Radiographic intensifying screens
    2.
    发明授权
    Radiographic intensifying screens 失效
    射线增强屏

    公开(公告)号:US4149083A

    公开(公告)日:1979-04-10

    申请号:US775520

    申请日:1977-03-08

    IPC分类号: G03C5/17 G21K4/00 G01J1/58

    CPC分类号: G03C5/17 G21K4/00

    摘要: An X-ray image intensifying screen comprising (1) a layer (which may be a supported layer or a self-supporting layer) containing fluorescent light-emitting phosphor particles including one or more rare-earth metal compounds and (2) a light-diffusing layer or sheet, which contains numerous discrete light-scattering volumes of a substance or substances distributed at random in a binder medium or partially embedded therein, such volumes having a mean size not larger than 20 .mu.m, said layer or sheet being located so that fluorescent light of said phosphor particles can penetrate therethrough to the outside of said screen.

    摘要翻译: 一种X射线图像增强屏幕,包括:(1)包含含有一种或多种稀土金属化合物的荧光发光荧光体颗粒的层(可以是支撑层或自支撑层)和(2) 扩散层或片材,其包含许多离散的光散射体积的物质或物质在粘合剂介质中无规分布或部分地嵌入其中,所述体积具有不大于20μm的平均尺寸,所述层或片材位于 所述荧光体颗粒的荧光可以穿透其穿过所述屏幕的外部。

    X-Ray image intensifying screens comprising rare-earth oxyhalide
phosphor particles
    3.
    发明授权
    X-Ray image intensifying screens comprising rare-earth oxyhalide phosphor particles 失效
    X射线图像增强屏幕包括稀土卤氧化物荧光体颗粒

    公开(公告)号:US4224524A

    公开(公告)日:1980-09-23

    申请号:US970999

    申请日:1978-12-19

    摘要: An X-ray image intensifying screen, which includes in a binder layer rare-earth oxyhalide phosphor particles that are in contact or admixed with an inorganic or organic substance or mixture of substances bringing about that the fluorescence power of said oxyhalide phosphor particles is less prone to be reduced by moisture, said substance being a non-phosphor substance or a phosphor substance other than calcium tungstate and producing hydroxyl ions when put in water, wherein the hydroxyl ion production power of said substance is such that when putting said substance in water at 25.degree. C. in an amount of 0.1 equivalent per liter a pH of at least 8.0 is obtained and the solubility in water of said substance is such that at least 0.05 g of said substance is soluble in 100 ml of water at 20.degree. C.

    摘要翻译: 一种X射线图像增强屏幕,其包括在与无机或有机物质或物质混合物接触或混合的粘结剂层中的稀土卤氧化物荧光体颗粒,导致所述卤氧化物荧光体颗粒的荧光强度不太 所述物质是除了钨酸钙以外的非磷光体物质或荧光物质,并且在投入水中时产生羟基离子,其中所述物质的羟基离子产生能力使得当将所述物质置于水中时 25℃,每升0.1当量,获得至少8.0的pH,并且所述物质在水中的溶解度使得至少0.05g所述物质可溶于100ml水中。

    Fluorscent X-ray image intensifying screen
    4.
    发明授权
    Fluorscent X-ray image intensifying screen 失效
    荧光X射线图像增强屏幕

    公开(公告)号:US4205116A

    公开(公告)日:1980-05-27

    申请号:US897438

    申请日:1978-04-18

    摘要: X-ray image intensifying screen including at least one fluorescent layer comprising phosphor particles dispersed in a binder and on top of such layer a protective layer containing a crosslinked polymer mass obtained by an acid-catalyzed reaction of a polymer or mixture of polymers containing reactive hydrogen atoms and a crosslinking agent, the crosslinking agent being an organic compound containing a plurality of etherified N-methylol groups.

    摘要翻译: X射线图像增强屏包括至少一个包含分散在粘合剂中的荧光体颗粒的荧光层,并且在该层的顶部上包​​含通过含有反应性氢的聚合物或聚合物的混合物的酸催化反应获得的交联聚合物的保护层 原子和交联剂,交联剂是含有多个醚化的N-羟甲基的有机化合物。

    X-ray intensifying screens
    6.
    发明授权
    X-ray intensifying screens 失效
    X射线增强屏

    公开(公告)号:US4180740A

    公开(公告)日:1979-12-25

    申请号:US920665

    申请日:1978-06-30

    摘要: An X-ray image intensifying screen is described comprising halide-containing phosphor particles. In order to improve the stability to moisture and thus to protect against loss of fluorescence power the phosphor particles are admixed with, combined with or have reacted with one or more organic substances that are capable of reacting with hydrogen chloride and/or labile halogen. The stability is further improved by admixture of nonhygroscopic halide-free phosphor particles in such a ratio that the ratio of the intensification factor of said screen with respect to the intensification factor of said screen but containing no such halide-free phosphor particles is not smaller than 1:4.

    摘要翻译: 描述了包含含卤素的荧光体颗粒的X射线图像增强屏。 为了提高对水分的稳定性,并且因此防止荧光能力的损失,磷光体颗粒与能与氯化氢和/或不稳定卤素反应的一种或多种有机物质混合,结合或已经与其反应。 通过将非吸湿性无卤素荧光体颗粒的混合比例使得所述屏幕的增强因子与所述屏幕的增强因子的比例相对于不含这种无卤素的荧光体颗粒的比例不小于 1:4。

    Imaging chamber with electrode structure
    7.
    发明授权
    Imaging chamber with electrode structure 失效
    具有电极结构的成像室

    公开(公告)号:US4139768A

    公开(公告)日:1979-02-13

    申请号:US819154

    申请日:1977-07-26

    CPC分类号: G03G15/0545

    摘要: An ionographic imaging chamber, which comprises: first and second substantially planar electrodes; means supporting said electrodes in the chamber in spaced relation defining a gap therebetween; means for connecting a voltage source to said electrodes, and means enabling a dielectric charge receptor member to be introduced into said chamber and into contact with one of said electrodes, wherein said one electrode has in a non-porous surface layer for contacting said member a relief structure or configuration providing a recess or recesses capable of holding gas while a said charge receptor member is in position against said one electrode.

    摘要翻译: 一种离子成像室,包括:第一和第二基本平面的电极; 意味着以间隔开的方式支撑所述室中的所述电极,其间形成间隙; 用于将电压源连接到所述电极的装置,以及使介电电荷受体构件能够被引入所述室并与所述电极之一接触的装置,其中所述一个电极具有用于使所述构件a接触的无孔表面层 浮雕结构或构造提供能够保持气体的凹部或凹部,同时所述电荷接收构件抵靠所述一个电极就位。