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    X-ray intesifier tube comprising a separating layer between the luminescent layer and the photocathode
    1.
    发明公开
    X-ray intesifier tube comprising a separating layer between the luminescent layer and the photocathode 失效
    Röntgenbildverstärkerröhremit einer Trennschicht zwischen der Lumineszenzschicht und der Fotokathode。

    公开(公告)号：EP0265997A1

    公开(公告)日：1988-05-04

    申请号：EP87202013.6

    申请日：1987-10-20

    申请人： Philips Electronics N.V.

    发明人： van der Velden, Johny Wilhelmus ,  Diemer, Willem Hildebrand

    IPC分类号： H01J29/38

    CPC分类号： H01J29/385

    摘要： The separating layer (18) between the luminescent layer (16) and the photocathode (20) of the entrance screen (10) in an X-ray image intensifier tube (1) is formed by a layer which has a suitable optical transmission, a suitable chemical inertia, a suitable tightness and a strongly bridging character and which is deposited by means of a plasma CVD technique, so that all requirements to be imposed on a separating layer can be satisfied without causing a substantial loss of efficiency. By variation of the material composition, measured across the thickness of the layer, an optimum optical transition can be realized between the luminescent layer and the photocathode.

    摘要翻译： X射线图像增强管（1）中的入射屏（10）的发光层（16）和光电阴极（20）之间的分离层（18）由具有合适的光透射率的层 合适的化学惯性，合适的密封性和强桥接性，并且通过等离子体CVD技术沉积，使得可以满足施加在分离层上的所有要求，而不会导致实质上的效率损失。 通过在层的厚度上测量的材料组成的变化，可以在发光层和光电阴极之间实现最佳的光学转变。