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1.发明授权Rare-earth oxyorthosilicate scintillator crystals and method of making rare-earth oxyorthosilicate scintillator crystals 有权稀土氧原硅酸盐闪烁体晶体及稀土氧原硅酸盐闪烁体晶体的制备方法公开(公告)号：US08062419B1
公开(公告)日：2011-11-22
申请号：US12967442
申请日：2010-12-14
IPC分类号： C30B29/22
摘要： A method of making LSO scintillators with high light yield and short decay times is disclosed. In one arrangement, the method includes codoping LSO with cerium and another dopant from the IIA or IIB group of the periodic table of elements. The doping levels are chosen to tune the decay time of scintillation pulse within a broader range (between about ˜30 ns up to about ˜50 ns) than reported in the literature, with improved light yield and uniformity. In another arrangement, relative concentrations of dopants are chosen to achieve the desired light yield and decay time while ensuring crystal growth stability.
摘要翻译： 公开了一种制造具有高光产量和短衰减时间的LSO闪烁体的方法。 在一种布置中，该方法包括与元素的周期表的IIA或IIB族的铈和另一种掺杂剂的LSO共掺杂。 选择掺杂水平来调节闪烁脉冲在比文献中报道的更宽范围（约〜30ns至约〜50ns）之间的衰减时间，具有改善的光产量和均匀性。 在另一种布置中，选择掺杂剂的相对浓度以获得期望的光产率和衰变时间，同时确保晶体生长稳定性。
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2.发明申请Suppression Of Crystal Growth Instabilities During Production Of Rare-Earth Oxyorthosilicate Crystals 有权在稀土氧化硅酸盐晶体生产过程中抑制晶体生长不稳定性公开(公告)号：US20120080645A1
公开(公告)日：2012-04-05
申请号：US12894494
申请日：2010-09-30
摘要： Disclosed are a method of growing a rare-earth oxyorthosilicate crystal and a crystal grown using the method. A melt is prepared by melting a first substance including at least one rare-earth element and a second substance including at least one element from group 7 of the periodic table. A seed crystal is brought into contact with the surface of the melt and withdrawn to grow the crystal.
摘要翻译： 公开了一种生长稀土氧基原硅酸盐晶体的方法和使用该方法生长的晶体。 通过熔融含有至少一种稀土元素的第一物质和包含元素周期表第7族中的至少一种元素的第二物质来制备熔体。 将晶种与熔体的表面接触并取出以使晶体生长。
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3.发明授权Rare-earth oxyorthosilicate scintillator crystals and method of making rare-earth oxyorthosilicate scintillator crystals 有权稀土氧原硅酸盐闪烁体晶体及稀土氧原硅酸盐闪烁体晶体的制备方法公开(公告)号：US08394195B2
公开(公告)日：2013-03-12
申请号：US13359528
申请日：2012-01-27
IPC分类号： C30B29/12
摘要： A method of making LSO scintillators with high light yield and short decay times is disclosed. In one arrangement, the method includes codoping LSO with cerium and another dopant from the IIA or IIB group of the periodic table of elements. The doping levels are chosen to tune the decay time of scintillation pulse within a broader range (between about ˜30 ns up to about ˜50 ns) than reported in the literature, with improved light yield and uniformity. In another arrangement, relative concentrations of dopants are chosen to achieve the desired light yield and decay time while ensuring crystal growth stability.
摘要翻译： 公开了一种制造具有高光产量和短衰减时间的LSO闪烁体的方法。 在一种布置中，该方法包括与元素的周期表的IIA或IIB族的铈和另一种掺杂剂的LSO共掺杂。 选择掺杂水平来调节闪烁脉冲在比文献中报道的更宽范围（约〜30ns至约〜50ns）之间的衰减时间，具有改善的光产量和均匀性。 在另一种布置中，选择掺杂剂的相对浓度以获得期望的光产率和衰变时间，同时确保晶体生长稳定性。
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公开(公告)号：US20120145964A1
公开(公告)日：2012-06-14
申请号：US13359528
申请日：2012-01-27
摘要： A method of making LSO scintillators with high light yield and short decay times is disclosed. In one arrangement, the method includes codoping LSO with cerium and another dopant from the IIA or IIB group of the periodic table of elements. The doping levels are chosen to tune the decay time of scintillation pulse within a broader range (between about ˜30 ns up to about ˜50 ns) than reported in the literature, with improved light yield and uniformity. In another arrangement, relative concentrations of dopants are chosen to achieve the desired light yield and decay time while ensuring crystal growth stability.
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5.发明申请Rare-Earth Oxyorthosilicate Scintillator Crystals and Method of Making Rare-Earth Oxyorthosilicate Scintillator Crystals 审中-公开稀土氧硅酸钠闪烁体晶体及稀土氧硅酸钙闪烁体晶体的制备方法公开(公告)号：US20120145963A1
公开(公告)日：2012-06-14
申请号：US13276446
申请日：2011-10-19
摘要： A method of making LSO scintillators with high light yield and short decay times is disclosed. In one arrangement, the method includes codoping LSO with cerium and another dopant from the IIA or IIB group of the periodic table of elements. The doping levels are chosen to tune the decay time of scintillation pulse within a broader range (between about ˜30 ns up to about ˜50 ns) than reported in the literature, with improved light yield and uniformity. In another arrangement, relative concentrations of dopants are chosen to achieve the desired light yield and decay time while ensuring crystal growth stability.
摘要翻译： 公开了一种制造具有高光产量和短衰减时间的LSO闪烁体的方法。 在一种布置中，该方法包括与元素的周期表的IIA或IIB族的铈和另一种掺杂剂的LSO共掺杂。 选择掺杂水平来调节闪烁脉冲在比文献中报道的更宽范围（约〜30ns至约〜50ns）之间的衰减时间，具有改善的光产量和均匀性。 在另一种布置中，选择掺杂剂的相对浓度以获得期望的光产率和衰变时间，同时确保晶体生长稳定性。
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6.发明授权Suppression of crystal growth instabilities during production of rare-earth oxyorthosilicate crystals 有权在稀土氧化原硅酸盐晶体生产过程中抑制晶体生长不稳定公开(公告)号：US09175420B2
公开(公告)日：2015-11-03
申请号：US12894494
申请日：2010-09-30
摘要： Disclosed are a method of growing a rare-earth oxyorthosilicate crystal and a crystal grown using the method. A melt is prepared by melting a first substance including at least one rare-earth element and a second substance including at least one element from group 7 of the periodic table. A seed crystal is brought into contact with the surface of the melt and withdrawn to grow the crystal.
摘要翻译： 公开了一种生长稀土氧基原硅酸盐晶体的方法和使用该方法生长的晶体。 通过熔融含有至少一种稀土元素的第一物质和包含元素周期表第7族中的至少一种元素的第二物质来制备熔体。 将晶种与熔体的表面接触并取出以使晶体生长。
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公开(公告)号：US20120126171A1
公开(公告)日：2012-05-24
申请号：US12953582
申请日：2010-11-24
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。
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8.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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9.发明授权PET scanner with emission and transmission structures in a checkerboard configuration 有权PET扫描仪，带有排列和传输结构的棋盘配置公开(公告)号：US08866086B2
公开(公告)日：2014-10-21
申请号：US13198804
申请日：2011-08-05
申请人： Christian J. Michel , Maurizio Conti , Ronald Grazioso , Piotr Szupryczynski , A. Andrew Carey , Larry Byars
发明人： Christian J. Michel , Maurizio Conti , Ronald Grazioso , Piotr Szupryczynski , A. Andrew Carey , Larry Byars
CPC分类号： G01T1/2985 , A61B6/037 , G01T1/1615 , G01T1/202
摘要： Apparatuses, computer-readable mediums, and methods are provided. In one embodiment, a positron emission tomography (“PET”) detector array is provided which includes a plurality of crystal elements arranged in a two-dimensional checkerboard configuration. In addition, there are empty spaces in the checkerboard configuration. In various embodiments, the empty spaces are filled with passive shielding, transmission source assemblies, biopsy instruments, surgical instruments, and/or electromagnetic sensors. In various embodiments, the crystal elements and the transmission source assemblies simultaneously perform emission/transmission acquisitions.
摘要翻译： 提供了设备，计算机可读介质和方法。 在一个实施例中，提供了包括以二维棋盘配置布置的多个晶体元件的正电子发射断层摄影（“PET”）检测器阵列。 另外，棋盘配置中有空格。 在各种实施例中，空的空间填充有无源屏蔽，传输源组件，活检仪器，外科器械和/或电磁传感器。 在各种实施例中，晶体元件和传输源组件同时执行发射/传输采集。
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公开(公告)号：US20140097346A1
公开(公告)日：2014-04-10
申请号：US14044896
申请日：2013-10-03
IPC分类号： G01T1/20
CPC分类号： G01T1/20 , G01T1/2018 , G01T1/202
摘要： A method and device for improving the optical performance (such as time resolution) of scintillation detectors using the optical bleaching technique are disclosed. Light of a selected wavelength is emitted by a light source into a scintillator. The wavelength is selected to meet the minimum energy requirement for releasing of charge carriers captured by the charge carrier traps in the scintillation material. Trap-mediated scintillation components are thus reduced by optical bleaching and the optical performance of the scintillator crystal and the detector is enhanced.
摘要翻译： 公开了一种用于改善使用光学漂白技术的闪烁检测器的光学性能（例如时间分辨率）的方法和装置。 所选波长的光由光源发射到闪烁体中。 选择波长以满足释放由闪烁材料中的电荷载流子阱俘获的电荷载体的最小能量需求。 因此通过光学漂白减少陷阱介导的闪烁成分，提高闪烁体晶体和检测器的光学性能。
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