Patents by Inventor Alexander Andrew Carey
Alexander Andrew Carey has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11597877Abstract: Disclosed herein is a material, comprising a first metal halide that is operative to function as a scintillator; where the first metal halide excludes cesium iodide (ScI), strontium iodide (SrI2), cesium bromide (CsBr), thallium doped cesium iodide (CsI:Tl), europium doped strontium iodide (SrI2:Eu), europium doped barium iodide (BaI2;EU), cerium doped strontium iodide (SrI2:Ce), cerium doped barium iodide (BaI2:Ce), cerium doped lanthanum bromide (LaBr3:Ce), and cerium doped lutetium iodide (LuI3:Ce); and a surface layer comprising a second metal halide that is disposed on a surface of the first metal halide; where the second metal halide has a lower water solubility than the first metal halide.Type: GrantFiled: July 19, 2021Date of Patent: March 7, 2023Assignee: Siemens Medical Solutions USA, Inc.Inventors: Alexander Andrew Carey, Peter Carl Cohen, Mark S. Andreaco
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Patent number: 11555147Abstract: The present disclosure discloses, in one arrangement, a scintillator material made of a metal halide with one or more additional group-13 elements. An example of such a compound is Ce:LaBr3 with thallium (Tl) added, either as a codopant or in a stoichiometric admixture and/or solid solution between LaBr3 and TlBr. In another arrangement, the above single crystalline iodide scintillator material can be made by first synthesizing a compound of the above composition and then forming a single crystal from the synthesized compound by, for example, the Vertical Gradient Freeze method. Applications of the scintillator materials include radiation detectors and their use in medical and security imaging.Type: GrantFiled: March 30, 2018Date of Patent: January 17, 2023Assignee: Siemens Medical Solutions USA, Inc.Inventors: Peter Carl Cohen, Alexander Andrew Carey, Mark S. Andreaco, Matthias J. Schmand
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Publication number: 20210340442Abstract: Disclosed herein is a material, comprising a first metal halide that is operative to function as a scintillator; where the first metal halide excludes cesium iodide, strontium iodide, and cesium bromide; and a surface layer comprising a second metal halide that is disposed on a surface of the first metal halide; where the second metal halide has a lower water solubility than the first metal halide.Type: ApplicationFiled: July 19, 2021Publication date: November 4, 2021Inventors: Alexander Andrew Carey, Peter Carl Cohen, Mark S. Andreaco
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Patent number: 11098248Abstract: Disclosed herein is a material, comprising a first metal halide that is operative to function as a scintillator; where the first metal halide excludes cesium iodide, strontium iodide, and cesium bromide; and a surface layer comprising a second metal halide that is disposed on a surface of the first metal halide; where the second metal halide has a lower water solubility than the first metal halide.Type: GrantFiled: August 20, 2018Date of Patent: August 24, 2021Assignee: Siemens Medical Solutions USA, Inc.Inventors: Alexander Andrew Carey, Peter Carl Cohen, Mark S. Andreaco
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Patent number: 10961452Abstract: Disclosed herein is a method including manufacturing a powder having a composition of formula (1), M1aM2bM3cM4dO12??(1) where O represents oxygen, M1, M2, M3, and M4 represents a first, second, third, and fourth metal that are different from each other, where the sum of a+b+c+d is about 8, where “a” has a value of about 2 to about 3.5, “b” has a value of 0 to about 5, “c” has a value of 0 to about 5 “d” has a value of 0 to about 1, where “b” and “c”, “b” and “d”, or “c” and “d” cannot both be equal to zero simultaneously, where M1 is a rare earth element comprising gadolinium, yttrium, lutetium, scandium, or a combination of thereof, M2 is aluminum or boron, M3 is gallium, and M4 is a dopant; and heating the powder to a temperature of 500 to 1700° C. in an oxygen containing atmosphere to manufacture a crystalline scintillator.Type: GrantFiled: February 4, 2019Date of Patent: March 30, 2021Assignee: Siemens Medical Solutions USA, Inc.Inventors: Peter Carl Cohen, Alexander Andrew Carey, Mark S. Andreaco
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Patent number: 10774440Abstract: A method of growing a rare-earth oxyorthosilicate crystal, and crystals grown using the method are disclosed. The method includes preparing a melt by melting a first substance including at least one first rare-earth element and providing an atmosphere that includes an inert gas and a gas including oxygen.Type: GrantFiled: January 18, 2019Date of Patent: September 15, 2020Assignee: Siemens Medical Solutions USA, Inc.Inventors: Mark S. Andreaco, Peter Carl Cohen, Alexander Andrew Carey
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Publication number: 20190169499Abstract: Disclosed herein is a method including manufacturing a powder having a composition of formula (1), M1aM2bM3cM4dO12??(1) where O represents oxygen, M1, M2, M3, and M4 represents a first, second, third, and fourth metal that are different from each other, where the sum of a+b+c+d is about 8, where “a” has a value of about 2 to about 3.5, “b” has a value of 0 to about 5, “c” has a value of 0 to about 5 “d” has a value of 0 to about 1, where “b” and “c”, “b” and “d”, or “c” and “d” cannot both be equal to zero simultaneously, where M1 is a rare earth element comprising gadolinium, yttrium, lutetium, scandium, or a combination of thereof, M2 is aluminum or boron, M3 is gallium, and M4 is a dopant; and heating the powder to a temperature of 500 to 1700° C. in an oxygen containing atmosphere to manufacture a crystalline scintillator.Type: ApplicationFiled: February 4, 2019Publication date: June 6, 2019Inventors: Peter Carl Cohen, Alexander Andrew Carey, Mark S. Andreaco
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Publication number: 20190153614Abstract: A method of growing a rare-earth oxyorthosilicate crystal, and crystals grown using the method are disclosed. The method includes preparing a melt by melting a first substance including at least one first rare-earth element and providing an atmosphere that includes an inert gas and a gas including oxygen.Type: ApplicationFiled: January 18, 2019Publication date: May 23, 2019Inventors: Mark S. Andreaco, Peter Carl Cohen, Alexander Andrew Carey
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Patent number: 10227709Abstract: A method of growing a rare-earth oxyorthosilicate crystal, and crystals grown using the method are disclosed. The method includes preparing a melt by melting a first substance including at least one first rare-earth element and providing an atmosphere that includes an inert gas and a gas including oxygen.Type: GrantFiled: February 17, 2015Date of Patent: March 12, 2019Assignee: Siemens Medical Solutions USA, Inc.Inventors: Mark S. Andreaco, Peter Carl Cohen, Alexander Andrew Carey
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Patent number: 10197685Abstract: Disclosed herein is a method including manufacturing a powder having a composition of formula (1), M1aM2bM3cM4dO12??(1) where O represents oxygen, M1, M2, M3, and M4 represents a first, second, third, and fourth metal that are different from each other, where the sum of a+b+c+d is about 8, where “a” has a value of about 2 to about 3.5, “b” has a value of 0 to about 5, “c” has a value of 0 to about 5 “d” has a value of 0 to about 1, where “b” and “c”, “b” and “d”, or “c” and “d” cannot both be equal to zero simultaneously, where M1 is a rare earth element comprising gadolinium, yttrium, lutetium, scandium, or a combination of thereof, M2 is aluminum or boron, M3 is gallium, and M4 is a codopant; and heating the powder to a temperature of 500 to 1700° C. in an oxygen containing atmosphere to manufacture a crystalline scintillator.Type: GrantFiled: December 1, 2015Date of Patent: February 5, 2019Assignee: Siemens Medical Solutions USA, Inc.Inventors: Peter Carl Cohen, Alexander Andrew Carey, Mark S. Andreaco
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Publication number: 20180355245Abstract: Disclosed herein is a material, comprising a first metal halide that is operative to function as a scintillator; where the first metal halide excludes cesium iodide, strontium iodide, and cesium bromide; and a surface layer comprising a second metal halide that is disposed on a surface of the first metal halide; where the second metal halide has a lower water solubility than the first metal halide.Type: ApplicationFiled: August 20, 2018Publication date: December 13, 2018Inventors: Alexander Andrew Carey, Peter Carl Cohen, Mark S. Andreaco
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Patent number: 10087367Abstract: A halide material, such as scintillator crystals of LaBr3:Ce and SrI2:Eu, with a passivation surface layer is disclosed. The surface layer comprises one or more halides of lower water solubility than the scintillator crystal that the surface layer covers. A method for making such a material is also disclosed. In certain aspects of the disclosure, a passivation layer is formed on a surface of a halide material such as a scintillator crystal of LaBr3:Ce of SrI2:Eu by fluorinating the surface with a fluorinating agent, such as F2 for LaBr3:Ce and HF for SrI2:Eu.Type: GrantFiled: January 13, 2016Date of Patent: October 2, 2018Assignee: Siemens Medical Solutions USA, Inc.Inventors: Alexander Andrew Carey, Peter Carl Cohen, Mark S. Andreaco
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Publication number: 20180223186Abstract: The present disclosure discloses, in one arrangement, a scintillator material made of a metal halide with one or more additional group-13 elements. An example of such a compound is Ce:LaBr3 with thallium (Tl) added, either as a codopant or in a stoichiometric admixture and/or solid solution between LaBr3 and TlBr. In another arrangement, the above single crystalline iodide scintillator material can be made by first synthesizing a compound of the above composition and then forming a single crystal from the synthesized compound by, for example, the Vertical Gradient Freeze method. Applications of the scintillator materials include radiation detectors and their use in medical and security imaging.Type: ApplicationFiled: March 30, 2018Publication date: August 9, 2018Inventors: Peter Carl Cohen, Alexander Andrew Carey, Mark S. Andreaco, Matthias J. Schmand
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Publication number: 20170153335Abstract: Disclosed herein is a method including manufacturing a powder having a composition of formula (1), M1aM2bM3cM4dO12??(1) where O represents oxygen, M1, M2, M3, and M4 represents a first, second, third, and fourth metal that are different from each other, where the sum of a+b+c+d is about 8, where “a” has a value of about 2 to about 3.5, “b” has a value of 0 to about 5, “c” has a value of 0 to about 5 “d” has a value of 0 to about 1, where “b” and “c”, “b” and “d”, or “c” and “d” cannot both be equal to zero simultaneously, where M1 is a rare earth element comprising gadolinium, yttrium, lutetium, scandium, or a combination of thereof, M2 is aluminum or boron, M3 is gallium, and M4 is a codopant; and heating the powder to a temperature of 500 to 1700° C. in an oxygen containing atmosphere to manufacture a crystalline scintillator.Type: ApplicationFiled: December 1, 2015Publication date: June 1, 2017Inventors: Peter Carl Cohen, Alexander Andrew Carey, Mark S. Andreaco
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Patent number: 9664800Abstract: A scintillator element is disclosed where the scintillator element includes a scintillator formed of a scintillation material capable of converting non-visible radiation into scintillation light, wherein the scintillator has a plurality of laser-etched micro-voids within the scintillator, each micro-void having an interior surface, and an intrinsic reflective layer is formed on the interior surface of at least some of the micro-voids, wherein the intrinsic reflective layer is formed from the scintillation material.Type: GrantFiled: February 19, 2016Date of Patent: May 30, 2017Assignees: University of Tennessee Research Foundation, Siemens Medical Solutions USA, Inc.Inventors: Mark S. Andreaco, Peter Carl Cohen, Matthias J. Schmand, James L. Corbeil, Alexander Andrew Carey, Robert A. Mintzer, Charles L. Melcher, Merry A. Koschan
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Publication number: 20160170043Abstract: A scintillator element is disclosed where the scintillator element includes a scintillator formed of a scintillation material capable of converting non-visible radiation into scintillation light, wherein the scintillator has a plurality of laser-etched micro-voids within the scintillator, each micro-void having an interior surface, and an intrinsic reflective layer is formed on the interior surface of at least some of the micro-voids, wherein the intrinsic reflective layer is formed from the scintillation material.Type: ApplicationFiled: February 19, 2016Publication date: June 16, 2016Inventors: Mark S. Andreaco, Peter Carl Cohen, Matthias J. Schmand, James L. Corbeil, Alexander Andrew Carey, Robert A. Mintzer, Charles L. Melcher, Merry A. Koschan
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Publication number: 20160122641Abstract: A halide material, such as scintillator crystals of LaBr3:Ce and SrI2:Eu, with a passivation surface layer is disclosed. The surface layer comprises one or more halides of lower water solubility than the scintillator crystal that the surface layer covers. A method for making such a material is also disclosed. In certain aspects of the disclosure, a passivation layer is formed on a surface of a halide material such as a scintillator crystal of LaBr3:Ce of SrI2:Eu by fluorinating the surface with a fluorinating agent, such as F2 for LaBr3:Ce and HF for SrI2:Eu.Type: ApplicationFiled: January 13, 2016Publication date: May 5, 2016Inventors: Alexander Andrew Carey, Peter Carl Cohen, Mark S. Andreaco
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Publication number: 20150184312Abstract: A method of growing a rare-earth oxyorthosilicate crystal, and crystals grown using the method are disclosed. The method includes preparing a melt by melting a first substance including at least one first rare-earth element and providing an atmosphere that includes an inert gas and a gas including oxygen.Type: ApplicationFiled: February 17, 2015Publication date: July 2, 2015Inventors: Mark S. Andreaco, Peter Carl Cohen, Alexander Andrew Carey
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Patent number: 5656767Abstract: A method and apparatus for automatically detecting a lubricant type and the relative quantity of water present in a test sample of lubricating oil includes the use of an open grid capacitive sensor element that incorporates the lubricating oil as a dielectric medium. The sensor element grid is energized by a frequency variable oscillator that automatically responds to changes in the oil dielectric constant with corresponding frequency changes. As a reference, a sample of new or uncontaminated test oil is confined in wet surface contact with the energized, open grid sensor element. Oscillator frequency changes are measured and recorded, either continuously or at frequent intervals, over a standardized elapsed time interval to generate a reference characterization of the frequency-time relationship distinctive of the particular oil. The same is repeated for a sample of contaminated oil and a corresponding frequency-time relationship generated.Type: GrantFiled: March 8, 1996Date of Patent: August 12, 1997Assignee: Computational Systems, Inc.Inventors: Raymond E. Garvey, III, Alexander Andrew Carey