公开(公告)号：EP0481465A1

公开(公告)日：1992-04-22

申请号：EP91117679.0

申请日：1991-10-16

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Kubo, Hiroshi, c/o Intellectual Prop. Division

IPC: H01J31/50 ,  H01J29/38 ,  H01J9/12 ,  G21K4/00

CPC classification number: H01J29/385 ,  G21K4/00 ,  G21K2004/04 ,  G21K2004/06 ,  G21K2004/12 ,  H01J9/12 ,  H01J2201/3426

Abstract: An X-ray imaging tube which comprises a vacuum envelope (11), an input screen (12) comprising a substrate (16) located in the input end of the envelope (11), an input phosphor layer (17) formed on the substrate (11) and comprising a number of columnar phosphor crystals (17a), and a photoelectric layer (18) formed directly or indirectly on the input phosphor layer (17), an anode (13) and an output screen (14) located in the output end of the envelope, and a beam-converging electrode (15) located in the envelope (11) and extending along the inner surface of the envelope (11). The tube further comprising optically opaque layers (21) which are formed in each columnar crystal (17a) and extending from the surface thereof. A method of manufacturing an X-ray imaging tube, disclosed herein, comprises the steps of vapor-depositing a predetermined phosphor on a substrate (16), thereby forming on the substrate (16) an input phosphor layer (17) consisting of columnar crystals (17a), vapor-depositing a predetermined material, thereby forming an optically opaque layer (21) on the tip of each columnar crystal (17a), sputtering the optically opaque layer (21), thereby removing a part of the optically opaque layer (21) formed on the tip of the columnar crystal (17a), vapor-depositing said predetermined phosphor, and, if necessary, repeating these steps, thereby forming a plurality of optically opaque layers (21) in each columnar crystal (17a), which extend from circumferential surface of the columnar crystal (17a).

Abstract translation: 一种X射线成像管，其包括真空外壳（11），包括位于所述外壳（11）的输入端的基板（16）的输入屏幕（12），形成在所述基板上的输入荧光体层 （11），并且包括多个柱状荧光体晶体（17a），以及直接或间接形成在所述输入荧光体层（17）上的光电层（18），阳极（13）和输出屏（14） 输出端，以及位于所述外壳（11）中并且沿着所述外壳（11）的内表面延伸的光束会聚电极（15）。 该管还包括形成在每个柱状晶体（17a）中并从其表面延伸的光学不透明层（21）。 本文公开的制造X射线成像管的方法包括以下步骤：在衬底（16）上气相沉积预定的荧光体，从而在衬底（16）上形成由柱状晶体构成的输入磷光体层（17） （17a），气相沉积预定材料，由此在每个柱状晶体（17a）的顶端上形成光不透明层（21），溅射光不透明层（21），从而去除光不透明层的一部分 21）形成在柱状晶体（17a）的顶端，气相沉积所述预定的荧光体，如果需要，重复这些步骤，从而在每个柱状晶体（17a）中形成多个不透光层（21），其中 从柱状晶体（17a）的圆周表面延伸。

公开(公告)号：EP0413481A3

公开(公告)日：1992-01-02

申请号：EP90308569.4

申请日：1990-08-03

Applicant: GALILEO ELECTRO-OPTICS CORP.

Inventor： Horton, Jerry R. ,  Tasker, G. William

IPC: H01J9/12 ,  H01J43/22

CPC classification number: H01J43/246 ,  H01J9/12 ,  H01J2201/32 ,  H01J2201/3423 ,  H01J2201/3426

Abstract: A method for manufacturing an electron multiplier or microchannel plate (10) comprises the steps of forming a body (12) of etchable material, directionally applying a flux of reactive particles against the body in selected areas for removing material therefrom in order to form at least one electron multiplication channel (14) in the body.

Abstract translation: 一种用于制造电子倍增器或微通道板（10）的方法，包括以下步骤：形成可蚀刻材料的主体（12），在选定区域中定向施加反应性粒子通量以抵靠主体以从其去除材料，以至少形成 一个电子倍增通道（14）在体内。

公开(公告)号：EP0283020B1

公开(公告)日：1991-06-05

申请号：EP88104277.4

申请日：1988-03-17

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Aramaki, Yoshimitsu

IPC: H01J29/38 ,  H01J1/34 ,  H01J9/12

CPC classification number: H01J29/385 ,  H01J9/12 ,  H01J2201/3425 ,  H01J2201/3426

公开(公告)号：EP0413481A2

公开(公告)日：1991-02-20

申请号：EP90308569.4

申请日：1990-08-03

Applicant: GALILEO ELECTRO-OPTICS CORP.

Inventor： Horton, Jerry R. ,  Tasker, G. William

IPC: H01J9/12 ,  H01J43/22

CPC classification number: H01J43/246 ,  H01J9/12 ,  H01J2201/32 ,  H01J2201/3423 ,  H01J2201/3426

Abstract: A method for manufacturing an electron multiplier or microchannel plate (10) comprises the steps of forming a body (12) of etchable material, directionally applying a flux of reactive particles against the body in selected areas for removing material therefrom in order to form at least one electron multiplication channel (14) in the body.

Abstract translation: 一种用于制造电子倍增器或微通道板（10）的方法包括以下步骤：形成可蚀刻材料的主体（12），在选定的区域中定向地施加反应性颗粒的焊剂到主体以从中移除材料，以形成至少 身体中的一个电子倍增通道（14）。

公开(公告)号：EP0283020A2

公开(公告)日：1988-09-21

申请号：EP88104277.4

申请日：1988-03-17

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Aramaki, Yoshimitsu

IPC: H01J29/38 ,  H01J1/34 ,  H01J9/12

CPC classification number: H01J29/385 ,  H01J9/12 ,  H01J2201/3425 ,  H01J2201/3426

Abstract: The present invention provides a photocathode which is formed on a substrate (15) consisting of one or a plurality of members having surfaces with a large number of fine spaces or pores, and which mainly consists of a semimetal and one or a plurality of alkaline metals, characterized in that the photocathode (13) is formed on an alkaline metal oxide layer (14) formed on the substrate, and a composition ratio of the semimetal and the one or a plurality of alkaline metals is stoichi­metric or mostly stoichiometric. The photocathode of the present invention has high sensitivity and can stably maintain the sensitivity for a long period of time.

Abstract translation: 本发明提供一种光电阴极，其形成在由具有大量微小空间或孔的表面的一个或多个构件构成的基板（15）上，主要由半金属和一种或多种碱金属 其特征在于，所述光电阴极（13）形成在形成于所述基板上的碱金属氧化物层（14）上，所述半金属与所述一种或多种碱金属的组成比为重量比或大部分为化学计量比。 本发明的光电阴极具有高灵敏度，能够长时间稳定地保持灵敏度。