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1.发明授权公开(公告)号：US08278624B2
公开(公告)日：2012-10-02
申请号：US11842813
申请日：2007-08-21
CPC分类号： C09K11/7774 , C30B15/04 , C30B29/34
摘要： LSO scintillation crystals with improved scintillation and optical properties are achieved by controlled co-doping a LSO crystal melt with amounts of cerium and an additional codopant such as calcium or other divalent cations. Crystal growth atmosphere is optimized by controlling the amount of oxygen in the atmosphere. Zinc is added as an additional material to restabilize crystal growth where calcium co-dopant is added. The decay time of the scintillation crystal can be controlled by controlling the concentration of co-dopant added.
摘要翻译： 具有改善的闪烁和光学性质的LSO闪烁晶体通过用量的铈和另外的共掺杂剂例如钙或其它二价阳离子控制共掺杂LSO晶体熔体来实现。 通过控制大气中的氧气量来优化晶体生长气氛。 添加锌作为附加材料，以重新稳定晶体生长，其中加入钙共掺杂剂。 闪烁晶体的衰减时间可以通过控制添加的共掺杂剂的浓度来控制。
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2.发明申请公开(公告)号：US20100078595A1
公开(公告)日：2010-04-01
申请号：US12568063
申请日：2009-09-28
CPC分类号： C30B29/34 , C09K11/7774 , C30B15/00
摘要： Crystals with improved scintillation and optical properties are achieved by codoping with a trivalent dopant and a divalent and/or a monovalent dopant. Embodiments include codoping LSO, YSO, GSO crystals and LYSO, LGSO, and LYGSO crystals. Embodiments also include codoped crystals with a controlled monovalent or divalent:trivalent dopant ratio of from about 1:1 for increased light yield to about 4:1 for faster decay time.
摘要翻译： 具有改善的闪烁和光学性质的晶体通过与三价掺杂剂和二价和/或一价掺杂剂共掺杂来实现。 实施方案包括共编LSO，YSO，GSO晶体和LYSO，LGSO和LYGSO晶体。 实施方案还包括具有约1：1的受控一价或二价：三价掺杂剂比例的共掺杂晶体，以提高光产率至约4:1，以获得更快的衰变时间。
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公开(公告)号：US20220025257A1
公开(公告)日：2022-01-27
申请号：US17240344
申请日：2021-04-26
申请人： Luis Stand Stracuzzi , Mao-Hua Du , Edgar V. Van Loef , Merry A. Koschan , Mariya Zhuravleva , Charles L. Melcher , Kanai S. Shah
发明人： Luis Stand Stracuzzi , Mao-Hua Du , Edgar V. Van Loef , Merry A. Koschan , Mariya Zhuravleva , Charles L. Melcher , Kanai S. Shah
摘要： Ternary transition metal halides are described herein. The ternary transition metal halides may be used as scintillator materials.
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公开(公告)号：US08912498B2
公开(公告)日：2014-12-16
申请号：US13098642
申请日：2011-05-02
CPC分类号： C09K11/772 , C30B11/00 , C30B29/12 , G21K4/00
摘要： A halide scintillator material is disclosed. The material is single-crystalline and has a composition of the formula A3MBr6(1-x)Cl6x (such as Cs3CeBr6(1-x)Cl6x) or AM2Br7(1-x)Cl7x (such as CsCe2Br7(1-x)Cl7x), 0≦x≦1, wherein A consists essentially of Li, Na K, Rb, Cs or any combination thereof, and M consists essentially of Ce, Sc, Y, La, Lu, Gd, Pr, Tb, Yb, Nd or any combination thereof. Furthermore, a method of making halide scintillator materials of the above-mentioned compositions is disclosed. In one example, high-purity starting halides (such as CsBr, CeBr3, CsCl and CeCl3) are mixed and melted to synthesize a compound of the desired composition of the scintillator material. A single crystal of the scintillator material is then grown from the synthesized compound by the Bridgman method. The disclosed scintillator materials are suitable for making scintillation detectors used in applications such as medical imaging and homeland security.
摘要翻译： 公开了一种卤化物闪烁体材料。 该材料是单晶的并且具有式A3MBr6（1-x）Cl6x（例如Cs3CeBr6（1-x）Cl6x）或AM2Br7（1-x）Cl7x（例如CsCe2Br7（1-x）Cl7x）的组成） ，其中A基本上由Li，NaK，Rb，Cs或其组合组成，M基本上由Ce，Sc，Y，La，Lu，Gd，Pr，Tb，Yb，Nd或 其任何组合。 此外，公开了制备上述组合物的卤化物闪烁体材料的方法。 在一个实例中，将高纯度起始卤化物（例如CsBr，CeBr 3，CsCl和CeCl 3）混合并熔融以合成所需闪烁体材料组成的化合物。 然后通过Bridgman方法从合成的化合物生长闪烁体材料的单晶。 公开的闪烁体材料适用于制造用于医学成像和国土安全等应用的闪烁检测器。
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公开(公告)号：US20140110588A1
公开(公告)日：2014-04-24
申请号：US13098654
申请日：2011-05-02
CPC分类号： C30B29/12 , C09K11/7733 , C30B11/003 , G01T1/20 , G01T1/202 , G01T3/06 , G21K4/00
摘要： The present disclosure discloses, in one arrangement, a single crystalline iodide scintillator material having a composition of the formula AM1-xEuxI3, A3M1-xEuxI5 and AM2(1-x)Eu2xI5, wherein A consists essentially of any alkali metal element (such as Li, Na K, Rb, Cs) or any combination thereof, M consists essentially of Sr, Ca, Ba or any combination thereof, and 0≦x≦1. 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 iodide scintillator materials include radiation detectors and their use in medical and security imaging.
摘要翻译： 本公开在一种布置中公开了具有式AM1-xEuxI3，A3M1-xEuxI5和AM2（1-x）Eu2xI5组成的单结晶碘化物闪烁体材料，其中A基本上由任何碱金属元素（例如Li ，Na K，Rb，Cs）或其任何组合，M基本上由Sr，Ca，Ba或其任何组合组成，并且0和n 1; x和n 1; 在另一种布置中，上述单结晶碘化物闪烁体材料可以通过首先合成上述组成的化合物，然后通过例如垂直梯度冷冻法由合成的化合物形成单晶来制备。 碘化物闪烁体材料的应用包括辐射探测器及其在医疗和安全成像中的应用。
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公开(公告)号：US20110272586A1
公开(公告)日：2011-11-10
申请号：US13098662
申请日：2011-05-02
CPC分类号： G21K4/00 , C09K11/7705 , C09K11/772 , C09K11/7773 , C30B11/00 , C30B29/12 , G21K2004/06
摘要： The present disclosure discloses, in one arrangement, a single crystalline chloride scintillator material having a composition of the formula A3MCl6, wherein A consists essentially of Li, Na K, Rb, Cs or any combination thereof, and M consists essentially of Ce, Sc, Y, La, Lu, Gd, Pr, Tb, Yb, Nd or any combination thereof. In another arrangement, a chloride scintillator material is single-crystalline and has a composition of the formula AM2Cl7, wherein A consists essentially of Li, Na K, Rb, Cs or any combination thereof, and M consists essentially of Ce, Sc, Y, La, Lu, Gd, Pr, Tb, Yb, Nd or any combination thereof. Specific examples of these scintillator materials include single-crystalline Cs3CeCl6, CsCe2Cl7, Ce-doped KGd2Cl7 (KGd2(1-x)Ce2xCl7) and Ce-doped CsGd2Cl7 (CsGd2(1-x)Ce2xCl7). In a further arrangement, the Bridgman method can be used to grown single crystals of the chloride scintillator materials compounds synthesized from starting chlorides.
摘要翻译： 本公开在一种布置中公开了具有式A3MCl6组成的单晶氯化物闪烁体材料，其中A主要由Li，NaK，Rb，Cs或其任何组合组成，M基本上由Ce，Sc， Y，La，Lu，Gd，Pr，Tb，Yb，Nd或其任何组合。 在另一种布置中，氯化物闪烁体材料是单晶的并且具有式AM2Cl7的组成，其中A基本上由Li，NaK，Rb，Cs或其任何组合组成，M基本上由Ce，Sc，Y， La，Lu，Gd，Pr，Tb，Yb，Nd或其任何组合。 这些闪烁体材料的具体实例包括单晶Cs3CeCl6，CsCe2Cl7，Ce掺杂的KGd2Cl7（KGd2（1-x）Ce2xCl7）和Ce掺杂的CsGd2Cl7（CsGd2（1-x）Ce2xCl7）。 在另一种布置中，Bridgman方法可用于生长由起始氯化物合成的氯化物闪烁体材料化合物的单晶。
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公开(公告)号：US20110272585A1
公开(公告)日：2011-11-10
申请号：US13098642
申请日：2011-05-02
CPC分类号： C09K11/772 , C30B11/00 , C30B29/12 , G21K4/00
摘要： A halide scintillator material is disclosed. The material is single-crystalline and has a composition of the formula A3MBr6(1-x)Cl6x (such as Cs3CeBr6(1-x)Cl6x) or AM2Br7(1-x)Cl7x (such as CsCe2Br7(1-x)Cl7x), 0≦x≦1, wherein A consists essentially of Li, Na K, Rb, Cs or any combination thereof, and M consists essentially of Ce, Sc, Y, La, Lu, Gd, Pr, Tb, Yb, Nd or any combination thereof. Furthermore, a method of making halide scintillator materials of the above-mentioned compositions is disclosed. In one example, high-purity starting halides (such as CsBr, CeBr3, CsCl and CeCl3) are mixed and melted to synthesize a compound of the desired composition of the scintillator material. A single crystal of the scintillator material is then grown from the synthesized compound by the Bridgman method. The disclosed scintillator materials are suitable for making scintillation detectors used in applications such as medical imaging and homeland security.
摘要翻译： 公开了一种卤化物闪烁体材料。 该材料是单晶的并且具有式A3MBr6（1-x）Cl6x（例如Cs3CeBr6（1-x）Cl6x）或AM2Br7（1-x）Cl7x（例如CsCe2Br7（1-x）Cl7x）的组成） ，其中A基本上由Li，NaK，Rb，Cs或其组合组成，M基本上由Ce，Sc，Y，La，Lu，Gd，Pr，Tb，Yb，Nd或 其任何组合。 此外，公开了制备上述组合物的卤化物闪烁体材料的方法。 在一个实例中，将高纯度起始卤化物（例如CsBr，CeBr 3，CsCl和CeCl 3）混合并熔融以合成所需闪烁体材料组成的化合物。 然后通过Bridgman方法从合成的化合物生长闪烁体材料的单晶。 公开的闪烁体材料适用于制造用于医学成像和国土安全等应用的闪烁检测器。
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公开(公告)号：US08692203B1
公开(公告)日：2014-04-08
申请号：US13098654
申请日：2011-05-02
CPC分类号： C30B29/12 , C09K11/7733 , C30B11/003 , G01T1/20 , G01T1/202 , G01T3/06 , G21K4/00
摘要： The present disclosure discloses, in one arrangement, a single crystalline iodide scintillator material having a composition of the formula AM1−xEuxI3, A3M1−xEuxI5 and AM2(1−x)Eu2xI5, wherein A consists essentially of any alkali metal element (such as Li, Na K, Rb, Cs) or any combination thereof, M consists essentially of Sr, Ca, Ba or any combination thereof, and 0≦x≦1. 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 iodide scintillator materials include radiation detectors and their use in medical and security imaging.
摘要翻译： 本公开在一种布置中公开了具有式AM1-xEuxI3，A3M1-xEuxI5和AM2（1-x）Eu2xI5组成的单结晶碘化物闪烁体材料，其中A基本上由任何碱金属元素（例如Li ，Na K，Rb，Cs）或其任何组合，M基本上由Sr，Ca，Ba或其任何组合组成，并且0和n 1; x和n 1; 在另一种布置中，上述单结晶碘化物闪烁体材料可以通过首先合成上述组成的化合物，然后通过例如垂直梯度冷冻法由合成的化合物形成单晶来制备。 碘化物闪烁体材料的应用包括辐射探测器及其在医疗和安全成像中的应用。
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公开(公告)号：US08598530B2
公开(公告)日：2013-12-03
申请号：US13098662
申请日：2011-05-02
IPC分类号： G01T1/20
CPC分类号： G21K4/00 , C09K11/7705 , C09K11/772 , C09K11/7773 , C30B11/00 , C30B29/12 , G21K2004/06
摘要： The present disclosure discloses, in one arrangement, a single crystalline chloride scintillator material having a composition of the formula A3MCl6, wherein A consists essentially of Cs and M consists essentially of Ce and Gd. In another arrangement, a chloride scintillator material is single-crystalline and has a composition of the formula AM2Cl7, wherein A consists essentially of Li, Na K, Rb, Cs or any combination thereof, and M consists essentially of Ce, Sc, Y, La, Lu, Gd, Pr, Tb, Yb, Nd or any combination thereof. Specific examples of these scintillator materials include single-crystalline Ce-doped KGd2Cl7 (KGd2(1-x)Ce2xCl7) and Ce-doped CsGd2Cl7(CsGd2(1-x)Ce2xCl7).
摘要翻译： 本公开在一种布置中公开了具有式A3MCl6组成的单晶氯化物闪烁体材料，其中A基本上由Cs组成，M基本上由Ce和Gd组成。 在另一种布置中，氯化物闪烁体材料是单晶的并且具有式AM2Cl7的组成，其中A基本上由Li，NaK，Rb，Cs或其任何组合组成，M基本上由Ce，Sc，Y， La，Lu，Gd，Pr，Tb，Yb，Nd或其任何组合。 这些闪烁体材料的具体实例包括单晶Ce掺杂的KGd2Cl7（KGd2（1-x）Ce2xCl7）和Ce掺杂的CsGd2Cl7（CsGd2（1-x）Ce2xCl7）。
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公开(公告)号：US20100090114A1
公开(公告)日：2010-04-15
申请号：US12569217
申请日：2009-09-29
CPC分类号： G01T1/1644 , G01T1/2008
摘要： A phoswich device for determining depth of interaction (DOI) includes a first scintillator having a first scintillation decay time characteristic, a second scintillator having a second scintillation decay time characteristic substantially equal to the first scintillation decay time, a photodetector coupled to the second scintillator, and a wavelength shifting layer coupled between the first scintillator and the second scintillator, wherein the wavelength shifting layer modifies the first scintillation decay time characteristic of the first scintillator to enable the photodetector to differentiate between the first decay time characteristic and the second decay time characteristic. The phoswich device is particularly applicable to positron emission tomography (PET) applications.
摘要翻译： 用于确定相互作用深度（DOI）的鉴定装置包括具有第一闪烁衰减时间特征的第一闪烁体，具有基本上等于第一闪烁衰减时间的第二闪烁衰减时间特性的第二闪烁体，耦合到第二闪烁体的光电检测器， 以及耦合在所述第一闪烁体和所述第二闪烁体之间的波长偏移层，其中所述波长移位层修改所述第一闪烁体的第一闪烁衰减时间特性，以使得所述光电检测器能够区分所述第一衰减时间特性和所述第二衰减时间特性。 特殊设备特别适用于正电子发射断层摄影（PET）应用。
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