Neutron Scintillator and Neutron Detector
    6.
    发明申请
    Neutron Scintillator and Neutron Detector 审中-公开
    中子闪烁体和中子检测器

    公开(公告)号:US20160202363A1

    公开(公告)日:2016-07-14

    申请号:US14915034

    申请日:2014-08-28

    IPC分类号: G01T3/06 G21K4/00

    摘要: [Object] To provide a neutron scintillator that is constituted of a resin composition including inorganic fluorescent substance particles and has an excellent neutron/γ ray discrimination ability even when an optical transparency of the resin composition is poor due to a discrepancy of refractive indices and the like and fluorescence due to neutrons cannot be taken out sufficiently.[Solving Means] In a neutron scintillator constituted of a resin composition including a resin and inorganic fluorescent substance particles that include at least one type of neutron capture isotope selected from lithium-6 and boron-10, such as Eu:LiCaAlF6, the resin composition additionally includes a neutron-insensitive fluorescent substance having a different fluorescence property. Neutrons and γ rays can be discriminated using a difference in the fluorescence property such as a fluorescence lifetime and an emission wavelength between the case where neutrons enter and the case where γ rays enter.

    摘要翻译: 本发明提供一种由含有无机荧光物质粒子的树脂组合物构成的中子闪烁体,即使当由于折射率差异而导致树脂组合物的光学透明性差时也具有优异的中子/γ射线识别能力, 不能充分取出由于中子引起的荧光和荧光。 [解决方案]在包含树脂的树脂组合物和包含选自如下的至少一种中子捕获同位素的无机荧光物质颗粒的中子闪烁体中,所述中子俘获同位素如Eu:LiCaAlF 6,所述树脂组合物 还包括具有不同荧光特性的中子不敏感荧光物质。 可以使用中子入射的情况与γ射线入射的情况之间的荧光性质如荧光寿命和发射波长的差异来区分中子和γ射线。

    Multiple-chip excitation systems for white light emitting diodes (LEDs)
    7.
    发明授权
    Multiple-chip excitation systems for white light emitting diodes (LEDs) 有权
    用于白光发光二极管(LED)的多芯片激励系统

    公开(公告)号:US09324923B2

    公开(公告)日:2016-04-26

    申请号:US14045765

    申请日:2013-10-03

    摘要: Embodiments of the present invention are directed toward white light illumination systems (so called “white LEDs”) that comprise a multi-chip excitation source and a phosphor package. In a two-chip source, the two LEDs may be UV-emitting and blue emitting, or blue-emitting and green-emitting. The phosphor package is configured to emit photoluminescence in wavelengths ranging from about 440 nm to about 700 nm upon co-excitation from the first and second radiation sources. The photoluminescence emitted by the phosphors is at least 40 percent of the total power in the white light illumination, and the portion of the total power in the white light illumination contributed by the first and second radiation sources (LEDs) is less than about 60 percent. This ratio can vary in alternative embodiments, and includes 50/50, 60/40, 70/30, and 80/20, respectively. The white light illumination emitted by the system has in one embodiment a color rendering index (CRI) greater than about 90.

    摘要翻译: 本发明的实施例涉及包括多芯片激发源和磷光体封装的白光照明系统(所谓的“白光LED”)。 在双芯片源中,两个LED可以是UV发射和蓝色发射,或发蓝光和绿色发射。 磷光体封装被配置为在从第一和第二辐射源共激发时发射波长为约440nm至约700nm的光致发光。 由荧光体发射的光致发光是白光照射中总功率的至少40%,由第一和第二辐射源(LED)贡献的白光照射中的总功率的部分小于约60% 。 该比例可以在替代实施例中变化,并且分别包括50/50,60 / 40,70 / 30和80/20。 系统发出的白光照明在一个实施例中是显色指数(CRI)大于约90。

    CHLORIDE, BROMIDE AND IODIDE SCINTILLATORS WITH EUROPEAN DOPING
    9.
    发明申请
    CHLORIDE, BROMIDE AND IODIDE SCINTILLATORS WITH EUROPEAN DOPING 审中-公开
    氯化物,溴化物和碘化物发光二极管

    公开(公告)号:US20140363674A1

    公开(公告)日:2014-12-11

    申请号:US14314393

    申请日:2014-06-25

    IPC分类号: C09K11/77 C30B29/12

    摘要: A halide scintillator material is disclosed where the halide may comprise chloride, bromide or iodide. The material is single-crystalline and has a composition of the general formula ABX3 where A is an alkali, B is an alkali earth and X is a halide which general composition was investigated. In particular, crystals of the formula ACa1-yEuyI3 where A=K, Rb and Cs were formed as well as crystals of the formula CsA1-yEuyX3 (where A=Ca, Sr, Ba, or a combination thereof and X=Cl. Br or I or a combination thereof) with divalent Europium doping where 0≦z≦1, and more particularly Eu doping has been studied at one to ten mol %. The disclosed scintillator materials are suitable for making scintillation detectors used in applications such as medical imaging and homeland security.

    摘要翻译: 公开了卤化物闪烁体材料,其中卤化物可以包括氯化物,溴化物或碘化物。 该材料是单晶的并且具有通式ABX3的组成,其中A是碱,B是碱土,X是一般组成的卤化物。 特别地,形成式ACa1-yEuyI3的晶体,其中A = K,Rb和Cs以及式CsAl-yEuyX3的晶体(其中A = Ca,Sr,Ba或其组合,X = Cl。Br 或I或其组合)与二价铕掺杂,其中0和nlE; z和nlE; 1,更特别是Eu掺杂已经以1至10mol%进行了研究。 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。

    BARIUM IODIDE AND STRONTIUM IODIDE CRYSTALS AND SCINTILLATORS IMPLEMENTING THE SAME
    10.
    发明申请
    BARIUM IODIDE AND STRONTIUM IODIDE CRYSTALS AND SCINTILLATORS IMPLEMENTING THE SAME 有权
    碘化铋和碘化铱晶体和晶体管实现相同

    公开(公告)号:US20140361221A1

    公开(公告)日:2014-12-11

    申请号:US14220904

    申请日:2014-03-20

    IPC分类号: C09K11/77 C30B11/00

    摘要: In one embodiment, a crystal includes at least one metal halide; and an activator dopant comprising ytterbium. In another general embodiment, a scintillator optic includes: at least one metal halide doped with a plurality of activators, the plurality of activators comprising: a first activator comprising europium, and a second activator comprising ytterbium. In yet another general embodiment, a method for manufacturing a crystal suitable for use in a scintillator includes mixing one or more salts with a source of at least one dopant activator comprising ytterbium; heating the mixture above a melting point of the salt(s); and cooling the heated mixture to a temperature below the melting point of the salts. Additional materials, systems, and methods are presented.

    摘要翻译: 在一个实施方案中,晶体包括至少一种金属卤化物; 和包含镱的活化剂掺杂剂。 在另一个一般实施方案中,闪烁体光学元件包括:至少一种掺杂有多个激活剂的金属卤化物,所述多个激活剂包括:包含铕的第一活化剂和包含镱的第二活化剂。 在另一个一般实施方案中,适用于闪烁体的晶体的制造方法包括将一种或多种盐与至少一种包含镱的掺杂剂活化剂的源混合; 将所述混合物加热至所述盐的熔点以上; 并将加热的混合物冷却至低于盐的熔点的温度。 介绍了其他材料,系统和方法。