SiC photodiode detectors for radiation detection applications
    14.
    发明授权
    SiC photodiode detectors for radiation detection applications 有权
    用于辐射检测应用的SiC光电二极管检测器

    公开(公告)号:US06768326B2

    公开(公告)日:2004-07-27

    申请号:US09682636

    申请日:2001-10-01

    IPC分类号: G01R31302

    CPC分类号: G01T1/2018

    摘要: A radiation detector includes: a scintillator which produces UV photons in response to receiving radiation from a radiation producing source; and, a wide bandgap semiconductor device sensitive to the UV photons produced by the scintillator. The semiconductor device produces an electric signal as a function of the amount of UV photons incident thereon. Preferably, the electric signal is then measure, recorded and/or otherwise analyzed.

    摘要翻译: 辐射检测器包括:闪烁体,其响应于接收来自辐射产生源的辐射而产生UV光子; 以及对由闪烁体产生的UV光子敏感的宽带隙半导体器件。 半导体器件产生作为入射在其上的UV光子的量的函数的电信号。 优选地,然后测量,记录和/或以其他方式分析电信号。

    KIMZEYITE GARNET PHOSPHORS
    15.
    发明申请

    公开(公告)号:US20110089817A1

    公开(公告)日:2011-04-21

    申请号:US12582969

    申请日:2009-10-21

    IPC分类号: H01J1/62 C09K11/08 C09K11/77

    摘要: A phosphor of formula I is included in a phosphor composition in a lighting apparatus capable of emitting white light, Ca3-x-zSrxCezM21M2AlSiO12  (I) wherein M1 is Hf, Zr, or a combination thereof; M2 is Al, or a combination of Al and Ga; z x≧0. The lighting apparatus includes a semiconductor light source in addition to the phosphor composition.

    摘要翻译: 在能够发出白光的照明装置中的荧光体组合物中包含式I的荧光体,其中M1为Hf,Zr或其组合的Ca3-x-zSrxCezM21M2AlSiO12(I) M2是Al或Al和Ga的组合; z <3-x; 和0.2>x≥0。 除了荧光体组合物之外,照明装置还包括半导体光源。

    Scintillation apparatus and method of light collection for use with a radiation emitting medical imaging scanner
    17.
    发明授权
    Scintillation apparatus and method of light collection for use with a radiation emitting medical imaging scanner 有权
    用于辐射发射医学成像扫描仪的闪烁装置和光收集方法

    公开(公告)号:US06516044B1

    公开(公告)日:2003-02-04

    申请号:US09682842

    申请日:2001-10-23

    IPC分类号: A61B600

    CPC分类号: A61B6/00 G01T1/2002

    摘要: An improved scintillator detector cell geometry for converting radiation to light with improved light collection is provided. Shaping the exit face of a scintillator to increase the surface area of the exit face results in a decrease in a fraction of angles that undergo total internal reflection within the scintillator. The scintillator has the advantage of preventing total internal reflection parallel, as well as perpendicular, to the detecting surface of a light collection device. Further, providing a specular reflector on a hemispherical dome portion of the radiation detecting surface of the scintillator results in reduced bounce-off the specular reflector before light contacts the scintillator-photodiode interface. Furthermore, implementing a convex shape when coated with the specular reflector increases the fraction of light directed toward the photodiode compared to a plane surface parallel to the photodiode. The present invention further limits the amount of light that is trapped within the scintillator.

    摘要翻译: 提供了一种改进的闪烁体检测器单元几何形状,用于将辐射转换成具有改进的光收集的光。 使闪烁体的出射面成形以增加出射面的表面积导致在闪烁体内进行全内反射的角度分数的减小。 闪烁体具有防止全内反射与光收集装置的检测表面平行且垂直的优点。 此外,在闪烁体的辐射检测表面的半球形圆顶部分上提供镜面反射器导致在光接触闪烁体 - 光电二极管接口之前反射镜的反射率降低。 此外,当涂覆有镜面反射镜时实现凸形状,与平行于光电二极管的平面相比增加了朝向光电二极管的光的分数。 本发明进一步限制了闪烁体内被捕获的光的量。

    Coated phosphors, methods of making them, and articles comprising the same
    18.
    发明授权
    Coated phosphors, methods of making them, and articles comprising the same 有权
    涂布的荧光体,制造它们的方法和包含它们的制品

    公开(公告)号:US08377334B2

    公开(公告)日:2013-02-19

    申请号:US12646205

    申请日:2009-12-23

    IPC分类号: C09K11/08 B32B9/00

    摘要: Compositions comprising a phosphor and a compound having the formula R1R2M, wherein R1 is a substituted or unsubstituted alkyl, aryl, heteroaryl, arylalkyl, heteroarylalkyl, alkoxy, alkoxyl, acyl heterocycle, haloalkyl, oxaalkyl, or silyl; R2 is a sulfate, sulfonate, or carboxylate and M is an alkali metal or an alkaline earth metal are provided. Phosphors coated with the compound, methods of making the coated phosphors and articles comprising the compositions are provided.

    摘要翻译: 包含磷光体和具有式R1R2M的化合物的组合物,其中R1是取代或未取代的烷基,芳基,杂芳基,芳基烷基,杂芳基烷基,烷氧基,烷氧基,酰基杂环,卤代烷基,氧杂烷基或甲硅烷基。 R2是硫酸根,磺酸根或羧酸根,并且M是碱金属或碱土金属。 提供涂覆有化合物的荧光体,制备涂覆的荧光体的方法和包含该组合物的制品。

    METHOD FOR REMOVAL OF CORES FROM NIOBIUM-BASED PART, AND RELATED CASTING PROCESS
    20.
    发明申请
    METHOD FOR REMOVAL OF CORES FROM NIOBIUM-BASED PART, AND RELATED CASTING PROCESS 审中-公开
    从基于铌的部件去除晶圆的方法和相关的铸造工艺

    公开(公告)号:US20080295988A1

    公开(公告)日:2008-12-04

    申请号:US12167774

    申请日:2008-07-03

    IPC分类号: C01F17/00

    CPC分类号: B22D29/002

    摘要: A method of removing an yttria-based core from a niobium-based part is described. In the method, the core is treated with an effective amount of a leaching composition. The leaching composition is based on nitric acid, or a combination of nitric acid and phosphoric acid. The core material is effectively removed from the niobium-based part, and the process of removing the core does not detrimentally affect the quality of the part. Related casting techniques for various niobium-based parts are also described.

    摘要翻译: 描述了从基于铌的部件去除基于氧化钇的芯的方法。 在该方法中,用有效量的浸出组合物处理核。 浸出组合物基于硝酸或硝酸和磷酸的组合。 核心材料被有效地从铌基部分除去,并且去除芯的过程不会不利地影响部件的质量。 还描述了各种铌基部件的相关铸造技术。