas;the storage tank in gaseous communication with the Dewar vessel via a line connected to the first orifice, when the Dewar vessel stores liquid helium and the storage tank stores helium gas, the line comprising a pressure controlling device;a compressor for pumping helium gas from the Dewar vessel to the storage tank, when the Dewar vessel stores liquid helium and the storage tank stores helium gas;a control ...

CRYOSTAT

A cryostat includes a room temperature vessel, a low temperature vessel, and a refrigeration mechanism. The room temperature vessel includes a room temperature tank, an outer neck tube and a sealing head. The low temperature vessel includes a low temperature tank, an inner neck tube and a liquefaction chamber. The liquefaction chamber corresponds to the first opening and passes through the first opening. The refrigeration mechanism includes a device panel and a refrigeration device. The device panel is disposed on the sealing head. The refrigeration device includes a body and a cold finger. The body is disposed at the device panel. The cold finger is connected with the body and extends into the liquefaction chamber. 1. A cryostat comprising:a room temperature vessel comprising a room temperature tank, an outer neck tube and a sealing head, the outer neck tube communicating with the room temperature tank, a first opening being disposed at the room temperature tank, the sealing head being disposed to cover the room temperature tank, a second opening and a third opening being disposed at the sealing head, the first opening corresponding to the third opening, the outer neck tube corresponding to the second opening and being exposed outside the sealing head through the second opening, and an outer circumference of the outer neck tube being in sealingly contact with the second opening of the sealing head;a low temperature vessel comprising a low temperature tank, an inner neck tube and a liquefaction chamber, the inner neck tube being independent of the liquefaction chamber and communicating with the low temperature tank, the low temperature vessel being housed inside the room temperature tank, part of the inner neck tube being located inside the outer neck tube, part of the liquefaction chamber being located inside the room temperature tank, and the liquefaction chamber corresponding to the first opening and passing through the first opening; anda refrigeration mechanism ...

Helium vessel port arrangement for a magnetic resonance imaging system

A cryogen vessel port arrangement for a magnetic resonance imaging (MRI) system comprising a port ( 30 ) for guiding cryogen into a cryogen vessel is described. The port ( 30 ) comprises a siphon tube ( 32 ), a siphon cone ( 33 ), which is in flow connection with the siphon tube ( 32 ), and a pipe ( 34 ) with an inlet opening ( 35 ) and an outlet opening ( 36 ). The inlet opening ( 35 ) is configured for connecting it with a coldhead sock and the outlet opening ( 36 ) is in flow connection with the port ( 30 ) and the siphon cone ( 33 ). The port ( 30 ) comprises a port component ( 40 ) which comprises a flow channel ( 44 ) with a first opening ( 41 ) configured for connecting it with a service siphon ( 53, 63 ), a second opening ( 42 ) which is in flow connection with the siphon cone ( 33 ), and a third opening ( 43 ) which is in flow connection with the outlet opening ( 36 ) of the pipe ( 34 ).

SYSTEM FOR WARMING-UP AND COOLING-DOWN A SUPERCONDUCTING MAGNET

A cryogenic refrigerator system with heaters is constructed in modular form to serve as a portable servicing system to warm up and then cool down a target object by circulating a gaseous cryogen through a target object cryostat without moving the target object or breaking its vacuum. The main module is a refrigerator cryostat containing a fan that circulates gas through one or more heat exchangers which can warm or cool the gas by heaters and by one or more GM or Brayton cycle expanders. Additional components including one or more compressors, a gas charge and vent assembly, a control system, gas lines, power lines, and vacuum jacketed transfer lines can be assembled in the main module or additional modules. An example is a system that can be wheeled through a hospital to service a MRI cryostat. 1. A servicing system for servicing a target object disposed in a target object cryostat , the servicing system comprising:one or more refrigerators for cooling-down the target object to a cryogenic temperature, each refrigerator comprising at least a compressor and an expander;one or more heaters for warming-up the target object from the cryogenic temperature;a fan and a fan circuit, the fan circulating gas through the fan circuit; anda refrigerator cryostat housing the expanders and the fan in a vacuum, a plurality of heat exchangers for transferring heat from the heater to the gas in the fan circuit during warm-up of the target object and for transferring heat from the target object to the gas in the fan circuit during cool-down of the target object;a controller and a plurality of sensors, the plurality of sensors for measuring a temperature and a pressure in the fan circuit, the controller responsive to the plurality of sensors controlling at least a speed of the fan, a speed of the expanders, and a power of the heaters;a removable supply transfer line for bringing gas from the fan circuit to the target object cryostat;a removable return transfer line for returning gas ...

Air cooler for discharging cold oxygen

Disclosed is an air cooler, of which a body unit is provided with a cold air generating unit having a cryogenic oxygen transfer tube to discharge cold air, without using a vaporizer for an oxygen container for supplying cold oxygen, thereby simplifying a construction of the oxygen container, which results in decreased costs and improved cooling efficiency. The air cooler includes a body unit (10) for discharging a cold oxygen gas; and an oxygen container (20) for supplying a cryogenic oxygen gas to the body unit (10). The body unit (10) discharges the oxygen gas, which is supplied from the oxygen container (20) through a cold air outlet (11) which is provided to an upper end of the body unit (10), in cooperation with a flow fan (13). The cold air outlet (11) is provided therein with a cold air generator (31) which includes a transfer tube (30), the transfer tube being spiraled in a circular or rectangular shape, and a discharge portion (32) which is the end of the cold air generator is disposed to face the cold air outlet (11).

CRYOGENIC COOLING APPARATUS AND SYSTEM

Cryogenic cooling apparatus is disclosed for cooling a target region using the demagnetisation cooling effect. The apparatus has a primary magnet for providing a magnetic field within the target region and a demagnetisation magnet arranged to selectively provide conductive cooling to the target region. A primary shielding magnet substantially cancels the magnetic field from the primary magnet at least at a first position between the primary and demagnetisation magnets. A demagnetisation shielding magnet substantially cancels the magnetic field from the demagnetisation magnet at least at the first position between the primary and demagnetisation magnets. Each of the primary shielding magnet and demagnetisation shielding magnet comprises a cylindrical superconducting coil having a geometric envelope which encloses the primary magnet and demagnetisation magnet respectively. A conductive cooling assembly provides conductive cooling to each of the magnets. A cryogenic system including a cryostat, the apparatus and a refrigeration system is also provided. 1. Cryogenic cooling apparatus for providing cooling to a target region using the demagnetisation cooling effect , the apparatus comprising:a primary magnet for providing a magnetic field within the target region;a demagnetisation magnet arranged to selectively provide conductive cooling to the target region;a primary shielding magnet for substantially cancelling the magnetic field from the primary magnet at least at a first position between the primary and demagnetisation magnets, the primary shielding magnet comprising a cylindrical superconducting coil having a geometric envelope which encloses the primary magnet;a demagnetisation shielding magnet for substantially cancelling the magnetic field from the demagnetisation magnet at least at the first position between the primary and demagnetisation magnets, the demagnetisation shielding magnet comprising a cylindrical superconducting coil having a geometric envelope ...

Termination For a Superconductive Cable

The invention specifies a termination () for a superconducting cable () which is arranged in a tubular cryostat, which serves for carrying a coolant, and has at least one electrical conductor. The termination () has an inner sheath (), in which one end of the cable () is arranged in a coolant, and an outer sheath (), wherein the sheaths () are composed of electrically insulating material and insulating material is arranged in an existing intermediate space () between the inner and the outer sheath. The inner sheath () is connected to the cryostat, and the termination () is arranged vertically in the assembly position such that a lower part (C) of the inner and the outer sheath () is connected to earth and an upper part (A) of the inner and the outer sheath () is connected to high-voltage potential in the operating state. At the respective upper end, the inner sheath () is closed off by a first bursting disc () and the outer sheath () is closed off by a second bursting disc (). 1. Termination for a superconducting cable which is arranged in a tubular cryostat , which serves for carrying a coolant , and has at least one electrical conductor , wherein the termination comprises:has an inner sheath, in which one end of the cable is arranged in a coolant, andan outer sheath, wherein the sheaths are composed of electrically insulating material and insulating material is arranged in an existing intermediate space between the inner and the outer sheath,wherein the inner sheath is connected to the cryostat, andwherein the termination is arranged vertically in the assembly position such that a lower part of the inner and outer sheath is connected to earth and an upper part of the inner and outer sheath is connected to high-voltage potential in the operating state,wherein, at their respective upper end, the inner sheath is closed off by a first bursting disc and the outer sheath is closed off by a second bursting disc.2. Termination for a superconducting cable which is arranged ...

System having a superconductive cable

A system is provided having a superconductive cable (KA) which consists of a superconductive inner conductor (), a screen arranged concentrically therewith and a dielectric applied () between the inner conductor and the screen. The screen (S) is constructed from a superconductive part () and a part () consisting of an electrically highly conductive material enclosing the latter, and in which the screen is enclosed with the inclusion of an intermediate space (), used for feeding a liquid refrigerant through, by a cryostat (KR) which consists of two stainless steel tubes () extending concentrically with one another and separated from one another by an intermediate space (). In order to protect against abrasion of metallic parts, the surface of the screen (S) of the cable (KA), which is enclosed by the cryostat (KR), and/or of the cryostat (KR) is provided all around on its inner surface with a liner layer () made of an abrasion-resistant material with a lower friction coefficient compared with steel, which, when it encloses the screen (S) of the cable (KA), is permeable for the refrigerant. 1. System having a superconductive cable comprising:a superconductive inner conductor;a screen arranged concentrically therewith; anda dielectric applied between the inner conductor and the screen, in which the screen is constructed from a superconductive part and a part made from an electrically highly conductive material enclosing the latter, and in which the screen is enclosed with the inclusion of an intermediate space, used for feeding a liquid refrigerant through, by a cryostat which has two stainless steel tubes extending concentrically with one another and separated from one another by an intermediate space, which is evacuated and provided with superinsulation,wherein the surface of the screen of the cable, which is enclosed by the cryostat, and/or of the cryostat is provided all around on its inner surface with a liner layer made of an abrasion-resistant material with a ...

Thermal Consistency Systems and Methods for the Application of Thermal Support to a Human or Animal Body or to an Organ for Transplantation

Thermal consistency devices and systems that utilize phase change materials to provide thermal support to the body part of a human or animal within a precise temperature range for extended periods, without the need for mechanical heating or cooling or thermal support provided by chemical reactions, are disclosed. Methods of applying precise, controlled, and consistent thermal support to the body part of a human or animal utilizing phase change materials are also disclosed. 1. A thermal consistency system comprising:(a) at least one first enclosure in which is disposed a phase change material, wherein the at least one first enclosure comprises at least one conformable layer, and wherein the phase change material of the at least one first enclosure has a melting temperature range within 2° C. of a predetermined temperature; and(b) at least one second enclosure in which is disposed a phase change material, wherein the at least one second enclosure comprises at least one conformable layer, wherein the phase change material of the at least one second enclosure has a melting temperature range within 15° C. of the predetermined temperature;wherein the melting temperature range of the phase change material of the first enclosure is different than the melting temperature range of the phase change material of the second enclosure,wherein the melting temperature range of the phase change material of the first enclosure is within 10° C. of the melting temperature range of the phase change material of the second enclosure,wherein each first enclosure is adjacent to at least one second enclosure, wherein each first enclosure is within a proximity to the adjacent second enclosure whereby convective heat transfer occurs between the first enclosure and the adjacent second enclosure,wherein the predetermined temperature is in a temperature range from about −5° C. to about 85° C., andwherein the thermal consistency system is enabled to maintain at least the surface of an object, when ...

Inductively Decoupled Dual SMES In A Single Cryostat

Various SMES systems that include two magnets in a single cryostat are disclosed. These dual SMES systems can be used, for example, to provide uninterrupted power to a data center. The two coil sets are arranged such that they are magnetically decoupled from each other. In one embodiment, a toroidal coil set is used as the primary coil set. The toroidal coil set has a plurality of toroidal field (TF) coils extending radially outward and evenly spaced in the circumferential direction. The second coil set may be a solenoidal coil set having a main coil and a plurality of shielding coils. The toroidal coil set may be disposed in the space between the main coil and the shielding coils of the solenoidal coil set. Alternate designs are also presented. 1. A dual SMES system , comprising a first coil set and a second coil set , arranged such that there is no mutual inductance between the first coil set and the second coil set , wherein the first coil set and the second coil set are disposed in one cryostat.2. The dual SMES system of claim 1 , wherein the first coil set is a toroidal coil set and the second coil set is a solenoidal coil set.3. The dual SMES system of claim 1 , wherein the first coil set is a toroidal coil set and the second coil set comprises a plurality of window frame racetracks with alternating polarities claim 1 , arranged around the first coil set.4. The dual SMES system of claim 1 , wherein the first coil set operates in persistent mode and the second coil set is permanently online.5. The dual SMES system of claim 4 , wherein more of total magnetic energy is stored in the first coil set than in the second coil set.6. A dual SMES system claim 4 , comprising:a toroidal coil set; anda solenoidal coil set, comprising a main coil and a plurality of shielding coils arranged around the main coil;wherein the toroidal coil set is disposed in a space between the main coil and the shielding coils of the solenoidal coil set.7. The dual SMES system of claim 6 , ...

A Fault-Tolerant Cryogenically Cooled System

A fault-tolerant cryogenically cooled system including an outer vacuum chamber defining a vacuum region in its interior volume; a cryogenic refrigerator; equipment to be cooled, housed within the vacuum region; a free volume delimited within the vacuum region and containing a cryogen; a cold plate exposed to the free volume and thermally linked to the equipment to be cooled; a heat exchanger thermally linked to a coldest stage of the refrigerator and exposed to the free volume; a cryogen buffer vessel delimiting a buffer volume; and a passage linking the buffer volume with the free volume. 112-. (canceled)13. A fault-tolerant cryogenically cooled system , comprising:an outer vacuum chamber defining a vacuum region in its interior volume;a cryogenic refrigerator;equipment to be cooled, housed within the vacuum region;a free volume delimited within the vacuum region and containing a cryogen;a cold plate exposed to the free volume and thermally linked to the equipment to be cooled;a heat exchanger thermally linked to a coldest stage of the cryogenic refrigeratorand exposed to the free volume;a cryogen buffer vessel delimiting a buffer volume; anda passage linking the buffer volume with the free volume,wherein the cryogen buffer vessel and the passage are arranged such that, during failure of the cryogenic refrigerator, some of the mass of cryogen will flow through the passage into the buffer volume of the cryogen buffer vessel.14. A fault-tolerant cryogenically cooled system according to claim 13 , wherein the cryogen buffer vessel is external to the outer vacuum chamber.15. A fault-tolerant cryogenically cooled system according to claim 13 , wherein the cryogen buffer vessel is internal to the outer vacuum chamber.16. A fault-tolerant cryogenically cooled system according to claim 13 , wherein the cryogen buffer vessel is internal to the outer vacuum chamber claim 13 , thermally linked to a thermal radiation shield provided in a vacuum space between a cryogen vessel ...

CRYOSTAT ASSEMBLY HAVING A RESILIENT, HEAT-CONDUCTING CONNECTION ELEMENT

A cryostat assembly comprises an outer container that houses a coil tank with a superconducting magnet coil system and a first cryogenic fluid, and a storage tank with a second cryogenic fluid. The coil tank is secured to the outer container by a first suspension element and the storage tank is secured to the outer container by a second suspension element. The storage tank is thermally connected to a cover element having a mechanical and thermally-conductive connection to a tube element and to the first suspension element. The cover element connects to the storage tank via a resilient, heat-conducting connection that is in thermal contact with the cover element and the storage tank. This allows thermal coupling between the storage tank and cover element, and independent relative movements between the storage tank and cover element, while suppressing relative movements between the tube element and the superconducting magnet coil system. 1. A cryostat assembly comprising:an outer container;a coil tank located in the outer container and being rigidly secured thereto by a first suspension element, the coil tank containing a superconducting magnet coil system to be cooled and a first cryogenic fluid;a storage tank located in the outer container and being rigidly secured thereto by a second suspension element, the storage tank containing a second cryogenic fluid having a temperature higher than that of the first cryogenic fluid during operation of the magnet coil system;a tube element located within the outer container that surrounds a room temperature bore; anda cover element that is thermally and mechanically rigidly connected to the tube element and to the first suspension element, and that is thermally and mechanically connected to the storage tank via a resilient, heat-conducting connection element.2. A cryostat assembly according to claim 1 , wherein the connection element comprises a corrugated bellows claim 1 , strands claim 1 , or fabric made of thermally ...

Systems and methods for freezing, storing and thawing biopharmaceutical materials

A system for using freezing, storing and thawing biopharmaceutical materials which includes a holder and a container for holding biopharmaceutical materials therein. The holder has a cavity and the container is received in the cavity. The holder includes a first portion and second portion. The container is received between the first portion and the second portion to connect the container to the holder. The holder includes an interior cradle having a bottom and edges extending from the bottom. The cradle bounds the cavity. An outer rim is connected to the cradle and separated from the cavity. The bottom includes an inner surface facing the cavity receiving the container and an outer surface. The outer surface of the bottom is recessed relative to an outer surface of the outer rim.

Systems and methods for freezing, storing and thawing biopharmaceutical materials

A system for using freezing, storing and thawing biopharmaceutical materials which includes a holder and a container for holding biopharmaceutical materials therein. The holder has a cavity and the container is received in the cavity. The holder includes a first portion and second portion. The container is received between the first portion and the second portion to connect the container to the holder. The holder includes an interior cradle having a bottom and edges extending from the bottom. The cradle bounds the cavity. An outer rim is connected to the cradle and separated from the cavity. The bottom includes an inner surface facing the cavity receiving the container and an outer surface. The outer surface of the bottom is recessed relative to an outer surface of the outer rim.

Systems and methods for freezing, storing and thawing biopharmaceutical materials

A system for using freezing, storing and thawing biopharmaceutical materials which includes a holder and a container for holding biopharmaceutical materials therein. The holder has a cavity and the container is received in the cavity. The holder includes a first portion and second portion. The container is received between the first portion and the second portion to connect the container to the holder. The holder includes an interior cradle having a bottom and edges extending from the bottom. The cradle bounds the cavity. An outer rim is connected to the cradle and separated from the cavity. The bottom includes an inner surface facing the cavity receiving the container and an outer surface. The outer surface of the bottom is recessed relative to an outer surface of the outer rim.

Systems and methods for freezing, storing and thawing biopharmaceutical materials

A system for using freezing, storing and thawing biopharmaceutical materials which includes a holder and a container for holding biopharmaceutical materials therein. The holder has a cavity and the container is received in the cavity. The holder includes a first portion and second portion. The container is received between the first portion and the second portion to connect the container to the holder. The holder includes an interior cradle having a bottom and edges extending from the bottom. The cradle bounds the cavity. An outer rim is connected to the cradle and separated from the cavity. The bottom includes an inner surface facing the cavity receiving the container and an outer surface. The outer surface of the bottom is recessed relative to an outer surface of the outer rim.

Liquid helium circulation system and transfer line used therewith

A liquid helium circulation system capable of recycling helium gas has a liquid helium reservoir and a refrigerator where helium gas boil-off recovered from the reservoir is refrigerated and liquefied, and is designed to have the helium gas refrigerated or liquefied with the refrigerator returned to the reservoir. The system is equipped with a line that supplies high-temperature helium gas heated up inside the liquid helium reservoir to the refrigerator, where the helium gas is made into refrigerated helium gas, and supplies the refrigerated helium gas to the upper part inside the reservoir, and lines that supply low-temperature helium gas in the vicinity to the surface of liquid helium inside the liquid helium reservoir to the refrigerator, where the low-temperature gas is liquefied, and supply the liquefied helium to the reservoir.

極低温容器

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

低温系统和方法

本发明提供了一种低温样品分析系统，所述低温样品分析系统可以包括：与系统周围的环境直接物理接触的系统壳体；在系统壳体内的样品台；和在样品台与壳体之间在操作上接合的谐振频率隔离组件。还提供了一种低温样品分析系统，其包括：与支撑和包围系统的环境直接物理接触的系统壳体；在系统内并在操作上与系统的冷头联接的样品台；和隔离组件，所述隔离组件在操作上接合在由环境和/或冷头产生的谐振频率之间，所述隔离组件包括悬挂的质量块。

Flexible cold finger for cooling samples to cryogenic temperatures

Low temperature system

Plug for horizontal cryostat penetration

A plug for a horizontal cryostat penetration comprises a plurality of nested housings with thermal insulation disposed between the housings. Each housing has a tubular extension which is heat stationable to portions of the cryostat penetration, the more inner the housing, the colder being the portion to which it is stationed. The innermost and outermost housings each possess pressure relief means for relieving internal pressure buildup which occurs as a result of magnet quench or vacuum loss. In operation the plug is disposed within the cryostat penetration and in particular, typically within a tubular conduit associated therewith. The tubular extension of the outermost housing also has preferably disposed around its exterior, one or more string-shaped helically disposed lengths of sealing material. Accordingly, when the plug is placed within the penetration, a helical coolant vapor path is formed for plug cooling and exterior ventilation.

End closure of a superconductive electric cable

본 발명은, 냉각제를 가이드하는 관형 크라이오스탯에 의해 둘러싸인 적어도 하나의 초전도체를 가지고, 단부에서 냉각제를 포함하는 하우징(G)에 의해 둘러싸이는, 초전도 전기 케이블을 위한 엔드 클로저에 관한 것이다. 상기 하우징(G)은 중간 공간(9)에 의해 서로 분리된 두 개의 벽(7, 8)을 가지고, 상기 중간 공간에는 가스를 포함하는 열 절연제가 배치된다. 상기 하우징(G)의 중간 공간(9) 내 압력은 10 -9 mbar 내지 1000 mbar 사이의 값으로 조절되며, 상기 중간 공간(9)에 연결된 압력 측정기(12) 및 진공 펌프(11)가, 상기 하우징(G)의 중간 공간(9) 내 압력을 조절한다. The present invention relates to an end closure for a superconducting electrical cable, having at least one superconductor surrounded by a tubular cryostat guiding a coolant, and surrounded at the end by a housing (G) comprising a coolant. The housing G has two walls 7 , 8 separated from each other by an intermediate space 9 , in which a thermal insulation comprising gas is arranged. The pressure in the intermediate space 9 of the housing G is adjusted to a value between 10 -9 mbar and 1000 mbar, and the pressure gauge 12 and the vacuum pump 11 connected to the intermediate space 9 are Adjust the pressure in the intermediate space (9) of the housing (G).

Low heat loss cryogenic equipment using bellows

본 발명은 상단이 상단 커버로 덮여 밀폐된 외부 용기; 상기 외부 용기 내부에서 상기 외부 용기 내면과의 사이에 공간을 형성하면서 배치되고 저온 액체가 수용되는 내부 용기; 및 상기 외부 용기 상단 하부와 상기 내부 용기 상단 상부 사이 공간에 배치되어 상기 외부 용기와 상기 내부 용기를 연결하고 저온 액체의 이송 경로가 되는 연결관을 포함하는 저온 장치에 있어서, 상기 연결관의 하단이 결합되는 상단 체결부와, 상기 내부 용기의 저온 액체 출입구에 결합되는 하단 체결부와, 상기 상단 체결부와 상기 하단 체결부 사이에서 주름진 부분을 갖는 벨로우즈 형상부를 구비한 벨로우즈를 포함하는 것을 특징으로 하는 벨로우즈를 이용한 저 열손실 저온장치를 제공한다.

Method and system for inerting a wall of a liquefied fuel gas-storage tank

본 발명은 액화 연료 가스를 수용하도록 의도된 불침투성이고 단열된 탱크(1)의 벽체를 불활성화하기 위한 절차와 관련되어 있으며, 여기서 벽체는 2개의 불침투성 배리어들(2, 4)와 하나의 단열 배리어(3)을 포함하는 복층 구조를 가지며, 상기 절차는: - 단열 배리어(3)의 기상이 연료 가스의 가연 한계 압력 Pi보다 낮은 상대적 압력 아래로 놓여지는 제1 불활성화 모드를 수행하는 단계; - 제1 불활성화 모드 동안 단열 배리어(3)의 기상의 압력이 상기 문턱 압력 Ps를 초과하는지 감지하는 단계; - 제1 불활성화 모드로부터 제2 불활성화 모드로 전환하되, 제2 불활성화 모드는 불활성 가스로 단열 배리어(3)를 씻어내기 위한 준비를 하는 단계 를 준비한다. The present invention relates to a procedure for deactivating the wall of an impervious and insulated tank (1) intended to contain liquefied fuel gas, wherein the wall has two impermeable barriers (2, 4) and one It has a multi-layer structure comprising an insulating barrier (3), the procedure comprising: - performing a first deactivation mode in which the gas phase of the insulating barrier (3) is placed below a relative pressure lower than the combustibility limit pressure Pi of the fuel gas; - detecting whether the pressure of the gas phase of the insulating barrier (3) exceeds said threshold pressure Ps during the first deactivation mode; - switching from the first deactivation mode to a second deactivation mode, wherein the second deactivation mode prepares for flushing the insulating barrier 3 with an inert gas; prepare

Vacuum-insulated cooling vessel for cryogenic cooling of portable devices

Transportation and/or storage device comprising a double- walled insulating bulb

本发明涉及运输和/或存储装置，所述运输和/或存储装置包括罩盖和具有弯曲的外轮廓的外部包装结构以及双壁绝缘球泡。本发明可用于运输和/或存储借助于诸如液氮的液化气体保存在极低温度下的产品，且带来减少数量的组件，低制造成本并允许一次性使用。

Low temperature keeps ware and plug -in components of location in low temperature keeps opening of ware

本实用新型涉及一种低温保持器和定位在低温保持器的开口中的插件。低温保持器尤其用在磁共振成像(MRI)系统中。为了提供简单且可靠的技术来减少运输期间进入低温保持器中的热输入，提供了一插件(14,28)，所述插件(14,28)适于插入低温保持器的开口(5,27)中，所述插件(14,28)适于通过在所述插件(14,28)的外表面(19)和所述开口(5,27)的内表面(21)的至少一部分之间限定出至少一个空间(18)而提供用于使致冷剂(7)通过所述开口(5,27)的一个或多个通道(23)，所述空间(18)允许所述致冷剂(7)在所述开口(5,27)的内表面(21)的所述部分上通过。

Device for irradiating substances at low temperatures

Manhole Capable of Contractive Displacement Absorption and Double Wall Tank with the Same

본 발명은 수축 변위를 흡수할 수 있는 맨홀 구조와 이를 포함하는 이중 탱크에 관한 것으로, 본 발명의 맨홀 구조는 플랜지를 이용하여 설치 간단한 구조로 탱크의 수축 변위 흡수가 가능한 이중 탱크 맨홀 구조에 관한 것으로서, 본 발명의 맨홀 구조는 플랜지 구조를 이용하여 제작에 용이하고 온도 변화에 따른 연결부의 크랙을 방지할 수 있다

Superconducting magnet

(57)【要約】 【課題】 超電導コイルを冷媒に浸漬することなく、冷 却能力に優れ取り扱い易く経済的で信頼性が向上する超 電導マグネット装置を提供することである。 【解決手段】 冷凍機７で冷却された冷媒を輻射シール ド２内に設けられた極低温冷媒容器１３に貯蔵し、この 極低温冷媒容器１３と直接または熱伝導部材１２を介し て熱的に接続された超電導コイル１を冷却する。

Method and apparatus for controlling the temperature in a cryostat cooled to cryogenic temperatures using stagnant and moving gas

Ein Kryostat für die Bereitstellung einer Temperaturregelung, wobei ein Zweck darin besteht, dass physikalische Eigenschaften von Materialien gemessen werden, wobei der Kryostat einen supraleitenden Magnetaufbau (19) zum Erzeugen eines variablen Magnetfeldes in dem Probenvolumen (21) verwendet, sowie eine Kältemaschine (30, 31, 33, 50, 52) zum Kühlen des Probenraumes. Die Ausgestaltung der Kältemaschinenkammer (22) bietet einen ausgezeichneten Wärmetausch zwischen verschiedenen Stufen der Kältemaschine ohne das Erfordernis körperlicher Wärmeverbindungsglieder. Diese Konstruktion ermöglicht die gezielte Abgabe von Kühlleistung von der Kältemaschine an gewünschte Bereiche innerhalb des Kryostaten, ohne flexible physikalische Wärmeglieder zu benutzen. Ein Gegenstromwärmetauscher (43) und Ventile (40, 46) auf Umgebungstemperatur erleichtern die effiziente Verwendung der Kältemaschinenstufen (30, 31). Das Abführen großer Wärmelasten, welche durch den supraleitenden Magneten erzeugt werden, wenn er in einem Herauf- oder Herunterfahrbetrieb arbeitet, wird teilweise dadurch erreicht, dass ein thermisches Kopplungselement in Form einer massiven Platte (27) zwischen die Kältemaschinenkammer und den Magnetaufbau geschaltet ist. A cryostat for providing temperature control, one purpose being to measure physical properties of materials, the cryostat using a superconductive magnet assembly (19) to generate a variable magnetic field in the sample volume (21), and a chiller (30, 31, 33, 50, 52) for cooling the sample space. The design of the refrigerator chamber (22) provides excellent heat exchange between different stages of the refrigerator without the need for physical heat connectors. This design allows the targeted delivery of cooling power from the refrigerator to desired areas within the cryostat without the use of flexible physical heaters. A counterflow heat exchanger (43) and ambient temperature valves (40, 46) facilitate the efficient use of the refrigerator stages (30, ...

Improvement of lowwtemperature vessel with external refrigerator for superconductive nmr spectrometer

Improved method and device for transportation and storage of cryogenic devices

FIELD: transport. SUBSTANCE: transportation container includes cryogenic refrigeration system for cryogenic in-transit cooling of superconducting magnet which system monitors temperature and/or pressure in superconducting magnet and performs circulation of refrigerant in superconducting magnet to maintain cryogenic temperatures in superconducting coils, and electric power infeed which is accessible from outside of transportation container. The infeed connects refrigeration system with external power source installed on a vehicle. Method for superconducting magnet transportation includes superconducting magnet fastening in transportation container, connecting cooling head of each device with cryogenic refrigeration system, transportation container loading, electric power infeed connecting with external power source of vehicle. EFFECT: long-term storage of cryogenic device with low losses or without losses of freezing mixture. 15 cl, 6 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (51) МПК F25D 3/10 (13) 2 561 741 C2 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ (21)(22) Заявка: ИЗОБРЕТЕНИЯ К ПАТЕНТУ 2012151849/13, 28.04.2011 (24) Дата начала отсчета срока действия патента: 28.04.2011 (72) Автор(ы): РОДЖЕРС Джон Р. (US), БЕК Эдвардус Мария (US) 04.05.2010 US 61/330,937 (43) Дата публикации заявки: 10.06.2014 Бюл. № 16 R U (73) Патентообладатель(и): КОНИНКЛЕЙКЕ ФИЛИПС ЭЛЕКТРОНИКС Н.В. (NL) Приоритет(ы): (30) Конвенционный приоритет: (45) Опубликовано: 10.09.2015 Бюл. № 25 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 04.12.2012 (86) Заявка PCT: 2 5 6 1 7 4 1 (56) Список документов, цитированных в отчете о поиске: US 20090266100 A1, 29.10.2009. WO 2007/123561 A2, 01.11.2007. SU 728610 A1, 07.11.1991. JP 2001-244109 A, 07.09.2001 2 5 6 1 7 4 1 R U (87) Публикация заявки PCT: WO 2011/138717 (10.11.2011) Адрес для переписки: 129090, Москва, ул. Б. Спасская, 25, строение 3, ООО "Юридическая фирма Городисский и Партнеры" (54) ...

Plug for horizontal type cryostat penetrating hole

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

Electrically conductive shield for refrigerator

一种低温磁体系统，包括容纳有磁体绕组的低温容器(1)、包围该低温容器的真空夹套(3)、以及制冷机(4)，该制冷机至少部分地容纳在该真空夹套内并且与该低温容器热连接。尤其是，该系统还包括电磁屏蔽罩。

Method and system for inerting wall of liquefied fuel gas-storage tank

FIELD: storage or distribution of gases or liquids. SUBSTANCE: invention relates to the storage of liquefied gas. Method for inerting a wall of sealed and thermally insulating tank (1), said wall having a multilayer structure comprising two sealed barriers (2, 4) and one thermally insulating barrier (3). Method includes implementing a first inerting mode in which the gaseous phase of thermally insulating barrier (3) is placed under a relative pressure which is lower than a pressure limit of inflammability Pi of the fuel gas. Method then includes detecting, during the first inerting mode, whether the pressure of the gaseous phase of thermally insulating barrier (3) exceeds said threshold pressure Ps. Method then includes switching from the first inerting mode to a second inerting mode. Second inerting mode includes sweeping thermally insulating barrier (3) with an inert gas. EFFECT: providing a method and an inerting of a tank wall system for containing liquefied fuel gas that are reliable and make it possible to increase the insulation of the tank. 17 cl, 3 dwg, 3 tbl РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 673 837 C2 (51) МПК F17C 3/08 (2006.01) F17C 3/10 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК F17C 3/085 (2006.01); F17C 13/001 (2006.01); F17C 3/10 (2006.01) (21)(22) Заявка: 2016131896, 16.02.2015 (24) Дата начала отсчета срока действия патента: (73) Патентообладатель(и): ГАЗТРАНСПОРТ ЭТ ТЕХНИГАЗ (FR) Дата регистрации: 30.11.2018 21.02.2014 FR 1451416 (43) Дата публикации заявки: 26.03.2018 Бюл. № 2073814 C1, 20.02.1997. US 20130326861 A1, 12.12.2013. RU 2120686 C1, 20.10.1998. RU 2082910 C1, 27.06.1997. 9 (45) Опубликовано: 30.11.2018 Бюл. № 34 (86) Заявка PCT: C 2 C 2 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 21.09.2016 EP 2015/053234 (16.02.2015) (87) Публикация заявки PCT: 2 6 7 3 8 3 7 WO 2015/124536 (27.08.2015) R U 2 6 7 3 8 3 7 (56) Список документов, цитированных в ...

METHOD AND SYSTEM FOR INERTING THE RESERVOIR WALL FOR STORAGE OF LIQUEFIED FUEL GAS

РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2016 131 896 A (51) МПК F17C 3/10 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2016131896, 16.02.2015 (71) Заявитель(и): ГАЗТРАНСПОРТ ЭТ ТЕХНИГАЗ (FR) Приоритет(ы): (30) Конвенционный приоритет: 21.02.2014 FR 1451416 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 21.09.2016 R U (43) Дата публикации заявки: 26.03.2018 Бюл. № 09 (72) Автор(ы): ДЕЛЕТРЕ Бруно (FR), ЛОМБАР Фабрис (FR) (86) Заявка PCT: (87) Публикация заявки PCT: WO 2015/124536 (27.08.2015) R U (54) СПОСОБ И СИСТЕМА ДЛЯ ИНЕРТИРОВАНИЯ СТЕНКИ РЕЗЕРВУАРА ДЛЯ ХРАНЕНИЯ СЖИЖЕННОГО ТОПЛИВНОГО ГАЗА (57) Формула изобретения 1. Способ для инертирования стенки непроницаемого и теплоизолированного резервуара (1), для сжиженного топливного газа, в которома, стенка имеет многослойную конструкцию, содержащую два непроницаемых барьера (2, 4) и один термоизоляционный барьер (3), расположенный между двумя непроницаемыми барьерами (2, 4), при этом упомянутый термоизоляционный барьер (3) содержит изоляционные твердые материалы и газовую фазу, включающий в себя: выполнение первого режима инертирования, в котором устройство управления запускает насосное устройство, чтобы поместить и поддерживать газовую фазу термоизоляционного барьера (3) при заданном отрицательном относительном давления Р1, более низкого, чем пороговое давление Ps, упомянутое пороговое давление Ps, являющееся более низким, чем давление Pi предела воспламеняемости топливного газа, выявление, в ходе первого режима инертирования, того, не превышает ли давление газовой фазы термоизоляционного барьера (3) упомянутое пороговое давление Ps, переключение из первого режима инертирования во второй режим инертирования в ответ на выявление давления газовой фазы термоизоляционного барьера (3), превышающего пороговое давление Ps, второй режим инертирования, содержащий этап продувки термоизоляционного барьера (3) инертным газом. 2. Способ для инертирования ...

CRYOGENIC RESERVOIR AND METHOD FOR STORING CRYOGENIC LIQUIDS

РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2016 139 645 A (51) МПК B64D 37/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2016139645, 10.10.2016 (71) Заявитель(и): ЗЕ БОИНГ КОМПАНИ (US) Приоритет(ы): (30) Конвенционный приоритет: 02.12.2015 EP 15382600.3 Адрес для переписки: 190000, Санкт-Петербург, BOX-1125, "ПАТЕНТИКА" Стр.: 1 A 2 0 1 6 1 3 9 6 4 5 R U A (57) Формула изобретения 1. Криогенный резервуар, содержащий внутренний объем (102) хранения в пределах первой стенки (104), и множество камер (108), заданных множеством стенок (110) камер во внутреннем объеме (102) хранения, причем стенки (110) камер проходят по длине внутреннего объема (102) хранения, камеры (108) расположены вдоль первой стенки (104), а по меньшей мере одна из камер (108) указанного множества камер (108) задана множеством стенок (110) камер и частью первой стенки (104). 2. Криогенный резервуар по п. 1, в котором указанная по меньшей мере одна из камер (108), заданная частью первой стенки (104) множества камер (108), расположена в окружном направлении вдоль первой стенки (104). 3. Криогенный резервуар по п. 1, в котором каждая камера (108) из множества камер (108) содержит по меньшей мере отверстие (112) на каждой стенке (110) камеры (108). 4. Криогенный резервуар по п. 1, в котором указанная по меньшей мере одна из камер (108), заданная частью первой стенки (104), присоединена к первой стенке (104). 5. Криогенный резервуар по п. 1, в котором высота камер (108) по существу равна средней толщине границы раздела фаз жидкость-газ криогенной жидкости, хранящейся в криогенном резервуаре (100). 6. Криогенный резервуар по п. 1, в котором указанное множество камер (108) имеет сотовую конструкцию. 7. Криогенный резервуар по п. 1, в котором множество камер (108) имеют форму, выбранную из квадратной, прямоугольной, треугольной или ромбовидной формы камер (108). 8. Криогенный резервуар по п. 1, в котором стенки (110) камер (108) выполнены из ...

Thermal radiation shield plate for superconducting magnet

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

Transportable magnetic resonance imaging (MRI) system

A portable MRI or NMR imaging system comprising a cryogen vessel housing cooled equipment, said system being housed within a transportable container, said container being divided into at least three sections. A first section provides accommodation for an operator and access to equipment as required to operate the cooled equipment. A second section houses the cryogen vessel. A third section houses auxiliary equipment required for operation of the cooled equipment but which is not required to be accessed by the operator to operate the equipment. Also provided is a cryostat comprising an outer vacuum container, itself housing a cryogen vessel for containing cooled equipment, wherein space between the cryogen vessel and the outer vacuum container is evacuated. The outer vacuum container is in the form of at least a section of a standard shipping container.

Disinfection device for a cryostat

Kryostat (1) mit einem Behälter (2) zur Aufnahme eines Mikrotoms, wobei das Mikrotom einen Messerhalter aufweist, mit einem den Behälter (2) verschließenden Deckel (3) oder einer verschließbaren Sichtscheibe und einer Desinfektionseinrichtung mit UV-Lichtquelle, der eine Steuerschaltung (4) zugeordnet ist, dadurch gekennzeichnet, dass die UV-Lichtquelle als UV-C Lichtquelle (5) zur Desinfektion durch Bestrahlung ausgebildet und im Innern des Behälters angeordnet ist, wobei von der UV-C Lichtquelle (5) abgestrahlte Wellenlänge Lambda = 254 nm beträgt, wobei dem verschließbaren Deckel (3) oder der Sichtscheibe ein Sicherheitsschalter (6) zugeordnet und die Steuerschaltung (4) elektrisch mit der UV-C Lichtquelle (5) und dem Sicherheitsschalter (6) verbunden ist und wobei die UV-C Lichtquelle (5) beim Ansprechen des Sicherheitsschalters (6) über die Steuerschaltung (4) deaktiviert wird, wobei die Steuerschaltung (4) eine automatische Zeitsteuerung aufweist, so dass eine vollautomatische Desinfektion zu vorwählbaren Zeiten durchführbar ist. Cryostat (1) with a container (2) for receiving a microtome, the microtome having a knife holder, with a lid (3) that closes the container (2) or with a closable window and a disinfection device with a UV light source, which has a control circuit ( 4), characterized in that the UV light source is designed as a UV-C light source (5) for disinfection by irradiation and is arranged inside the container, the wavelength emitted by the UV-C light source (5) being lambda = 254 nm is, the closable cover (3) or the window is assigned a safety switch (6) and the control circuit (4) is electrically connected to the UV-C light source (5) and the safety switch (6) and the UV-C light source ( 5) is deactivated when the safety switch (6) responds via the control circuit (4), the control circuit (4) having an automatic time control so that a fully automatic De infection can be carried out at preselectable times.