Настройки

Укажите год
-

Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

Подробнее
-

Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

Подробнее

Форма поиска

Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
Ведите корректный номера.
Ведите корректный номера.
Ведите корректный номера.
Ведите корректный номера.
Укажите год
Укажите год
Применить Всего найдено 55. Отображено 55.
18-11-2004 дата публикации

Carbon fuel particles used in direct carbon conversion fuel cells

Номер: US20040229109A1
Автор: John Cooper, Nerine Cherepy
Принадлежит: The Regents of the University of California

A system for preparing particulate carbon fuel and using the particulate carbon fuel in a fuel cell. Carbon particles are finely divided. The finely dividing carbon particles are introduced into the fuel cell. A gas containing oxygen is introduced into the fuel cell. The finely divided carbon particles are exposed to carbonate salts, or to molten NaOH or KOH or LiOH or mixtures of NaOH or KOH or LiOH, or to mixed hydroxides, or to alkali and alkaline earth nitrates.

Подробнее
Номер записи: 1
23-04-2019 дата публикации

Plastic scintillator with effective pulse shape discrimination for neutron and gamma detection

Номер: US0010266761B2
Автор: Natalia P. Zaitseva, M Leslie Carman, Nerine Cherepy, Andrew M. Glenn, Sebastien Hamel, Stephen A. Payne, Benjamin L. Rupert, ZAITSEVA NATALIA P, CARMAN M LESLIE, CHEREPY NERINE, GLENN ANDREW M, HAMEL SEBASTIEN, PAYNE STEPHEN A, RUPERT BENJAMIN L, Zaitseva, Natalia P., Carman, M Leslie, Cherepy, Nerine, Glenn, Andrew M., Hamel, Sebastien, Payne, Stephen A., Rupert, Benjamin L.
Принадлежит: Lawrence Livermore National Security, LLC, L LIVERMORE NAT SECURITY LLC

In one embodiment, a scintillator material includes a polymer matrix; and a primary dye in the polymer matrix, the primary dye being a fluorescent dye, the primary dye being present in an amount of 5 wt % or more; wherein the scintillator material exhibits an optical response signature for neutrons that is different than an optical response signature for gamma rays. In another embodiment, a scintillator material includes a polymer matrix comprising at least one of: polyvinyl xylene (PVX); polyvinyl diphenyl; and polyvinyl tetrahydronaphthalene; and a primary dye in the polymer matrix, the primary dye being a fluorescent dye, the primary dye being present in an amount greater than 10 wt %. A total loading of dye in the scintillator material is sufficient to cause the scintillator material to exhibit a pulse-shape discrimination (PSD) figure of merit (FOM) of about at least 2.0.

Подробнее
Номер записи: 2
14-09-2017 дата публикации

TRANSPARENT CERAMIC GARNET SCINTILLATOR DETECTOR FOR POSITRON EMISSION TOMOGRAPHY

Номер: US20170260448A1
Автор: Nerine Cherepy, Stephen A. Payne, Zachary Seeley, Peter Carl Cohen, Mark S. Andreaco, Matthias J. Schmand, CHEREPY NERINE, PAYNE STEPHEN A, SEELEY ZACHARY, COHEN PETER CARL, ANDREACO MARK S, SCHMAND MATTHIAS J, Cherepy Nerine, Payne Stephen A., Seeley Zachary, Cohen Peter Carl, Andreaco Mark S., Schmand Matthias J.
Принадлежит:

In one embodiment, a method includes forming a powder having a composition with the formula: ABCO, where h is 3±l 0%, i is 2=10%, j is 3±10%, A includes one or more rare earth elements, B includes aluminum and/or gallium, and C includes aluminum and/or gallium. The method additionally includes consolidating the powder to form an optically transparent ceramic, and applying at least one thermodynamic process condition during the consolidating to reduce oxygen and/or thermodynamically reversible defects in the ceramic. In another embodiment, a scintillator includes (GdY)x(GaAl)OD, where a is from about 0.05-2, b is from about 1-3, x is from about 2.8-3.2, y is from about 4.8-5.2, c is from about 0.003-0.3, and D is a dopant, and where the scintillator is an optically transparent ceramic scintillator having physical characteristics of being formed from a ceramic powder consolidated in oxidizing atmospheres. 1. A method , comprising:{'sub': h', 'i', 'j', '12, 'forming a powder comprising a composition with the formula: ABCO, wherein h is 3±10%, i is 2±10%, and j is 3±10%, wherein A includes one or more rare earth elements, B includes aluminum and/or gallium, and C includes aluminum and/or gallium;'}consolidating the powder to form an optically transparent ceramic;applying at least one thermodynamic process condition during the consolidating to reduce oxygen related defects and/or thermodynamically reversible defects in the ceramic; andannealing the optically transparent ceramic in an oxygen containing atmosphere at a temperature ranging from about 1000° C. to about 1900° C.2. The method as recited in claim 1 , wherein A is selected from the group consisting of: yttrium claim 1 , gadolinium claim 1 , lutetium claim 1 , lanthanum claim 1 , terbium claim 1 , praseodymium claim 1 , neodymium claim 1 , cerium claim 1 , samarium claim 1 , europium claim 1 , dysprosium claim 1 , holmium claim 1 , erbium claim 1 , ytterbium claim 1 , and combinations thereof.3. The method as ...

Подробнее
Номер записи: 3
17-07-2018 дата публикации

Scintillators having the K2PtCl6 crystal structure

Номер: US0010024982B2
Автор: Stephen A. Payne, Nerine Cherepy, Arnold Burger, PAYNE STEPHEN A, CHEREPY NERINE, BURGER ARNOLD, Payne, Stephen A., Cherepy, Nerine, Burger, Arnold
Принадлежит: LAWRENCE LIVERMORE NATIONAL SECURITY, LLC, FISK UNIVERSITY, L LIVERMORE NAT SECURITY LLC, FISK UNIV, Lawrence Livermore National Security, LLC, Fisk University

According to one embodiment, a scintillator includes a host material having the chemical formula: A2BX6, where A includes a monovalent ion, B includes a tetravalent ion, and X includes a halide ion.

Подробнее
Номер записи: 4
30-01-2014 дата публикации

PLASTIC SCINTILLATOR WITH EFFECTIVE PULSE SHAPE DISCRIMINATION FOR NEUTRON AND GAMMA DETECTION

Номер: US20140027646A1
Автор: Natalia P. Zaitseva, M Leslie Carman, Nerine Cherepy, Andrew M. Glenn, Sebastien Hamel, Stephen A. Payne, Benjamin L. Rupert, ZAITSEVA NATALIA P, CARMAN M LESLIE, CHEREPY NERINE, GLENN ANDREW M, HAMEL SEBASTIEN, PAYNE STEPHEN A, RUPERT BENJAMIN L, ZAITSEVA NATALIA P., GLENN ANDREW M., PAYNE STEPHEN A., RUPERT BENJAMIN L.
Принадлежит: LAWRENCE LIVERMORE NATIONAL SECURITY, LLC

In one embodiment, a scintillator material includes a polymer matrix; and a primary dye in the polymer matrix, the primary dye being a fluorescent dye, the primary dye being present in an amount of 5 wt % or more; wherein the scintillator material exhibits an optical response signature for neutrons that is different than an optical response signature for gamma rays. In another embodiment, a scintillator material includes a polymer matrix; and a primary dye in the polymer matrix, the primary dye being a fluorescent dye, the primary dye being present in an amount greater than 10 wt %.

Подробнее
Номер записи: 5
02-01-2024 дата публикации

Systems and methods for fluoride ceramic phosphors for LED lighting

Номер: US0011862758B2
Автор: Nerine Cherepy, Ross Allen Osborne, Stephen A. Payne, Zachary Seeley, Alok Srivastava, William Winder Beers, William Erwin Cohen
Принадлежит: Lawrence Livermore National Security, LLC, Current Lighting Solutiosn, LLC

The present disclosure relates to a lighting component which may comprise a light emitting diode (LED) or laser diode (LD) for generating at least one of blue light or ultraviolet light. A fluoride phosphor matrix may be included, which may be consolidated into a phosphor ceramic structure including at least one of a transparent fluoride ceramic structure or a translucent fluoride ceramic structure, and positioned adjacent to the LED or LD. The phosphor ceramic structure generates at least one of red or orange light when irradiated by the light emitted from the LED or LD. The phosphor ceramic structure exhibits reduced thermal quenching relative to a fluoride particulate structure irradiated by the LED or LD.

Подробнее
Номер записи: 6
13-04-2023 дата публикации

TRANSPARENT CERAMICS FABRICATED BY MATERIAL JET PRINTING

Номер: US20230110835A1
Автор: Zachary Seeley, Nerine Cherepy, Alexander Drobshoff, Stephen Anthony Payne, Ian Robert Phillips, Thomas John Rudzik
Принадлежит: Lawrence Livermore National Security LLC

A method for forming a transparent ceramic, in accordance with one embodiment, includes forming a green body by material jetting an ink, and processing the green body to form the ceramic to transparency. A product, in accordance with one embodiment, includes an ink for forming a transparent ceramic. The ink is physically characterized as having a density, surface tension, and viscosity configured to enable material jetting of the ink in contained, sequential droplets having a volume in the range of about 1 picoliter to about 1 nanoliter when jetted from a nozzle having an inner diameter in the range of about 10 microns to about 300 microns. A product, in accordance with another embodiment, includes a transparent ceramic, at least a portion of the transparent ceramic having layers of less than 50 microns per layer with physical characteristics of formation by material jetting.

Подробнее
Номер записи: 7
30-06-2016 дата публикации

PLASTIC SCINTILLATOR WITH EFFECTIVE PULSE SHAPE DISCRIMINATION FOR NEUTRON AND GAMMA DETECTION

Номер: US20160186052A1
Автор: Natalia P. Zaitseva, M Leslie Carman, Nerine Cherepy, Andrew M. Glenn, Sebastien Hamel, Stephen A. Payne, Benjamin L. Rupert, ZAITSEVA NATALIA P, CARMAN M LESLIE, CHEREPY NERINE, GLENN ANDREW M, HAMEL SEBASTIEN, PAYNE STEPHEN A, RUPERT BENJAMIN L, ZAITSEVA NATALIA P., GLENN ANDREW M., PAYNE STEPHEN A., RUPERT BENJAMIN L.
Принадлежит:

In one embodiment, a scintillator material includes a polymer matrix; and a primary dye in the polymer matrix, the primary dye being a fluorescent dye, the primary dye being present in an amount of 5 wt % or more; wherein the scintillator material exhibits an optical response signature for neutrons that is different than an optical response signature for gamma rays. In another embodiment, a scintillator material includes a polymer matrix comprising at least one of: polyvinyl xylene (PVX); polyvinyl diphenyl; and polyvinyl tetrahydronaphthalene; and a primary dye in the polymer matrix, the primary dye being a fluorescent dye, the primary dye being present in an amount greater than 10 wt %. A total loading of dye in the scintillator material is sufficient to cause the scintillator material to exhibit a pulse-shape discrimination (PSD) figure of merit (FOM) of about at least 2.0. 1. A scintillator material comprising:a polymer matrix; anda primary dye in the polymer matrix, the primary dye being a fluorescent dye, the primary dye being present in an amount of 5 wt % or more; andwherein the scintillator material exhibits an optical response signature for neutrons that is different than an optical response signature for gamma rays.2. The scintillator material of claim 1 , wherein the primary dye is present in an amount of 50 wt % or more.3. The scintillator material of claim 1 , wherein the primary dye is present in an amount ranging from about 50 wt % to about 75 wt %.4. The scintillator material of claim 1 , wherein the polymer matrix comprises at least one polymer selected from a group consisting of: polyvinyl xylene (PVX); polyvinyl diphenyl; and polyvinyl tetrahydronaphthalene.5. The scintillator material of claim 1 , further comprising a secondary dye having a longer emission wavelength than the primary dye.6. The scintillator material of claim 5 , wherein the secondary dye comprises 1 claim 5 ,4-bis(2-methylstyryl)benzene (Bis-MSB); andwherein the secondary dye is ...

Подробнее
Номер записи: 8
12-01-2016 дата публикации

Plastic scintillators with high loading of one or more metal carboxylates

Номер: US0009234968B1
Автор: Nerine Cherepy, Robert Dean Sanner, CHEREPY NERINE, SANNER ROBERT DEAN
Принадлежит: Lawrence Livermore National Security, LLC, L LIVERMORE NAT SECURITY LLC, LAWRENCE LIVERMORE NATIONAL SECURITY, LLC

In one embodiment, a material includes at least one metal compound incorporated into a polymeric matrix, where the metal compound includes a metal and one or more carboxylate ligands, where at least one of the one or more carboxylate ligands includes a tertiary butyl group, and where the material is optically transparent. In another embodiment, a method includes: processing pulse traces corresponding to light pulses from a scintillator material; and outputting a result of the processing, where the scintillator material comprises at least one metal compound incorporated into a polymeric matrix, the at least one metal compound including a metal and one or more carboxylate ligands, where at least one of the one or more carboxylate ligands has a tertiary butyl group, and where the scintillator material is optically transparent and has an energy resolution at 662 keV of less than about 20%.

Подробнее
Номер записи: 9
09-02-2017 дата публикации

SCINTILLATORS HAVING THE K2PTCL6 CRYSTAL STRUCTURE

Номер: US20170038483A1
Автор: Stephen A. Payne, Nerine Cherepy, Arnold Burger, PAYNE STEPHEN A, CHEREPY NERINE, BURGER ARNOLD, Payne Stephen A., Cherepy Nerine, Burger Arnold
Принадлежит:

According to one embodiment, a scintillator includes a host material having the chemical formula: ABX, where A includes a monovalent ion, B includes a tetravalent ion, and X includes a halide ion. 1. A scintillator comprising:{'sub': 2', '6, 'a host material having the chemical formula: ABX, wherein A includes a monovalent ion, B includes a tetravalent ion, and X includes a halide ion.'}2. The scintillator as recited in claim 1 , wherein A is selected from the group consisting of: Li claim 1 , Na claim 1 , K claim 1 , Rb claim 1 , and Cs.3. The scintillator as recited in claim 1 , wherein B is selected from the group consisting of: Ti claim 1 , Zr claim 1 , Hf claim 1 , Sn claim 1 , Se claim 1 , and Te.4. The scintillator as recited in claim 1 , wherein X is selected from the group consisting of: Cl claim 1 , Br claim 1 , and I.5. The scintillator as recited in claim 1 , wherein the scintillator exhibit an optical response for at least one of: thermal neutrons claim 1 , fast neutrons and gamma rays.6. The scintillator as recited in claim 1 , wherein the scintillator has an energy resolution at 662 keV of about 4% or less.7. The scintillator as recited in claim 1 , wherein the host material further comprises at least one activator ion selected from the group consisting of: Tl claim 1 , Cu claim 1 , Ag claim 1 , Au claim 1 , Pb claim 1 , Bi claim 1 , In claim 1 , Sn claim 1 , Sb claim 1 , Ce claim 1 , Pr claim 1 , Eu claim 1 , Yb claim 1 , Nb claim 1 , Ta claim 1 , W claim 1 , and combinations thereof8. The scintillator as recited in claim 1 , wherein the host material further comprises at least one additional cation dopant selected from the group consisting of: Li claim 1 , Na claim 1 , K claim 1 , Rb claim 1 , Cs claim 1 , Mg claim 1 , Zn claim 1 , Ca claim 1 , Sr claim 1 , Ba; La claim 1 , Gd claim 1 , Lu claim 1 , Al claim 1 , Ga claim 1 , In claim 1 , Si claim 1 , Ge claim 1 , Sn claim 1 , Ti claim 1 , Zr claim 1 , Hf claim 1 , and combinations thereof; wherein ...

Подробнее
Номер записи: 10
30-07-2019 дата публикации

High density fast phosphor for electron microscopy

Номер: US0010364390B2
Автор: Edward Michael James, Colin Geoffrey Trevor, Joseph Webster, David Joyce, Nerine Cherepy, Steven A. Payne, Zachary M. Seeley, JAMES EDWARD MICHAEL, TREVOR COLIN GEOFFREY, WEBSTER JOSEPH, JOYCE DAVID, CHEREPY NERINE, PAYNE STEVEN A, SEELEY ZACHARY M, James, Edward Michael, Trevor, Colin Geoffrey, Webster, Joseph, Joyce, David, Cherepy, Nerine, Payne, Steven A., Seeley, Zachary M.
Принадлежит: Gatan, Inc., Lawrence Livermore National Secutity, LLC, GATAN INC, LAWRENCE LIVERMORE NAT SECUTITY LLC

A fast-decaying, dense phosphor having relatively high light emission is described. Through a combination of material selection, growth and deposition technique, phosphor thin films are made that preserve the necessary light output when used in thin-films, unlike common fast phosphors, such as P-46, P-47, and also have an afterglow that decays much faster than common bright phosphors, such as P-43. Use of the phosphor is described in applications where acquiring many frames/images very quickly is required.

Подробнее
Номер записи: 11
03-11-2022 дата публикации

INDIRECT CONVERSION NUCLEAR BATTERY USING TRANSPARENT SCINTILLATOR MATERIAL

Номер: US20220350039A1
Автор: Joshua Jarrell, Nerine Cherepy, John Winter Murphy, Rebecca J. Nikolic, Erik Lars Swanberg, JR.
Принадлежит:

A product includes a transparent scintillator material, a beta emitter material having an end-point energy of greater than 225 kiloelectron volts (keV), and a photovoltaic portion configured to convert light emitted by the scintillator material to electricity. A thickness the scintillator material is sufficient to protect the photovoltaic portion from significant radiation damage. 1. A product , comprising:a transparent scintillator material;a beta emitter material having an end-point energy of greater than 225 kiloelectron volts (keV); anda photovoltaic portion configured to convert light emitted by the scintillator material to electricity,wherein a thickness the scintillator material is sufficient to protect the photovoltaic portion from significant radiation damage.2. The product as recited in claim 1 , wherein the scintillator material is in the form of a ceramic.3. The product as recited in claim 1 , wherein the scintillator material is in the form of a single crystal material.4. The product as recited in claim 1 , wherein the scintillator material exhibits a light output of greater than about 30 claim 1 ,000 photons per megaelectron volt (MeV).5. The product as recited in claim 1 , wherein the scintillator material is characterized as not exhibiting a significant degradation of light output under continuous exposure to radiation energy at 1 megaelectron volt (MeV) to a dose of at least 1 gigarad for a duration of one year.6. The product as recited in claim 1 , wherein at least some of the scintillator material includes an activator.7. The product as recited in claim 1 , wherein the beta emitter material has an average radiation energy of less than about 1 MeV.8. The product as recited in claim 1 , wherein at least some of the beta emitter material is intermixed with the scintillator material.9. The product as recited in claim 8 , wherein the at least some of the beta emitter material is homogeneously intermixed with the scintillator material.10. The product as ...

Подробнее
Номер записи: 12
30-05-2019 дата публикации

HIGH DENSITY FAST PHOSPHOR FOR ELECTRON MICROSCOPY

Номер: US20190161676A1
Автор: Edward Michael James, Colin Geoffrey Trevor, Joseph Webster, David Joyce, Nerine Cherepy, Steven A. Payne, Zachary M. Seeley, JAMES EDWARD MICHAEL, TREVOR COLIN GEOFFREY, WEBSTER JOSEPH, JOYCE DAVID, CHEREPY NERINE, PAYNE STEVEN A, SEELEY ZACHARY M, James, Edward Michael, Trevor, Colin Geoffrey, Webster, Joseph, Joyce, David, Cherepy, Nerine, Payne, Steven A., Seeley, Zachary M.
Принадлежит: Gatan Inc, Lawrence Livermore National Security LLC

A fast-decaying, dense phosphor having relatively high light emission is described. Through a combination of material selection, growth and deposition technique, phosphor thin films are made that preserve the necessary light output when used in thin-films, unlike common fast phosphors, such as P-46, P-47, and also have an afterglow that decays much faster than common bright phosphors, such as P-43. Use of the phosphor is described in applications where acquiring many frames/images very quickly is required.

Подробнее
Номер записи: 13
28-03-2013 дата публикации

LUTETIUM OXIDE-BASED TRANSPARENT CERAMIC SCINTILLATORS

Номер: US20130075628A1
Автор: Zachary Seeley, Nerine Cherepy, Joshua Kuntz, Stephen A. Payne
Принадлежит: LAWRENCE LIVERMORE NATIONAL SECURITY, LLC

In one embodiment, a transparent ceramic of sintered nanoparticles includes gadolinium lutetium oxide doped with europium having a chemical composition (LuGd)EuO, where X is any value within a range from about 0.05 to about 0.45 and Y is any value within a range from about 0.01 to about 0.2, and where the transparent ceramic exhibits a transparency characterized by a scatter coefficient of less than about 10%/cm. In another embodiment, a transparent ceramic scintillator of sintered nanoparticles, includes a body of sintered nanoparticles including gadolinium lutetium oxide doped with a rare earth activator (RE) having a chemical composition (LuGd)REO, where RE is selected from the group consisting of: Sm, Eu, Tb, and Dy, where the transparent ceramic exhibits a transparency characterized by a scatter coefficient of less than about 10%/cm. 1. A transparent ceramic of sintered nanoparticles , the transparent ceramic comprising: gadolinium lutetium oxide doped with europium having a chemical composition (LuGd)EuO ,wherein X is any value within a range from about 0.05 to about 0.45, andwherein Y is any value within a range from about 0.01 to about 0.2,wherein the transparent ceramic exhibits a transparency characterized by a scatter coefficient of less than about 10%/cm.2. The transparent ceramic as recited in claim 1 , wherein Y is any value within a range from about 0.04 to about 0.15.3. The transparent ceramic as recited in claim 1 , wherein X is any value within a range from about 0.05 to about 0.30.4. The transparent ceramic as recited in claim 1 , wherein X is about 0.15 claim 1 , wherein Y is about 0.06.5. The transparent ceramic as recited in claim 1 , wherein the transparent ceramic is characterized by having substantially no residual porosity claim 1 ,wherein the transparent ceramic consists essentially of grain structures being characterized by a primary phase, andwherein the primary phase is characterized as a cubic phase.6. The transparent ceramic as ...

Подробнее
Номер записи: 14
12-04-2016 дата публикации

Plastic scintillator with effective pulse shape discrimination for neutron and gamma detection

Номер: US0009309456B2
Автор: Natalia P. Zaitseva, M Leslie Carman, Nerine Cherepy, Andrew M. Glenn, Sebastien Hamel, Stephen A. Payne, Benjamin L. Rupert, ZAITSEVA NATALIA P, CARMAN M LESLIE, CHEREPY NERINE, GLENN ANDREW M, HAMEL SEBASTIEN, PAYNE STEPHEN A, RUPERT BENJAMIN L, ZAITSEVA NATALIA P., GLENN ANDREW M., PAYNE STEPHEN A., RUPERT BENJAMIN L.
Принадлежит: Lawrence Livermore National Security, LLC, ZAITSEVA NATALIA P, CARMAN M LESLIE, CHEREPY NERINE, GLENN ANDREW M, HAMEL SEBASTIEN, PAYNE STEPHEN A, RUPERT BENJAMIN L, L LIVERMORE NAT SECURITY LLC, ZAITSEVA NATALIA P., GLENN ANDREW M., PAYNE STEPHEN A., RUPERT BENJAMIN L., LAWRENCE LIVERMORE NATIONAL SECURITY, LLC

In one embodiment, a scintillator material includes a polymer matrix; and a primary dye in the polymer matrix, the primary dye being a fluorescent dye, the primary dye being present in an amount of 5 wt % or more; wherein the scintillator material exhibits an optical response signature for neutrons that is different than an optical response signature for gamma rays. In another embodiment, a scintillator material includes a polymer matrix; and a primary dye in the polymer matrix, the primary dye being a fluorescent dye, the primary dye being present in an amount greater than 10 wt %.

Подробнее
Номер записи: 15
21-04-2022 дата публикации

INDIRECT CONVERSION NUCLEAR BATTERY USING TRANSPARENT SCINTILLATOR MATERIAL

Номер: US20220120920A1
Автор: Joshua Jarrell, Nerine Cherepy, John Winter Murphy, Rebecca J. Nikolic, Erik Lars Swanberg, JR.
Принадлежит: Lawrence Livermore National Security LLC

A product includes a transparent scintillator material, a beta emitter material having an end-point energy of greater than 225 kiloelectron volts (keV), and a photovoltaic portion configured to convert light emitted by the scintillator material to electricity.

Подробнее
Номер записи: 16
24-01-2012 дата публикации

Carbon fuel particles used in direct carbon conversion fuel cells

Номер: US0008101305B2
Автор: John F. Cooper, Nerine Cherepy, COOPER JOHN F, CHEREPY NERINE, COOPER JOHN F.
Принадлежит: Lawrence Livermore National Security, LLC, COOPER JOHN F, CHEREPY NERINE, L LIVERMORE NAT SECURITY LLC, COOPER JOHN F., LAWRENCE LIVERMORE NATIONAL SECURITY, LLC

A system for preparing particulate carbon fuel and using the particulate carbon fuel in a fuel cell. Carbon particles are finely divided. The finely dividing carbon particles are introduced into the fuel cell. A gas containing oxygen is introduced into the fuel cell. The finely divided carbon particles are exposed to carbonate salts, or to molten NaOH or KOH or LiOH or mixtures of NaOH or KOH or LiOH, or to mixed hydroxides, or to alkali and alkaline earth nitrates.

Подробнее
Номер записи: 17
19-06-2018 дата публикации

Transparent ceramic garnet scintillator detector for positron emission tomography

Номер: US0010000698B2
Автор: Nerine Cherepy, Stephen A. Payne, Zachary Seeley, Peter Carl Cohen, Mark S. Andreaco, Matthias J. Schmand, CHEREPY NERINE, PAYNE STEPHEN A, SEELEY ZACHARY, COHEN PETER CARL, ANDREACO MARK S, SCHMAND MATTHIAS J, Cherepy, Nerine, Payne, Stephen A., Seeley, Zachary, Cohen, Peter Carl, Andreaco, Mark S., Schmand, Matthias J.
Принадлежит: Lawrence Livermore National Security, LLC, L LIVERMORE NAT SECURITY LLC, SIEMENS MEDICAL SOLUTIONS USA INC, Siemens Medical Solutions USA, Inc.

In one embodiment, a method includes forming a powder having a composition with the formula: AhBiCjO12, where h is 3±10%, i is 2±10%, j is 3±10%, A includes one or more rare earth elements, B includes aluminum and/or gallium, and C includes aluminum and/or gallium. The method additionally includes consolidating the powder to form an optically transparent ceramic, and applying at least one thermodynamic process condition during the consolidating to reduce oxygen and/or thermodynamically reversible defects in the ceramic. In another embodiment, a scintillator includes (Gd3-a-cYa)x(Ga5-bAlb)yO12Dc, where a is from about 0.05-2, b is from about 1-3, x is from about 2.8-3.2, y is from about 4.8-5.2, c is from about 0.003-0.3, and D is a dopant, and where the scintillator is an optically transparent ceramic scintillator having physical characteristics of being formed from a ceramic powder consolidated in oxidizing atmospheres.

Подробнее
Номер записи: 18
11-12-2014 дата публикации

BARIUM IODIDE AND STRONTIUM IODIDE CRYSTALS AND SCINTILLATORS IMPLEMENTING THE SAME

Номер: US20140361221A1
Автор: Stephen A. Payne, Nerine Cherepy, Christian Pedrini, Arnold Burger, PAYNE STEPHEN A, CHEREPY NERINE, PEDRINI CHRISTIAN, BURGER ARNOLD, PAYNE STEPHEN A.
Принадлежит: FISK UNIVERSITY, Lawrence Livermore National Security, LLC

In one embodiment, a crystal includes at least one metal halide; and an activator dopant comprising ytterbium. In another general embodiment, a scintillator optic includes: at least one metal halide doped with a plurality of activators, the plurality of activators comprising: a first activator comprising europium, and a second activator comprising ytterbium. In yet another general embodiment, a method for manufacturing a crystal suitable for use in a scintillator includes mixing one or more salts with a source of at least one dopant activator comprising ytterbium; heating the mixture above a melting point of the salt(s); and cooling the heated mixture to a temperature below the melting point of the salts. Additional materials, systems, and methods are presented. 1. A crystal , comprising at least one metal halide; and an activator dopant comprising ytterbium.2. The crystal of claim 1 , wherein the metal halide comprises an alkaline earth metal.3. The crystal of claim 2 , wherein the alkaline earth metal comprises an element selected from a group consisting of strontium claim 2 , barium and calcium.4. The crystal of claim 2 , wherein the halide comprises iodine.5. The crystal of claim 1 , wherein the metal comprises an alkali metal.6. The crystal of claim 5 , wherein the alkali metal comprises cesium.7. The crystal of claim 5 , wherein the halide comprises iodine.8. The crystal of claim I claim 5 , wherein the dopant is present in an amount ranging from between about 0.5% and about 10.0%.9. The crystal of claim 1 , wherein the ytterbium is primarily Yb.10. The crystal of claim 1 , further comprising at least one additional metal halide.11. The crystal of claim 10 , wherein the additional metal halide is selected from a group consisting of a strontium halide claim 10 , a barium halide and a calcium halide.12. The crystal of claim I claim 10 , further comprising at least one additional activator dopant claim 10 , wherein the additional activator dopant excludes ...

Подробнее
Номер записи: 19
14-04-2016 дата публикации

PLASTIC SCINTILLATORS WITH HIGH LOADING OF ONE OR MORE METAL CARBOXYLATES

Номер: US20160102247A1
Автор: Nerine Cherepy, Robert Dean Sanner
Принадлежит:

According to one embodiment, a method includes incorporating a metal carboxylate complex into a polymeric matrix to form an optically transparent material. According to another embodiment, a material includes at least one metal carboxylate complex incorporated into a polymeric matrix, where the material is optically transparent. 1. A method , comprising:incorporating a metal carboxylate complex into a polymeric matrix to form an optically transparent material.2. The method as recited in claim 1 , wherein the metal carboxylate complex comprises a metal and at least one carboxylate ligand comprising a tertiary butyl group.3. The method as recited in claim 2 , wherein the carboxylate ligand comprising the tertiary butyl group includes pivalate.4. The method as recited in claim 3 , wherein the metal comprises bismuth.5. The method as recited in claim 3 , wherein the metal comprises lithium.6. The method as recited in claim 3 , further comprising forming the metal carboxylate complex claim 3 , wherein forming the metal carboxylate complex includes combining pivalic acid with a precursor compound comprising the metal.7. The method as recited in claim 1 , wherein the metal carboxylate complex is chemically incorporated into the polymeric matrix.8. The method as recited in claim 1 , wherein incorporating the metal carboxylate complex into the polymeric matrix includes at least one of: copolymerization claim 1 , and crosslinking.9. The method as recited in claim 8 , wherein the material comprises at least one of: a polymerization initiator and a cross-linker.10. The method as recited in claim 1 , wherein the polymeric matrix comprises at least one of: poly-styrene claim 1 , poly-vinyltoluene claim 1 , poly-vinyltriphenylamine claim 1 , poly(ethylene-2 claim 1 ,6-naphthalene dicarboxylate) claim 1 , poly(ethylene terephthalate) claim 1 , polymethylmethacrylate claim 1 , functionalized polymethacrylate claim 1 , methacrylic acid and poly-9-vinylcarbazole.11. The method as ...

Подробнее
Номер записи: 20
06-11-2008 дата публикации

Carbon Fuel Particles Used In Direct Carbon Conversion Fuel Cells

Номер: US20080274382A1
Автор: John F. Cooper, Nerine Cherepy
Принадлежит:

A system for preparing particulate carbon fuel and using the particulate carbon fuel in a fuel cell. Carbon particles are finely divided. The finely dividing carbon particles are introduced into the fuel cell. A gas containing oxygen is introduced into the fuel cell. The finely divided carbon particles are exposed to carbonate salts, or to molten NaOH or KOH or LiOH or mixtures of NaOH or KOH or LiOH, or to mixed hydroxides, or to alkali and alkaline earth nitrates.

Подробнее
Номер записи: 21
13-09-2016 дата публикации

Barium iodide and strontium iodide crystals and scintillators implementing the same

Номер: US0009441154B2
Автор: Stephen A. Payne, Nerine Cherepy, Christian Pedrini, Arnold Burger, PAYNE STEPHEN A, CHEREPY NERINE, PEDRINI CHRISTIAN, BURGER ARNOLD, Payne Stephen A., Cherepy Nerine, Pedrini Christian, Burger Arnold
Принадлежит: Lawrence Livermore National Security, LLC, Fisk University, L LIVERMORE NAT SECURITY LLC, FISK UNIV, FISK UNIVERSITY

In one embodiment, a crystal includes at least one metal halide; and an activator dopant comprising ytterbium. In another general embodiment, a scintillator optic includes: at least one metal halide doped with a plurality of activators, the plurality of activators comprising: a first activator comprising europium, and a second activator comprising ytterbium. In yet another general embodiment, a method for manufacturing a crystal suitable for use in a scintillator includes mixing one or more salts with a source of at least one dopant activator comprising ytterbium; heating the mixture above a melting point of the salt(s); and cooling the heated mixture to a temperature below the melting point of the salts. Additional materials, systems, and methods are presented.

Подробнее
Номер записи: 22
12-04-2012 дата публикации

CARBON FUEL PARTICLES USED IN DIRECT CARBON CONVERSION FUEL CELLS

Номер: US20120088165A1
Автор: John F. Cooper, Nerine Cherepy, COOPER JOHN F, CHEREPY NERINE, COOPER JOHN F.
Принадлежит: Lawrence Livermore National Security, LLC

A system for preparing particulate carbon fuel and using the particulate carbon fuel in a fuel cell. Carbon particles are finely divided. The finely dividing carbon particles are introduced into the fuel cell. A gas containing oxygen is introduced into the fuel cell. The finely divided carbon particles are exposed to carbonate salts, or to molten NaOH or KOH or LiOH or mixtures of NaOH or KOH or LiOH, or to mixed hydroxides, or to alkali and alkaline earth nitrates.

Подробнее
Номер записи: 23
09-11-2004 дата публикации

Fuel cell apparatus and method thereof

Номер: US0006815105B2
Автор: John F. Cooper, Roger Krueger, Nerine Cherepy, COOPER JOHN F, KRUEGER ROGER, CHEREPY NERINE
Принадлежит: The Regents of the University of California, UNIV CALIFORNIA

Highly efficient carbon fuels, exemplary embodiments of a high temperature, molten electrolyte electrochemical cell are capable of directly converting ash-free carbon fuel to electrical energy. Ash-free, turbostratic carbon particles perform at high efficiencies in certain direct carbon conversion cells.

Подробнее
Номер записи: 24
08-08-2002 дата публикации

Fuel cell apparatus and method thereof

Номер: US20020106549A1
Автор: John Cooper, Roger Krueger, Nerine Cherepy
Принадлежит: The Regents of the University of California

Highly efficient carbon fuels, exemplary embodiments of a high temperature, molten electrolyte electrochemical cell are capable of directly converting ash-free carbon fuel to electrical energy. Ash-free, turbostratic carbon particles perform at high efficiencies in certain direct carbon conversion cells.

Подробнее
Номер записи: 25
16-08-2011 дата публикации

Carbon fuel particles used in direct carbon conversion fuel cells

Номер: US0007998627B2
Автор: John F. Cooper, Nerine Cherepy, COOPER JOHN F, CHEREPY NERINE, COOPER JOHN F.
Принадлежит: Lawrence Livermore National Security, LLC, L LIVERMORE NAT SECURITY LLC, LAWRENCE LIVERMORE NATIONAL SECURITY, LLC

A system for preparing particulate carbon fuel and using the particulate carbon fuel in a fuel cell. Carbon particles are finely divided. The finely dividing carbon particles are introduced into the fuel cell. A gas containing oxygen is introduced into the fuel cell. The finely divided carbon particles are exposed to carbonate salts, or to molten NaOH or KOH or LiOH or mixtures of NaOH or KOH or LiOH, or to mixed hydroxides, or to alkali and alkaline earth nitrates.

Подробнее
Номер записи: 26
09-10-2012 дата публикации

Carbon fuel particles used in direct carbon conversion fuel cells

Номер: US0008283078B2
Автор: John F. Cooper, Nerine Cherepy, COOPER JOHN F, CHEREPY NERINE, COOPER JOHN F.
Принадлежит: Lawrence Livermore National Security, LLC, COOPER JOHN F, CHEREPY NERINE, L LIVERMORE NAT SECURITY LLC, COOPER JOHN F., LAWRENCE LIVERMORE NATIONAL SECURITY, LLC

A system for preparing particulate carbon fuel and using the particulate carbon fuel in a fuel cell. Carbon particles are finely divided. The finely dividing carbon particles are introduced into the fuel cell. A gas containing oxygen is introduced into the fuel cell. The finely divided carbon particles are exposed to carbonate salts, or to molten NaOH or KOH or LiOH or mixtures of NaOH or KOH or LiOH, or to mixed hydroxides, or to alkali and alkaline earth nitrates.

Подробнее
Номер записи: 27
17-04-2008 дата публикации

Fabrication of transparent ceramics using nanoparticles

Номер: US20080090716A1
Автор: Nerine Cherepy, Thomas Tillotson, Joshua Kuntz, Stephen Payne
Принадлежит: The Regents of the University of California

A method of fabrication of a transparent ceramic using nanoparticles synthesized via organic acid complexation-combustion includes providing metal salts, dissolving said metal salts to produce an aqueous salt solution, adding an organic chelating agent to produce a complexed-metal sol, heating said complexed-metal sol to produce a gel, drying said gel to produce a powder, combusting said powder to produce nano-particles, calcining said nano-particles to produce oxide nano-particles, forming said oxide nano-particles into a green body, and sintering said green body to produce the transparent ceramic.

Подробнее
Номер записи: 28
12-04-2005 дата публикации

Tilted fuel cell apparatus

Номер: US0006878479B2
Автор: John F. Cooper, Nerine Cherepy, Roger L. Krueger, COOPER JOHN F, CHEREPY NERINE, KRUEGER ROGER L, COOPER JOHN F., KRUEGER ROGER L.
Принадлежит: The Regents of the University of California, UNIV CALIFORNIA, THE REGENTS OF THE UNIVERSITY OF CALIFORNIA

Bipolar, tilted embodiments of high temperature, molten electrolyte electrochemical cells capable of directly converting carbon fuel to electrical energy are disclosed herein. The bipolar, tilted configurations minimize the electrical resistance between one cell and others connected in electrical series. The tilted configuration also allows continuous refueling of carbon fuel.

Подробнее
Номер записи: 29
20-09-2016 дата публикации

Plastic scintillators with high loading of one or more metal carboxylates

Номер: US0009447318B2
Автор: Nerine Cherepy, Robert Dean Sanner, CHEREPY NERINE, SANNER ROBERT DEAN, Cherepy Nerine, Sanner Robert Dean
Принадлежит: Lawrence Livermore National Security, LLC, L LIVERMORE NAT SECURITY LLC

According to one embodiment, a method includes incorporating a metal carboxylate complex into a polymeric matrix to form an optically transparent material. According to another embodiment, a material includes at least one metal carboxylate complex incorporated into a polymeric matrix, where the material is optically transparent.

Подробнее
Номер записи: 30
23-01-2003 дата публикации

Tilted fuel cell apparatus

Номер: US20030017380A1
Автор: John Cooper, Nerine Cherepy, Roger Krueger
Принадлежит: The Regents of the University of California

Bipolar, tilted embodiments of high temperature, molten electrolyte electrochemical cells capable of directly converting carbon fuel to electrical energy are disclosed herein. The bipolar, tilted configurations minimize the electrical resistance between one cell and others connected in electrical series. The tilted configuration also allows continuous refueling of carbon fuel.

Подробнее
Номер записи: 31
14-07-2011 дата публикации

CARBON FUEL PARTICLES USED IN DIRECT CARBON CONVERSION FUEL CELLS

Номер: US20110171545A1
Автор: John F. Cooper, Nerine Cherepy, COOPER JOHN F, CHEREPY NERINE, COOPER JOHN F.
Принадлежит: Lawrence Livermore National Security, LLC.

A system for preparing particulate carbon fuel and using the particulate carbon fuel in a fuel cell. Carbon particles are finely divided. The finely dividing carbon particles are introduced into the fuel cell. A gas containing oxygen is introduced into the fuel cell. The finely divided carbon particles are exposed to carbonate salts, or to molten NaOH or KOH or LiOH or mixtures of NaOH or KOH or LiOH, or to mixed hydroxides, or to alkali and alkaline earth nitrates.

Подробнее
Номер записи: 32
19-01-2016 дата публикации

Lutetium oxide-based transparent ceramic scintillators

Номер: US0009238773B2
Автор: Zachary Seeley, Nerine Cherepy, Joshua Kuntz, Stephen A. Payne, SEELEY ZACHARY, CHEREPY NERINE, KUNTZ JOSHUA, PAYNE STEPHEN A, PAYNE STEPHEN A.
Принадлежит: Lawrence Livermore National Security, LLC, L LIVERMORE NAT SECURITY LLC, LAWRENCE LIVERMORE NATIONAL SECURITY, LLC

In one embodiment, a transparent ceramic of sintered nanoparticles includes gadolinium lutetium oxide doped with europium having a chemical composition (Lu1-xGdx)2-YEuYO3, where X is any value within a range from about 0.05 to about 0.45 and Y is any value within a range from about 0.01 to about 0.2, and where the transparent ceramic exhibits a transparency characterized by a scatter coefficient of less than about 10%/cm. In another embodiment, a transparent ceramic scintillator of sintered nanoparticles, includes a body of sintered nanoparticles including gadolinium lutetium oxide doped with a rare earth activator (RE) having a chemical composition (Lu1-xGdx)2-YREYO3, where RE is selected from the group consisting of: Sm, Eu, Tb, and Dy, where the transparent ceramic exhibits a transparency characterized by a scatter coefficient of less than about 10%/cm.

Подробнее
Номер записи: 33
09-02-2006 дата публикации

Carbon aerogel and xerogel fuels for fuel cells and batteries

Номер: US20060029857A1
Автор: Nerine Cherepy, Alan Jankowski, Thomas Tillotson, Kyle Fiet
Принадлежит: The Regents of the University of California

A fuel cell or battery comprises a fuel cell or battery having an anode component. The anode component comprises an aerogel or xerogel.

Подробнее
Номер записи: 34
21-10-2008 дата публикации

Carbon fuel particles used in direct carbon conversion fuel cells

Номер: US0007438987B2
Автор: John F. Cooper, Nerine Cherepy, COOPER JOHN F, CHEREPY NERINE, COOPER JOHN F.
Принадлежит: Lawrence Livermore National Security, LLC, L LIVERMORE NAT SECURITY LLC, LAWRENCE LIVERMORE NATIONAL SECURITY, LLC

A system for preparing particulate carbon fuel and using the particulate carbon fuel in a fuel cell. Carbon particles are finely divided. The finely dividing carbon particles are introduced into the fuel cell. A gas containing oxygen is introduced into the fuel cell. The finely divided carbon particles are exposed to carbonate salts, or to molten NaOH or KOH or LiOH or mixtures of NaOH or KOH or LiOH, or to mixed hydroxides, or to alkali and alkaline earth nitrates.

Подробнее
Номер записи: 35
18-07-2013 дата публикации

COMPOUNDS FOR NEUTRON RADIATION DETECTORS AND SYSTEMS THEREOF

Номер: US20130181135A1
Автор: Carman M. Leslie, Cherepy Nerine J., Payne Stephen A., Stoeffl Wolfgang, Zaitseva Natalia P.
Принадлежит: Lawrence Livermore National Security, LLC

A material according to one embodiment exhibits an optical response signature for neutrons that is different than an optical response signature for gamma rays, said material exhibiting performance comparable to or superior to stilbene in terms of distinguishing neutrons from gamma rays, wherein the material is not stilbene, the material comprising a molecule selected from a group consisting of: two or more benzene rings, one or more benzene rings with a carboxylic acid group, one or more benzene rings with at least one double bound adjacent to said benzene ring, and one or more benzene rings for which at least one atom in the benzene ring is not carbon. 1. A material exhibiting an optical response signature for neutrons that is different than an optical response signature for gamma rays , said material exhibiting performance comparable to or superior to stilbene in terms of distinguishing neutrons from gamma rays , wherein the material is not stilbene , the material comprising a molecule selected from a group consisting of:two or more benzene rings,one or more benzene rings with a carboxylic acid group,one or more benzene rings with at least one double bound adjacent to said benzene ring, andone or more benzene rings for which at least one atom in the benzene ring is not carbon.2. The material of claim 1 , wherein the material is in the form of a crystal claim 1 , wherein the crystal has physical characteristics of formation from solution including faceted growth on at least one face of the crystal.3. The material of claim 2 , wherein the crystal has a length of greater than 1 mm in one dimension.4. The material of claim 1 , wherein the material is in the form of a crystal claim 1 , wherein the crystal has a length of greater than 1 mm in one dimension.5. The material of claim 1 , wherein the material is in the form of a crystal claim 1 , wherein the crystal has a length of greater than 5 mm in one dimension.6. The material of claim 1 , wherein the material includes ...

Подробнее
Номер записи: 36
10-03-2016 дата публикации

FLUORESCENT LIGHTING WITH ALUMINUM NITRIDE PHOSPHORS

Номер: US20160071718A1
Автор: Cherepy Nerine J., Payne Stephen A., Seeley Zachary M., Srivastava Alok M.
Принадлежит:

A fluorescent lamp includes a glass envelope; at least two electrodes connected to the glass envelope; mercury vapor and an inert gas within the glass envelope; and a phosphor within the glass envelope, wherein the phosphor blend includes aluminum nitride. The phosphor may be a wurtzite (hexagonal) crystalline structure AlMN phosphor, where M may be drawn from beryllium, magnesium, calcium, strontium, barium, zinc, scandium, yttrium, lanthanum, cerium, praseodymium, europium, gadolinium, terbium, ytterbium, bismuth, manganese, silicon, germanium, tin, boron, or gallium is synthesized to include dopants to control its luminescence under ultraviolet excitation. The disclosed AlMN:Mn phosphor provides bright orange-red emission, comparable in efficiency and spectrum to that of the standard orange-red phosphor used in fluorescent lighting, YO:Eu. Furthermore, it offers excellent lumen maintenance in a fluorescent lamp, and does not utilize “critical rare earths,” minimizing sensitivity to fluctuating market prices for the rare earth elements. 1. A fluorescent lamp , comprising:a glass envelope;at least two electrodes connected to said glass envelope;mercury vapor and an inert gas within said glass envelope; and{'sub': (1-x)', 'x, 'a phosphor blend within said glass envelope, wherein said phosphor blend includes AlMN, where M may be comprised of one or more dopants drawn from beryllium, magnesium, calcium, strontium, barium, zinc, scandium, yttrium, lanthanum, cerium, praseodymium, europium, gadolinium, terbium, ytterbium, bismuth, manganese, silicon, germanium, tin, boron, or gallium and x has a value of 0 Подробнее

Номер записи: 37
01-04-2021 дата публикации

Laser gain media fabricated via direct ink writing (diw) and ceramic processing

Номер: US20210098957A1
Автор: Cheng Zhu, Eric B. Duoss, Ivy Krystal Jones, Nerine J. Cherepy, Stephen A. Payne, Zachary M. Seeley
Принадлежит: Lawrence Livermore National Security LLC

In one aspect, a composition of matter includes: a plurality of particles in a thixotropic suspension to form an ink, where the plurality of particles are present in an amount of at least about 20 vol %, and the plurality of particles include: a first host medium material containing at least one of: one or more lasing species dopants; and one or more other dopant species; and a second host medium material containing at least one other dopant species. The composition of matter further includes a liquid phase present in an amount greater than 20 vol % and less than about 80 vol %, where the liquid phase comprises at least one of: at least one surfactant; at least one polar organic solvent; and at least one binder.

Подробнее
Номер записи: 38
28-05-2020 дата публикации

SYSTEMS AND METHODS FOR FLUORIDE CERAMIC PHOSPHORS FOR LED LIGHTING

Номер: US20200168770A1
Автор: Beers William Winder, Cherepy Nerine, COHEN William Erwin, OSBORNE Ross Allen, Payne Stephen A., Seeley Zachary, Srivastava Alok Mani
Принадлежит:

The present disclosure relates to a lighting component which may comprise a light emitting diode (LED) or laser diode (LD) for generating at least one of blue light or ultraviolet light. A fluoride phosphor matrix may be included, which may be consolidated into a phosphor ceramic structure including at least one of a transparent fluoride ceramic structure or a translucent fluoride ceramic structure, and positioned adjacent to the LED or LD. The phosphor ceramic structure generates at least one of red or orange light when irradiated by the light emitted from the LED or LD. The phosphor ceramic structure exhibits reduced thermal quenching relative to a fluoride particulate structure irradiated by the LED or LD. 1. An LED component comprising:a light emitting diode (LED) for generating at least one of blue light or ultraviolet light;a fluoride phosphor matrix, the fluoride phosphor matrix being consolidated into a phosphor ceramic structure including at least one of a transparent fluoride ceramic structure or a translucent fluoride ceramic structure, and positioned adjacent to the LED;the phosphor ceramic structure generating at least one of red or orange light when irradiated by the light emitted from the LED; andsaid phosphor ceramic structure exhibiting reduced thermal quenching relative to a fluoride particulate structure irradiated by the LED.2. The LED component of claim 1 , wherein the phosphor ceramic structure has a density of at least one of:>80% of the full density of a single crystal of the fluoride phosphor matrix;>90% of the full density; and>99% of the full density.3. The LED component of claim 1 , wherein the phosphor ceramic structure comprises a ceramic matrix having a cubic crystal structure.4. The LED component of claim 1 , wherein the phosphor ceramic structure comprises a ceramic matrix having a cubic or near-cubic KPtClstructure type.5. The LED component of claim 1 , wherein the fluoride phosphor matrix has the chemical formula MM′F claim 1 , ...

Подробнее
Номер записи: 39
02-10-2014 дата публикации

COMPOUNDS FOR NEUTRON RADIATION DETECTORS AND SYSTEMS THEREOF

Номер: US20140291532A1
Автор: Carman M. Leslie, Cherepy Nerine J., Payne Stephen A., Stoeffl Wolfgang, Zaitseva Natalia P.
Принадлежит: Lawrence Livermore National Security, LLC

A composition of matter includes an organic molecule having a composition different than stilbene. The organic molecule is embodied as a crystal, and exhibits: an optical response signature for neutrons; an optical response signature for gamma rays, and performance comparable to or superior to stilbene in terms of distinguishing neutrons from gamma rays. The optical response signature for neutrons is different than the optical response signature for gamma rays. 1. A composition of matter , comprising: an organic molecule having a composition different than stilbene ,wherein the organic molecule is embodied as a crystal, and an optical response signature for neutrons;', 'an optical response signature for gamma rays, and', 'performance comparable to or superior to stilbene in terms of distinguishing neutrons from gamma rays,, 'wherein the organic molecule exhibitswherein the optical response signature for neutrons is different than the optical response signature for gamma rays.2. The composition of matter as recited in claim 1 , wherein the organic molecule comprises at least one functional motif selected from:a benzene ring,a benzene ring functionalized with at least one carboxylic acid group,a benzene ring functionalized with at least one R group, the R group having at least one double bond adjacent to said benzene ring, anda benzene ring for which at least one atom in the benzene ring is not carbon; andtwo or more phenyl groups.3. The composition of matter as recited in claim 2 , wherein the at least one functional motif comprises the benzene ring.4. The composition of matter as recited in claim 2 , wherein the at least one functional motif comprises the at least one R group.5. The composition of matter as recited in claim 2 , wherein the at least one functional motif comprises the benzene ring for which at least one atom in the benzene ring is not carbon.6. The composition of matter as recited in claim 2 , wherein the at least one functional motif comprises the ...

Подробнее
Номер записи: 40
06-08-2015 дата публикации

Gamma ray spectroscopy employing divalent europium-doped alkaline earth halides and digital readout for accurate histogramming

Номер: US20150219770A1
Автор: Benjamin W. Sturm, Nerine Jane Cherepy, Owen B. Drury, Stephen Anthony Payne
Принадлежит: Lawrence Livermore National Security LLC

According to one embodiment, a scintillator radiation detector system includes a scintillator, and a processing device for processing pulse traces corresponding to light pulses from the scintillator, where the processing device is configured to: process each pulse trace over at least two temporal windows and to use pulse digitization to improve energy resolution of the system. According to another embodiment, a scintillator radiation detector system includes a processing device configured to: fit digitized scintillation waveforms to an algorithm, perform a direct integration of fit parameters, process multiple integration windows for each digitized scintillation waveform to determine a correction factor, and apply the correction factor to each digitized scintillation waveform.

Подробнее
Номер записи: 41
01-12-2016 дата публикации

BARIUM IODIDE AND STRONTIUM IODIDE CRYSTALS AND SCINTILLATORS IMPLEMENTING THE SAME

Номер: US20160349383A1
Автор: BURGER Arnold, Cherepy Nerine J., Drobshoff Alexander D., Hull Giulia E., Payne Stephen A.
Принадлежит:

In one embodiment, a material comprises a crystal comprising strontium iodide providing at least 50,000 photons per MeV, where the strontium iodide material is characterized by a volume not less than 1 cm. In another embodiment, a scintillator optic includes europium-doped strontium iodide providing at least 50,000 photons per MeV, where the europium in the crystal is primarily Eu, and the europium is present in an amount greater than about 1.6%. A scintillator radiation detector in yet another embodiment includes a scintillator optic comprising SrIand BaI, where a ratio of SrIto BaIis in a range of between 0:1 and 1.0, the scintillator optic is a crystal that provides at least 50,000 scintillation photons per MeV and energy resolution of less than about 5% at 662 keV, and the crystal has a volume of 1 cmor more; the scintillator optic contains more than about 2% europium. 1. (canceled)2. (canceled)3. (canceled)4. (canceled)5. (canceled)6. (canceled)7. (canceled)8. (canceled)9. (canceled)10. (canceled)11. (canceled)12. (canceled)13. (canceled)14. (canceled)15. A scintillator radiation detector , comprising:{'sub': 2', '2', '2', '2, 'a scintillator optic comprising SrIand BaI, wherein a ratio of SrIto BaIis in a range of between 0:1 and 1:0,'}wherein the scintillator optic is a crystal that provides at least 50,000 scintillation photons per MeV and energy resolution of less than about 5% at 662 keV,wherein the scintillator optic contains more than 2% europium; andwherein the scintillator optic contains at least one co-dopant, selected from cerium, praseodymium, thallium, or lead.16. The scintillator radiation detector of claim 15 , wherein the crystal provides an energy resolution of less than about 4% at 662 keV.17. The scintillator radiation detector of claim 15 , wherein the scintillator optic contains more than 2% europium and less than 8% europium.18. The scintillator radiation detector of claim 17 , wherein the europium is primarily Eu.19. The scintillator ...

Подробнее
Номер записи: 42
14-11-2019 дата публикации

Laser gain media fabricated via direct ink writing (diw) and ceramic processing

Номер: US20190348809A1
Автор: Cheng Zhu, Eric B. Duoss, Ivy Krystal Jones, Nerine J. Cherepy, Stephen A. Payne, Zachary M. Seeley
Принадлежит: Lawrence Livermore National Security LLC

A transparent ceramic optic includes: a lasing region comprising at least one lasing species dopant; and a transparent region transparent to light generated by the lasing species. At least the transparent region is doped with at least one other dopant species such that the lasing region and the transparent region are characterized by a difference in refractive index between the two regions in an amount of about 1.0×10 −4 or less. Inventive formulations of inks suitable for fabricating transparent ceramic optics having desirable compositional characteristics such as concentration gradients in desired spatial arrangements, e.g. using additive manufacturing techniques such as direct ink writing and/or extrusion freeform fabrication are also disclosed, along with suitable techniques for forming the transparent ceramic optics from such inks.

Подробнее
Номер записи: 43
09-02-2017 дата публикации

Scintillators having the k2ptcl6 crystal structure

Номер: CA2998331A1
Автор: Arnold Burger, Nerine Cherepy, Stephen A. Payne
Принадлежит: Fisk University, Lawrence Livermore National Security LLC

A scintillator comprises a host material having the chemical formula: A2BX6, wherein A includes a monovalent ion, B includes a tetravalent ion, and X includes a halide ion. The A is selected from the group consisting of: Li, Na, K, Rb, and Cs. The B is selected from the group consisting of: Ti, Zr, Hf, Sn, Se, and Te. The X is selected from the group consisting of: C1, Br, and I.

Подробнее
Номер записи: 44
16-01-2019 дата публикации

Transparent ceramic garnet scintillator detector for positron emission tomography

Номер: EP3426749A1
Автор: Mark Andreaco, Matthias Schmand, Nerine Cherepy, Peter Cohen, Stephen Payne, Zachary SEELEY
Принадлежит: Lawrence Livermore National Security LLC, Siemens Medical Solutions USA Inc

In one embodiment, a method includes forming a powder having a composition with the formula: AhBiCjO12, where h is 3 ± 10%, i is 2 ± 10%, j is 3 ±10%, A includes one or more rare earth elements, B includes aluminum and/or gallium, and C includes aluminum and/or gallium. The method additionally includes consolidating the powder to form an optically transparent ceramic, and applying at least one thermodynamic process condition during the consolidating to reduce oxygen and/or thermodynamically reversible defects in the ceramic. In another embodiment, a scintillator includes (Gd3-a-cYa)x(Ga5-bAlb)yO12Dc, where a is from about 0.05-2, b is from about 1-3, x is from about 2.8-3.2, y is from about 4.8-5.2, c is from about 0.003-0.3, and D is a dopant, and where the scintillator is an optically transparent ceramic scintillator having physical characteristics of being formed from a ceramic powder consolidated in oxidizing atmospheres.

Подробнее
Номер записи: 45
26-05-2006 дата публикации

Carbon aerogel and xerogel fuels for fuel cells and batteries

Номер: WO2006025993A3
Автор: Alan F Jankowski, Kyle Fiet, Nerine J Cherepy, Thomas M Tillotson
Принадлежит: Alan F Jankowski, Kyle Fiet, Nerine J Cherepy, Thomas M Tillotson, Univ California

A fuel cell or battery comprises a fuel cell or battery having an anode component. The anode component comprises an aerogel or xerogel.

Подробнее
Номер записи: 46
29-11-2016 дата публикации

Barium iodide and strontium iodide crystals and scintillators implementing the same

Номер: US9507032B1
Автор: Alexander D. Drobshoff, Arnold Burger, Giulia E. Hull, Nerine J. Cherepy, Stephen A. Payne
Принадлежит: Lawrence Livermore National Security LLC

In one embodiment, a material comprises a crystal comprising strontium iodide providing at least 50,000 photons per MeV, where the strontium iodide material is characterized by a volume not less than 1 cm 3 . In another embodiment, a scintillator optic includes europium-doped strontium iodide providing at least 50,000 photons per MeV, where the europium in the crystal is primarily Eu 2+ , and the europium is present in an amount greater than about 1.6%. A scintillator radiation detector in yet another embodiment includes a scintillator optic comprising SrI 2 and BaI 2 , where a ratio of SrI 2 to BaI 2 is in a range of between 0:1 and 1.0, the scintillator optic is a crystal that provides at least 50,000 scintillation photons per MeV and energy resolution of less than about 5% at 662 keV, and the crystal has a volume of 1 cm 3 or more; the scintillator optic contains more than about 2% europium.

Подробнее
Номер записи: 47
09-03-2006 дата публикации

Carbon aerogel and xerogel fuels for fuel cells and batteries

Номер: WO2006025993A2
Автор: Alan F. Jankowski, Kyle Fiet, Nerine J. Cherepy, Thomas M. Tillotson
Принадлежит: The Regents of the University of California

A fuel cell or battery comprises a fuel cell or battery having an anode component. The anode component comprises an aerogel or xerogel.

Подробнее
Номер записи: 48
23-06-2011 дата публикации

Fabrication of Transparent Ceramics Using Nanoparticles Synthesized Via Flame Spray Pyrolysis

Номер: US20110150735A1
Автор: Jeffery J. Roberts, Joshua D. Kuntz, Nerine J. Cherepy
Принадлежит: Lawrence Livermore National Security LLC

A method of fabrication of a transparent ceramic using nanoparticles synthesized via flame spray pyrolysis includes providing metal salts, dissolving said metal salts to form organic precursors in solution, aerosolizing said solution, oxidizing said aerosol in a flame, yielding oxide nano-particles, forming said oxide nano-particles into a green body, and sintering said green body to produce the transparent ceramic. Fabrication of transparent ceramic scintillators by this route that offer performance similar to that of single crystal scintillators has been demonstrated.

Подробнее
Номер записи: 49
24-12-2020 дата публикации

電子顕微鏡法のための高密度高速発光体

Номер: JP2020205272A
Автор: A Payne Steven, Cherepy Nerine, Geoffrey Trevor Colin, Joyce David, M Seeley Zachary, Michael James Edward, Webster Joseph, ウェブスター ジョセフ, エイ．ペイン スティーヴン, エム．シーリー ザカリー, ジェフリー トレバー コリン, ジェフリー トレバー コリン, ジョイス デイビッド
Принадлежит: Gatan Inc

【課題】密度が高く、変換効率が高く、また、減衰時間が短い薄いシンチレータを提供すること。【解決手段】比較的高い発光を有する高速減衰稠密発光体が記述される。材料選択、成長及び堆積技法の組合せにより、発光体薄膜は、Ｐ−４６、Ｐ−４７などの普通の高速発光体とは異なり、薄膜内で使用されると必要な光出力を保存するようになされ、また、Ｐ−４３などの普通の明るい発光体よりもはるかに速く減衰する残光を有する。多くのフレーム／画像を極めて速やかに獲得することが要求される用途における発光体の使用が記述される。【選択図】図１０

Подробнее
Номер записи: 50
27-12-2012 дата публикации

Plastic scintillator with effective pulse shape discrimination for neutron and gamma detection

Номер: WO2012142365A8
Автор: Andrew M. GLENN, Benjamin L. Rupert, M. Leslie Carman, Natalia P. Zaitseva, Nerine Cherepy, Sebastien Hamel, Stephen A. Payne
Принадлежит: Lawrence Livermore National Security, LLC

In one embodiment, a scintillator material includes a polymer matrix; and a primary dye in the polymer matrix, the primary dye being a fluorescent dye, the primary dye being present in an amount of 5 wt% or more; wherein the scintillator material exhibits an optical response signature for neutrons that is different than an optical response signature for gamma rays. In another embodiment, a scintillator material includes a polymer matrix; and a primary dye in the polymer matrix, the primary dye being a fluorescent dye, the primary dye being present in an amount greater than 10 wt%.

Подробнее
Номер записи: 51
29-02-2024 дата публикации

Systems And Methods For Fluoride Ceramic Phosphors For LED Lighting

Номер: US20240072217A1
Автор: Alok Srivastava, Nerine Cherepy, Ross Allen OSBORNE, Stephen Payne, William Beers, William Cohen, Zachary SEELEY
Принадлежит: Current Lighting Solutions LLC, Lawrence Livermore National Security LLC

The present disclosure relates to a lighting component which may comprise a light emitting diode (LED) or laser diode (LD) for generating at least one of blue light or ultraviolet light. A fluoride phosphor matrix may be included, which may be consolidated into a phosphor ceramic structure including at least one of a transparent fluoride ceramic structure or a translucent fluoride ceramic structure, and positioned adjacent to the LED or LD. The phosphor ceramic structure generates at least one of red or orange light when irradiated by the light emitted from the LED or LD. The phosphor ceramic structure exhibits reduced thermal quenching relative to a fluoride particulate structure irradiated by the LED or LD.

Подробнее
Номер записи: 52
25-07-2024 дата публикации

Laser gain media fabricated via direct ink writing (diw) and ceramic processing

Номер: US20240250491A1
Автор: Cheng Zhu, Eric B. Duoss, Ivy Krystal Jones, Nerine J. Cherepy, Stephen A. Payne, Zachary M. Seeley
Принадлежит: Lawrence Livermore National Security LLC

In one aspect, a transparent ceramic optic includes: a lasing region comprising at least one lasing species dopant; and a transparent region transparent to light generated by the lasing species. At least the transparent region is doped with at least one other dopant species such that the lasing region and the transparent region are characterized by a difference in refractive index between the two regions in an amount of about 1.0×10 −4 or less.

Подробнее
Номер записи: 53
30-07-2024 дата публикации

Indirect conversion nuclear battery using transparent scintillator material

Номер: US12050291B2
Автор: Erik Lars Swanberg, Jr., John Winter Murphy, Joshua Jarrell, Nerine Cherepy, Rebecca J. Nikolic
Принадлежит: Lawrence Livermore National Security LLC

A product includes a transparent scintillator material, a beta emitter material having an end-point energy of greater than 225 kiloelectron volts (keV), and a photovoltaic portion configured to convert light emitted by the scintillator material to electricity. A thickness the scintillator material is sufficient to protect the photovoltaic portion from significant radiation damage.

Подробнее
Номер записи: 54
30-08-2016 дата публикации

Compounds for neutron radiation detectors and systems thereof

Номер: US09429663B2
Автор: M. Leslie Carman, Natalia P. Zaitseva, Nerine J. Cherepy, Stephen A. Payne, Wolfgang Stoeffl
Принадлежит: Lawrence Livermore National Security LLC

A composition of matter includes an organic molecule having a composition different than stilbene. The organic molecule is embodied as a crystal, and exhibits: an optical response signature for neutrons; an optical response signature for gamma rays, and performance comparable to or superior to stilbene in terms of distinguishing neutrons from gamma rays. The optical response signature for neutrons is different than the optical response signature for gamma rays.

Подробнее
Номер записи: 55