Minimizing radiation damage in nonlinear optical crystals
    1.
    发明授权
    Minimizing radiation damage in nonlinear optical crystals 失效
    最大限度地减少非线性光学晶体的辐射损伤

    公开(公告)号:US5880871A

    公开(公告)日:1999-03-09

    申请号:US013323

    申请日:1998-01-26

    IPC分类号: G02F1/35 G02F1/03

    摘要: Methods are disclosed for minimizing laser induced damage to nonlinear crystals, such as KTP crystals, involving various means for electrically grounding the crystals in order to diffuse electrical discharges within the crystals caused by the incident laser beam. In certain embodiments, electrically conductive material is deposited onto or into surfaces of the nonlinear crystals and the electrically conductive surfaces are connected to an electrical ground. To minimize electrical discharges on crystal surfaces that are not covered by the grounded electrically conductive material, a vacuum may be created around the nonlinear crystal.

    摘要翻译: 公开了用于最小化非线性晶体(例如KTP晶体)的激光诱发损伤的方法,涉及用于电接地晶体的各种装置,以便扩散由入射激光束引起的晶体内的放电。 在某些实施例中,导电材料沉积在非线性晶体的表面上或其上,并且导电表面连接到电气接地。 为了最小化未被接地的导电材料覆盖的晶体表面上的放电,可能在非线性晶体周围产生真空。

    Nanocomposite scintillator, detector, and method
    4.
    发明授权
    Nanocomposite scintillator, detector, and method 失效
    纳米复合闪烁体,检测器和方法

    公开(公告)号:US07525094B2

    公开(公告)日:2009-04-28

    申请号:US11644246

    申请日:2006-12-21

    IPC分类号: G01T1/20

    CPC分类号: H01L31/02161 H01L31/115

    摘要: A compact includes a mixture of a solid binder and at least one nanopowder phosphor chosen from yttrium oxide, yttrium tantalate, barium fluoride, cesium fluoride, bismuth germanate, zinc gallate, calcium magnesium pyrosilicate, calcium molybdate, calcium chlorovanadate, barium titanium pyrophosphate, a metal tungstate, a cerium doped nanophosphor, a bismuth doped nanophosphor, a lead doped nanophosphor, a thallium doped sodium iodide, a doped cesium iodide, a rare earth doped pyrosilicate, or a lanthanide halide. The compact can be used in a radiation detector for detecting ionizing radiation.

    摘要翻译: 压块包括固体粘合剂和至少一种纳米粉末荧光体的混合物,其选自氧化钇,钽酸钇,氟化钡,氟化铯,锗酸铋,没食子酸锌,焦硅酸钙镁,钼酸钙,氯代钒酸钙,焦磷酸钡钛, 金属钨酸盐,掺铈纳米荧光体,铋掺杂纳米荧光体,引线掺杂纳米荧光体,铊掺杂的碘化钠,掺杂的碘化铯,稀土掺杂的焦硅酸盐或镧系元素卤化物。 该紧凑件可用于检测电离辐射的辐射检测器中。

    Flexible composite radiation detector
    6.
    发明授权
    Flexible composite radiation detector 失效
    柔性复合辐射探测器

    公开(公告)号:US07145149B2

    公开(公告)日:2006-12-05

    申请号:US10946025

    申请日:2004-09-21

    IPC分类号: C09K11/08

    CPC分类号: C09K11/7774 G21K4/00

    摘要: A flexible composite scintillator was prepared by mixing fast, bright, dense rare-earth doped powdered oxyorthosilicate (such as LSO:Ce, LSO:Sm, and GSO:Ce) scintillator with a polymer binder. The binder is transparent to the scintillator emission. The composite is seamless and can be made large and in a wide variety of shapes. Importantly, the composite can be tailored to emit light in a spectral region that matches the optimum response of photomultipliers (about 400 nanometers) or photodiodes (about 600 nanometers), which maximizes the overall detector efficiency.

    摘要翻译: 通过将快速,光亮,致密的稀土掺杂的粉末状氧基原硅酸盐(例如LSO:Ce,LSO:Sm和GSO:Ce)闪烁体与聚合物粘合剂混合来制备柔性复合闪烁体。 粘合剂对闪烁体发射是透明的。 复合材料是无缝的,可以制成大型和多种形状。 重要的是,复合材料可以调整为在与光电倍增管(约400纳米)或光电二极管(约600纳米))的最佳响应相匹配的光谱区域发光,从而使整体检测器效率最大化。