Radiation Detection Utilizing Optical Bleaching
    1.
    发明申请
    Radiation Detection Utilizing Optical Bleaching 有权
    使用光学漂白的辐射检测

    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。

    Radiation detection utilizing optical bleaching
    2.
    发明授权
    Radiation detection utilizing optical bleaching 有权
    利用光学漂白的辐射检测

    公开(公告)号:US09140807B2

    公开(公告)日:2015-09-22

    申请号:US14044896

    申请日:2013-10-03

    IPC分类号: G01T1/20 G01T1/202

    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。

    Rare-earth oxyorthosilicate scintillator crystals and method of making rare-earth oxyorthosilicate scintillator crystals
    5.
    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

    CPC分类号: C30B29/34 C30B15/04

    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。

    Rare-earth oxyorthosilicate scintillator crystals and method of making rare-earth oxyorthosilicate scintillator crystals
    9.
    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

    CPC分类号: C30B29/34 C30B15/04

    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。