Rare-earth oxyorthosilicate scintillator crystals and method of making rare-earth oxyorthosilicate scintillator crystals
    13.
    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。

    Radiation Detection With Optical Amplification
    14.
    发明申请
    Radiation Detection With Optical Amplification 有权
    光放大放射检测

    公开(公告)号:US20130032722A1

    公开(公告)日:2013-02-07

    申请号:US13426667

    申请日:2012-03-22

    IPC分类号: G01T1/205 G01T1/20 G01T1/204

    CPC分类号: G01T1/20 G01T1/22 G01T1/2978

    摘要: A device for detecting ionizing radiation includes a radiation interaction region configured to generate light in response to an interaction with the ionizing radiation, an optical gain medium region in optical communication with the radiation interaction region and configured to amplify the light, and an energy source coupled to the optical gain medium region and configured to maintain a state of population inversion in the optical gain medium region. The optical gain medium region has an emission wavelength that corresponds with a wavelength of the light generated by the radiation interaction region.

    摘要翻译: 用于检测电离辐射的装置包括被配置为响应于与电离辐射的相互作用而产生光的辐射相互作用区域,与辐射相互作用区域光学通信并被配置为放大光的光学增益介质区域,以及耦合的能量源 并且被配置为保持光学增益介质区域中的总体反转状态。 光学增益介质区域具有与由辐射相互作用区域产生的光的波长相对应的发射波长。

    Rare-Earth Oxyorthosilicate Scintillator Crystals and Method of Making Rare-Earth Oxyorthosilicate Scintillator Crystals
    16.
    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

    IPC分类号: C09K11/79 C30B15/00

    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。

    Iodide scintillator for radiation detection
    18.
    发明授权
    Iodide scintillator for radiation detection 有权
    碘化物闪烁体用于辐射检测

    公开(公告)号:US08692203B1

    公开(公告)日:2014-04-08

    申请号:US13098654

    申请日:2011-05-02

    IPC分类号: G01T1/10 G01T1/20

    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。

    Radiation detection with optical amplification
    19.
    发明授权
    Radiation detection with optical amplification 有权
    具有光放大的辐射检测

    公开(公告)号:US08674312B2

    公开(公告)日:2014-03-18

    申请号:US13426667

    申请日:2012-03-22

    IPC分类号: G01T1/20

    CPC分类号: G01T1/20 G01T1/22 G01T1/2978

    摘要: A device for detecting ionizing radiation includes a radiation interaction region configured to generate light in response to an interaction with the ionizing radiation, an optical gain medium region in optical communication with the radiation interaction region and configured to amplify the light, and an energy source coupled to the optical gain medium region and configured to maintain a state of population inversion in the optical gain medium region. The optical gain medium region has an emission wavelength that corresponds with a wavelength of the light generated by the radiation interaction region.

    摘要翻译: 用于检测电离辐射的装置包括被配置为响应于与电离辐射的相互作用而产生光的辐射相互作用区域,与辐射相互作用区域光学通信并被配置为放大光的光学增益介质区域,以及耦合的能量源 并且被配置为保持光学增益介质区域中的总体反转状态。 光学增益介质区域具有与由辐射相互作用区域产生的光的波长相对应的发射波长。

    Chloride scintillator for radiation detection
    20.
    发明授权
    Chloride scintillator for radiation detection 有权
    氯化物闪烁体用于辐射检测

    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

    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)。