公开(公告)号：US20170145305A1

公开(公告)日：2017-05-25

申请号：US14952175

申请日：2015-11-25

申请人： Siemens Medical Solutions USA, Inc.

发明人： Peter Carl Cohen ,  Robert A. Mintzer ,  Mark S. Andreaco ,  Matthias J. Schmand ,  Christof Thalhammer ,  Harry Hedler

IPC分类号： C09K11/77 ,  C04B35/50 ,  C04B35/645 ,  G01T1/29

CPC分类号： C09K11/7706 ,  B33Y10/00 ,  B33Y80/00 ,  C04B35/50 ,  C04B35/5156 ,  C04B35/6261 ,  C04B35/62645 ,  C04B35/62675 ,  C04B35/6268 ,  C04B35/645 ,  C04B35/6455 ,  C04B2235/3201 ,  C04B2235/3203 ,  C04B2235/3206 ,  C04B2235/3208 ,  C04B2235/3213 ,  C04B2235/3215 ,  C04B2235/3217 ,  C04B2235/3224 ,  C04B2235/3225 ,  C04B2235/3227 ,  C04B2235/3229 ,  C04B2235/3281 ,  C04B2235/3286 ,  C04B2235/3293 ,  C04B2235/3298 ,  C04B2235/3418 ,  C04B2235/5427 ,  C04B2235/5436 ,  C04B2235/602 ,  C04B2235/604 ,  C04B2235/658 ,  C04B2235/764 ,  C04B2235/945 ,  C04B2235/9646 ,  C09K11/7731 ,  C09K11/7733 ,  C09K11/7774 ,  G01T1/2985

摘要： Disclosed herein is a method including disposing in a mold a powder that has a composition for manufacturing a scintillator material and compressing the powder to form the scintillator material; where an exit surface of the scintillator material has a texture that comprises a plurality of projections that reduce total internal reflection at the exit surface and that increase the amount of photons exiting the exit surface by an amount of greater than or equal to 5% over a surface that does not have the projections.

公开(公告)号：US09328288B2

公开(公告)日：2016-05-03

申请号：US14536884

申请日：2014-11-10

申请人： Siemens Medical Solutions USA, Inc.

发明人： Peter Carl Cohen ,  A. Andrew Carey ,  Mark S. Andreaco ,  Matthias J. Schmand ,  Brant Quinton

IPC分类号： G01T1/20 ,  C09K11/77 ,  C30B15/00 ,  C30B29/34

CPC分类号： C09K11/7774 ,  C30B15/00 ,  C30B29/34

摘要： A method for making a rare-earth oxyorthosilicate scintillator single crystal includes growing a single crystal from a melt of compounds including a rare-earth element (such as Lu), silicon and oxygen, a compound including a rare-earth activator (such as Ce), and a compound of a Group-7 element (such as Mn). The method further includes selecting an scintillation performance parameter (such as decay), and based on the scintillation performance parameter to be achieved, doping activator and Group-7 element at predetermined levels, or relative levels between the two, so as to achieve stable growth of the single-crystalline scintillator material from the melt.

摘要翻译： 制备稀土氧原硅酸盐闪烁体单晶的方法包括从包括稀土元素（如Lu），硅和氧的化合物的熔体中生长单晶，包括稀土活化剂（例如Ce ）和第7族元素（如Mn）的化合物。 该方法还包括选择闪烁性能参数（如衰变），并且基于要实现的闪烁性能参数，掺杂活化剂和第7族元素在预定水平或两者之间的相对水平，以实现稳定生长 的来自熔体的单晶闪烁体材料。

公开(公告)号：US20150184312A1

公开(公告)日：2015-07-02

申请号：US14623760

申请日：2015-02-17

申请人： Siemens Medical Solutions USA, Inc.

发明人： Mark S. Andreaco ,  Peter Carl Cohen ,  Alexander Andrew Carey

IPC分类号： C30B15/04 ,  C09K11/77 ,  C30B29/34

CPC分类号： C30B15/04 ,  C09K11/7706 ,  C09K11/7774 ,  C30B15/02 ,  C30B29/34

摘要： 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.

摘要翻译： 公开了生长稀土氧原硅酸盐晶体的方法和使用该方法生长的晶体。 该方法包括通过熔化包含至少一种第一稀土元素的第一物质并提供包括惰性气体和包含氧的气​​体的气氛来制备熔体。

公开(公告)号：US20150136992A1

公开(公告)日：2015-05-21

申请号：US14536884

申请日：2014-11-10

申请人： Siemens Medical Solutions USA, Inc.

发明人： Peter Carl Cohen ,  A. Andrew Carey ,  Mark S. Andreaco ,  Matthias J. Schmand ,  Brant Quinton

IPC分类号： G01N23/22 ,  C09K11/77 ,  C30B15/04 ,  C30B29/18 ,  G01N24/08 ,  G01T1/20

CPC分类号： C09K11/7774 ,  C30B15/00 ,  C30B29/34

摘要： A method for making a rare-earth oxyorthosilicate scintillator single crystal includes growing a single crystal from a melt of compounds including a rare-earth element (such as Lu), silicon and oxygen, a compound including a rare-earth activator (such as Ce), and a compound of a Group-7 element (such as Mn). The method further includes selecting an scintillation performance parameter (such as decay), and based on the scintillation performance parameter to be achieved, doping activator and Group-7 element at predetermined levels, or relative levels between the two, so as to achieve stable growth of the single-crystalline scintillator material from the melt.

摘要翻译： 制备稀土氧原硅酸盐闪烁体单晶的方法包括从包括稀土元素（如Lu），硅和氧的化合物的熔体中生长单晶，包括稀土活化剂（例如Ce ）和第7族元素（如Mn）的化合物。 该方法还包括选择闪烁性能参数（如衰变），并且基于要实现的闪烁性能参数，掺杂活化剂和第7族元素在预定水平或两者之间的相对水平，以实现稳定生长 的来自熔体的单晶闪烁体材料。

公开(公告)号：US11555147B2

公开(公告)日：2023-01-17

申请号：US15941348

申请日：2018-03-30

申请人： Siemens Medical Solutions USA, Inc.

发明人： Peter Carl Cohen ,  Alexander Andrew Carey ,  Mark S. Andreaco ,  Matthias J. Schmand

IPC分类号： C09K11/77 ,  C30B29/12 ,  C30B11/02 ,  G21K4/00 ,  C30B11/00

摘要： 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.

公开(公告)号：US20210340442A1

公开(公告)日：2021-11-04

申请号：US17305980

申请日：2021-07-19

申请人： Siemens Medical Solutions USA, Inc.

发明人： Alexander Andrew Carey ,  Peter Carl Cohen ,  Mark S. Andreaco

IPC分类号： C09K11/08 ,  G01T1/202

摘要： 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.

公开(公告)号：US11098248B2

公开(公告)日：2021-08-24

申请号：US16105039

申请日：2018-08-20

申请人： Siemens Medical Solutions USA, Inc.

发明人： Alexander Andrew Carey ,  Peter Carl Cohen ,  Mark S. Andreaco

IPC分类号： C09K11/77 ,  C09K11/08 ,  G21K4/00

摘要： 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.

公开(公告)号：US20190169499A1

公开(公告)日：2019-06-06

申请号：US16266457

申请日：2019-02-04

申请人： Siemens Medical Solutions USA, Inc.

发明人： Peter Carl Cohen ,  Alexander Andrew Carey ,  Mark S. Andreaco

IPC分类号： C09K11/77

摘要： 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.

公开(公告)号：US20170260448A1

公开(公告)日：2017-09-14

申请号：US15064509

申请日：2016-03-08

申请人： Lawrence Livermore National Security, LLC ,  Siemens Medical Solutions USA, Inc.

发明人： Nerine Cherepy ,  Stephen A. Payne ,  Zachary Seeley ,  Peter Carl Cohen ,  Mark S. Andreaco ,  Matthias J. Schmand

IPC分类号： C09K11/77 ,  G01T1/24 ,  C04B35/626 ,  G01T1/20

CPC分类号： C09K11/7774 ,  C04B35/44 ,  C04B35/6267 ,  C04B2235/3217 ,  C04B2235/3224 ,  C04B2235/3225 ,  C04B2235/3286 ,  C04B2235/6583 ,  C04B2235/764 ,  C04B2235/9653 ,  G01T1/2002 ,  G01T1/2018 ,  G01T1/202 ,  G01T1/249

摘要： In one embodiment, a method includes forming a powder having a composition with the formula: AhBiCjO12, 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 (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.

公开(公告)号：US09328287B2

公开(公告)日：2016-05-03

申请号：US14153290

申请日：2014-01-13

申请人： Siemens Medical Solutions USA, Inc.

发明人： A. Andrew Carey ,  Peter Carl Cohen ,  Mark S. Andreaco

IPC分类号： C09K11/77

CPC分类号： C09K11/7772 ,  C09K11/7704 ,  C09K11/7719 ,  C09K11/7733

摘要： 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.

摘要翻译： 公开了一种卤化物材料，例如具有钝化表面层的LaBr 3：Ce和SrI 2：Eu的闪烁体晶体。 表面层包含比表层覆盖的闪烁体晶体更低的水溶性的一种或多种卤化物。 还公开了制造这种材料的方法。 在本发明的某些方面，通过氟化剂如LaBr 3：Ce和HF的氟化氟化表面，在诸如SrI 2：Eu的LaBr 3：Ce的闪烁体晶体的卤化物材料的表面上形成钝化层 用于SrI2：Eu。