ROTATING ANODE FOR RADIOGENIC TUBES

The invention relates to an X-ray rotating anode whose body has radial recesses which cross under the path of the focus spot and those which cut through the path of the focus spot. These recesses are used to compensate for stresses which are caused during the production of X-ray radiation by the heating of the anode which occurs at the same time. However, in the case of such unstressed anodes, it is still desirable to increase the load capacity. According to the invention, this is possible in that the holes (15) are broken towards the focus spot path (9, 10) and the plate (8) is a ring which is at least 6 mm thick, corresponds approximately to the width of the focus spot path and has a heat-insulating hub (16, 12) towards its rotation axis (11). An X-ray tube which is equipped with a rotating anode according to the invention is particularly suitable for use in medical X-ray diagnosis.

Rotary anode X-ray tube

In exemplary embodiments, the anode is driven by an induction motor, between the stator and rotor of which the wall of the vacuum envelope of the tube is disposed. To reduce the overall length and the lever actions of the weight of the anode which act on the bearing which are disadvantageous in this construction, the disclosure provides an annular anode which is disposed in the same plane with the drive rotor. The rotor and stator can here be surrounded by the ring of the anode or they can be secured externally about the latter. X-ray tubes in accordance with the disclosure are particularly suited for use for the purpose of medical x-ray examination.

X-RAY TUBE WITH ROTATING ANODE

TUBE A RAYONS X A ANODE TOURNANTE 14 DONT LE CORPS D'ANODE EST SITUE A UNE EXTREMITE D'UN ARBRE 16 DONT L'AUTRE EXTREMITE EST SUPPORTEE PAR VOIE MAGNETIQUE, DES PALIERS DE CAPTURE 23, 24 LUI ETANT ASSOCIES DANS LA REGION DU ROTOR. LE ROTOR 17 EST INCORPORE DANS L'ARBRE 16 ET LES PALIERS DE CAPTURE 23, 24 SONT ASSOCIES AUX DEUX EXTREMITES DUDIT ROTOR. APPLICATION A LA RADIOLOGIE. X-RAY TUBE WITH ROTATING ANODE 14 WHOSE ANODE BODY IS LOCATED AT ONE END OF A SHAFT 16 WHOSE OTHER END IS MAGNETICALLY SUPPORTED, CAPTURE BEARINGS 23, 24 HIM ASSOCIATED IN THE ROTOR REGION. THE ROTOR 17 IS INCORPORATED IN THE SHAFT 16 AND THE CAPTURE BEARINGS 23, 24 ARE ASSOCIATED WITH THE TWO ENDS OF THE SAID ROTOR. APPLICATION TO RADIOLOGY.

Process for producing a two-layer sintered contact piece on the basis of silver and copper

X-RAY TUBE WITH ROTATING ANODE

The anode of the rotating-anode X-ray tube has a power-supply contact in the rotating shaft. In the case of known embodiments, said power-supply contact consists of a touching contact between moving and stationary parts, so that friction and hence wear occur. In order to prevent the contact becoming worn out, a liquid-metal contact (14) is provided which has a pot containing liquid metal (16) into which a pin (17) dips as the mating contact, which pin (17) is constructed as an attachment on the rotating shaft (8) of the anode (7). Such a rotating-anode X-ray tube which is provided with a liquid-metal contact is particularly suitable for use in X-ray diagnosis apparatuses which can be highly loaded.

X-RAY TUBE WITH ROTATING ANODE

A.L'INVENTION CONCERNE UN TUBE A RAYONS X A ANODE TOURNANTE DE FORME ANNULAIRE, MONTEE EN SON CENTRE ET ENTRAINEE A L'AIDE D'UN MOTEUR, LA PAROI DU TUBE SE SITUANT ENTRE LE STATOR ET LE ROTOR DUDIT MOTEUR. B.LE CORPS D'ANODE ANNULAIRE 4, LE STATOR 14 ET LE ROTOR 5 SONT DISPOSES COAXIALEMENT L'UN DANS L'AUTRE. C.APPLICATION A L'INDUSTRIE RADIOLOGIQUE. A. THE INVENTION CONCERNS AN X-RAY TUBE WITH A ROTATING ANODE OF ANNULAR SHAPE, MOUNTED AT ITS CENTER AND DRIVEN BY A MOTOR, THE WALL OF THE TUBE SITUATED BETWEEN THE STATOR AND THE ROTOR OF THE MOTOR. B. THE ANNULAR ANODE BODY 4, STATOR 14 AND ROTOR 5 ARE ARRANGED COAXIALLY INTO ANOTHER. C. APPLICATION TO THE RADIOLOGICAL INDUSTRY.

X-RAY TUBE WITH ROTATING ANODE