Binary screen, system and method for single pulse dual energy radiography
    11.
    发明授权
    Binary screen, system and method for single pulse dual energy radiography 失效
    双脉冲双能量摄影的二维屏幕,系统和方法

    公开(公告)号:US5216252A

    公开(公告)日:1993-06-01

    申请号:US735060

    申请日:1991-07-24

    IPC分类号: C09K11/77 G21K4/00

    摘要: A binary screen, system and method for performing dual energy radiographic imaging, using single pulse x-rays, are depicted. The binary screen includes a first phosphor which emits light of a first wavelength and a second phosphor which emits light of a second wavelength. The first and second phosphors are heterogeneously dispersed in the binary screen. The first phosphor is preferably Gd.sub.2 O.sub.2 S:Eu.sup.+3 and the second phosphor is preferably Y.sub.2 O.sub.2 S:Gd.sup.+3. The second phosphor can also be Y.sub.2 O.sub.3 :Gd, Y.sub.2 O.sub.2 S:Pr or Y.sub.2 O.sub.2 S:Neodymium.

    摘要翻译: 描述了使用单脉冲X射线进行双能量射线照相成像的二进制屏幕,系统和方法。 二进制屏幕包括发射第一波长的光的第一荧光体和发射第二波长的光的第二荧光体。 第一和第二荧光体不均匀地分散在二元屏幕中。 第一荧光体优选为Gd 2 O 2 S:Eu + 3,第二荧光体优选为Y 2 O 2 S:Gd + 3。 第二个磷光体也可以是Y2O3:Gd,Y2O2S:Pr或Y2O2S:钕。

    Reproduction of X-ray images with photostimulable phosphor
    12.
    发明授权
    Reproduction of X-ray images with photostimulable phosphor 失效
    用可光激发荧光粉再现X射线图像

    公开(公告)号:US5034607A

    公开(公告)日:1991-07-23

    申请号:US504601

    申请日:1990-04-04

    IPC分类号: C09K11/77 G21K4/00

    摘要: A method for recording and reproducing an X-ray image comprising the steps of:(1) causing a photostimulable phosphor in a binder layer to absorb image-wise or pattern-wise modulated X-rays,(2) photostimulating said phosphor with stimulating electromagnetic radiation selected from visible light and infrared light to relase from the phosphor in accordance with the absorbed X-rays electromagnetic radiation different in wavelength characteristic from the radiation used in the photo-stimulation, and(3) detecting said light emitted by photostimulation, wherein said phosphor is an alkali earth metal(s) halogermanate or an alkali earth metal(s) halo(silicate-germanate) doped with Eu.sup.2+ and/or Ce.sup.3+ and/or thallium, and optionally co-doped with a rare earth metal ion other than Eu.sup.2+ or Ce.sup.3+ or with Na.sup.+, K.sup.+ or Li.sup.+ or a mixture of at least two of these co-dopants.

    摘要翻译: 一种用于记录和再现X射线图像的方法,包括以下步骤:(1)使粘合剂层中的可光激发的荧光体吸收图像或图案调制的X射线,(2)用刺激电磁法对所述荧光体进行光刺激 从可见光和红外光中选择的辐射根据吸收的与光刺激中使用的辐射不同的波长特性的X射线电磁辐射从磷光体中脱离,以及(3)检测由光刺激发射的所述光,其中所述 磷光体是掺杂有Eu 2+和/或Ce 3+和/或铊的卤代锗酸盐或碱土金属的卤代(硅酸盐 - 锗酸盐),并且任选地与除Eu2 +之外的稀土金属离子共掺杂, 或Ce 3+或与Na +,K +或Li +或这些共掺杂剂中的至少两种的混合物。

    Silicon sensitized rare earth oxysulfide phosphors
    13.
    发明授权
    Silicon sensitized rare earth oxysulfide phosphors 失效
    硅敏化稀土氧硫化物荧光体

    公开(公告)号:US3980887A

    公开(公告)日:1976-09-14

    申请号:US567200

    申请日:1975-04-11

    IPC分类号: C09K11/77 C09K11/84 G01T1/00

    CPC分类号: C09K11/7771

    摘要: Rare earth oxysulfide phosphors with excellent optical properties and optimum particle size control for use as photoluminescent, cathodoluminescent and X-ray luminescent phosphors are prepared by treating a solution of at least one salt of a rare earth metal and a salt of a rare earth activator to form solid salts and thereafter heating the oxidic compound with a sulfidizing agent and a silicon sensitizer, preferably in the presence of a fluoride. The rare earth oxysulfide phosphors thus obtained contain from 10 to 1,000 p.p.m. silicon sensitizer and, if used, 20 to 500 p.p.m. fluoride, incorporated in the crystal lattice structure.

    摘要翻译: 通过将至少一种稀土金属盐和稀土活化剂的盐的溶液处理,制备具有优异的光学性质和用于光致发光,阴极发光和X射线发光荧光体的最佳粒径控制的稀土氧硫化物荧光体, 形成固体盐,然后用硫化剂和硅增感剂加热氧化化合物,优选在氟化物的存在下。 由此获得的稀土氧硫化物荧光体含有10至1,000p.p.m。 硅增感剂,如果使用,则为20至500p.p.m。 氟化物,并入晶格结构。