公开(公告)号：US5646477A

公开(公告)日：1997-07-08

申请号：US725502

申请日：1996-10-04

申请人： Shirofumi Yamagishi

发明人： Shirofumi Yamagishi

IPC分类号： H01J29/38 ,  H01J31/26

CPC分类号： H01J29/385

摘要： An X-ray image intensifier that includes a vacuum envelope having a metal X-ray input window and an input screen formed on the inner surface of the X-ray input window, a focusing electrode, an anode, and an output screen arranged in the vacuum envelope along the traveling direction of electrons generated from the input screen. The X-ray input window has a rough, surface-hardened layer on the side on which the input screen is formed. The input screen includes a phosphor layer adjacent to the rough, surface-hardened layer and a photocathode formed on the phosphor layer.

摘要翻译： 一种X射线图像增强器，包括具有金属X射线输入窗的真空外壳和形成在X射线输入窗的内表面上的输入屏幕，聚焦电极，阳极和输出屏幕，其布置在 沿着从输入屏幕产生的电子的行进方向的真空包络。 X射线输入窗口在其上形成输入屏幕的一侧具有粗糙的表面硬化层。 输入屏幕包括与粗糙的表面硬化层相邻的荧光体层和形成在荧光体层上的光电阴极。

公开(公告)号：US5635706A

公开(公告)日：1997-06-03

申请号：US622169

申请日：1996-03-27

申请人： Yongzheng She ,  Fonglan Ji ,  Wei-Lou Cao ,  Meizhen Zhang ,  Yanhua Shih ,  Roger H. Schneider

发明人： Yongzheng She ,  Fonglan Ji ,  Wei-Lou Cao ,  Meizhen Zhang ,  Yanhua Shih ,  Roger H. Schneider

IPC分类号： G01T1/28 ,  H01J29/38 ,  H01J31/50 ,  G21K4/00

CPC分类号： G01T1/28 ,  H01J29/385 ,  H01J31/505

摘要： A direct conversion broad band x-ray/gamma-ray photocathode having at least one layer functioning as an efficient x-ray or gamma-ray absorber and another layer functioning as an efficient transmission secondary electron emitter for providing both high detection efficiency and high spatial resolution, for use in either a radiation detection environment or an image intensification environment.

摘要翻译： 具有至少一个层作为高效x射线或γ射线吸收体起作用的直接转换宽带x射线/γ射线光电阴极，另一层用作有效传输二次电子发射体，用于提供高检测效率和高空间 分辨率，用于辐射检测环境或图像增强环境中。

公开(公告)号：US5315103A

公开(公告)日：1994-05-24

申请号：US966510

申请日：1992-10-23

申请人： Yvan Raverdy ,  Christian Marillat ,  Daniel Gally

发明人： Yvan Raverdy ,  Christian Marillat ,  Daniel Gally

IPC分类号： G01T1/20 ,  G21K4/00 ,  H01J29/38 ,  H01J29/45 ,  H01J31/50 ,  H01J40/14

CPC分类号： H01J29/385

摘要： The disclosure relates to radiological image intensifier tubes, and more particularly to means to improve the image resolution of these tubes and/or correct their brightness curve at output. The image intensifier tube comprises an input screen comprising a scintillator borne by an aluminium substrate. A porous layer of alumina is interposed between the scintillator and the substrate. The alumina layer is dyed so as to absorb the light emitted by the scintillator towards the substrate.

摘要翻译： 本公开涉及放射图像增强管，更具体地，涉及改善这些管的图像分辨率和/或在输出时校正其亮度曲线的手段。 图像增强管包括包括由铝基板承载的闪烁体的输入屏幕。 闪烁体和基底之间插入有多孔氧化铝层。 氧化铝层被染色以便将闪烁体发射的光吸收到衬底上。

公开(公告)号：US5029247A

公开(公告)日：1991-07-02

申请号：US524488

申请日：1990-05-17

申请人： Hidero Anno ,  Katsuhiro Ono

发明人： Hidero Anno ,  Katsuhiro Ono

IPC分类号： G01T1/28 ,  G21K4/00 ,  H01J9/233 ,  H01J29/38

CPC分类号： H01J29/385 ,  G01T1/28 ,  G21K4/00

摘要： An X-ray image intensifier includes an input screen for converting incident X-rays into photoelectrons, and an output screen for converting the photoelectrons into visible light. The input screen includes a phosphor layer. The phosphor layer has a large number of columnar crystals of a phosphor which have end faces constituting a smooth surface facing the output screen. A low-refractive-index layer is formed on the phosphor layer and made of a material having a refractive index smaller than a refractive index of the phosphor, with respect to the light having a specified wavelength, at which the fluorescence of the phosphor is the most intensive. A photoemissive layer is formed directly or indirectly on the low-refractive-index layer.

公开(公告)号：US4985633A

公开(公告)日：1991-01-15

申请号：US381862

申请日：1989-07-19

申请人： Gerard Vieux ,  Paul de Croot

发明人： Gerard Vieux ,  Paul de Croot

IPC分类号： H01J9/233 ,  G21K4/00 ,  H01J9/12 ,  H01J29/38 ,  H01J31/50

CPC分类号： H01J29/385 ,  G21K4/00 ,  H01J9/12

摘要： An improved scintillator for an input screen of an X-ray image intensifier tube is disclosed which has a substrate on which there is deposited the scintillating material in the form of thin parallel needles. The face of the substrate having the scintillating materials has an alveolate surface state or has an alveolate structure. As a result of this structure there are thinner needles formed and the reduction in the diameter of the needles results in an improvement of the resolution of the device.

摘要翻译： 公开了一种用于X射线图像增强管的输入屏幕的改进的闪烁体，其具有衬底，其上以薄的平行针的形式沉积闪烁材料。 具有闪烁材料的基材的表面具有泡沫状表面状态或具有蜂窝状结构。 作为这种结构的结果，形成较细的针，并且针的直径的减小导致装置的分辨率的提高。

公开(公告)号：US4980561A

公开(公告)日：1990-12-25

申请号：US295391

申请日：1989-01-10

申请人： Gerard Vieux ,  Henri Rougeot ,  Paul de Groot ,  Francois Chareyre

发明人： Gerard Vieux ,  Henri Rougeot ,  Paul de Groot ,  Francois Chareyre

IPC分类号： H01J9/233 ,  H01J9/12 ,  H01J29/38 ,  H01J31/50

CPC分类号： H01J9/12 ,  H01J29/385

摘要： The invention concerns an input screen scintillator for an X-ray image intensifier tube. This tube comprises light-conductive cesium iodide needles formed on an electrically conductive substrate. According to the invention, each needle is entirely coated with a material such as a metal or a semiconductor which reflects the light travelling within the needles and allows an identical potential level in the coating material as in the substrate towards the inside of said needles. The coating can enhance the efficiency and resolution of image intensifier tubes. The invention has applications in the field of X-ray imagery.

摘要翻译： 本发明涉及用于X射线图像增强管的输入屏幕闪烁体。 该管包括形成在导电基底上的导光铯碘化物针。 根据本发明，每个针完全涂覆有诸如金属或半导体的材料，其反射在针内行进的光，并且允许涂层材料中与底物中相同的电位水平朝向所述针的内部。 涂层可以提高图像增强管的效率和分辨率。 本发明在X射线成像领域有应用。

公开(公告)号：US4906897A

公开(公告)日：1990-03-06

申请号：US124388

申请日：1971-03-15

申请人： Barry M. Singer ,  Amos Picker

发明人： Barry M. Singer ,  Amos Picker

IPC分类号： H01J29/38 ,  H01J31/50

CPC分类号： H01J29/385 ,  H01J31/50 ,  H01J2231/50026 ,  H01J2231/50063

摘要： An image intensifier tube comprising an input screen assembly which includes a photosensitive semiconductor wafer having a substrate of one conductivity type material forming a plurality of P-N junctions with a planar array of mutually isolated islands of opposite conductivity type material, the islands protruding substantially equal distances from a common surface of the substrate, an opaque film of resistive material overlying the exposed areas of the islands and the common surface of the substrate, a layer of electroluminescent material disposed in abutting relationship with the distal ends of the islands and a layer of photoemissive material disposed in axially aligned relationship with the electroluminescent layer.

摘要翻译： 一种图像增强管，包括输入屏幕组件，该输入屏幕组件包括光敏半导体晶片，该光敏半导体晶片具有一个导电类型材料的基板，该基板形成具有相互隔离的相反导电类型材料岛的平面阵列的多个PN结， 衬底的公共表面，覆盖岛的暴露区域和衬底的共同表面的电阻材料的不透明膜，与岛的远端邻接关系设置的电致发光材料层和发光材料层 与电致发光层轴向对准的关系。

公开(公告)号：US4893020A

公开(公告)日：1990-01-09

申请号：US134157

申请日：1987-12-17

申请人： Katsuhiro Ono

发明人： Katsuhiro Ono

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

CPC分类号： G21K4/00 ,  H01J29/385 ,  H01J9/12

摘要： An X-ray fluorescent image intensifier is disclosed, which comprises an input screen for converting an incident X-ray image into photoelectrons, electrodes for accelerating and focusing photoelectrons and an output screen for converting the accelerated and focused photoelectrons. The input screen consists of an input substrate consisting of a lamination of a plurality of mesh plates each having a plurality of apertures, said input substrate having a plurality of through holes consisting of an interconnection of said apertures, and phosphor buried in said through holes, and a photocathode formed on said input substrate with phosphor buried in said through holes.

公开(公告)号：US4842894A

公开(公告)日：1989-06-27

申请号：US906476

申请日：1986-09-12

申请人： Martinus A. C. Ligtenberg ,  August L. H. Simons

发明人： Martinus A. C. Ligtenberg ,  August L. H. Simons

IPC分类号： H01J9/233 ,  G21K4/00 ,  H01J9/12 ,  H01J9/22 ,  H01J29/38 ,  H01J31/50

CPC分类号： H01J29/385 ,  G21K4/00 ,  H01J9/12 ,  H01J9/221

摘要： Vapor deposition crucible is provided at least twenty degrees from the central normal to a smooth surface of a screen on which luminescent material is to be deposited. During deposition the surface is rotated relative to the source to produce a layer having a regular structure and a good fill factor.

摘要翻译： 气相沉积坩埚从中心法线提供至少二十度，其中荧光材料将要沉积在其上的平滑表面。 在沉积期间，表面相对于源旋转以产生具有规则结构和良好填充因子的层。

公开(公告)号：US4778565A

公开(公告)日：1988-10-18

申请号：US119827

申请日：1987-11-12

申请人： Richard S. Enck ,  F. Dan Meadows

发明人： Richard S. Enck ,  F. Dan Meadows

IPC分类号： G21K4/00 ,  H01J9/12 ,  H01J29/38 ,  H01J31/50 ,  B44C1/22 ,  C03C15/00 ,  C03C25/06

CPC分类号： H01J9/12 ,  G21K4/00 ,  H01J29/385 ,  H01J31/505

摘要： A multistage, proximity type, radiation image intensifier tube having improved performance characteristics and more rugged construction is provided. A scintillator assembly is comprised of a first ceramic, cellular substrate defining an array of hexagonally shaped cells. The cell walls taper to an edge and are coated with a conductive material such as aluminum. The cells are filled with a scintillation material such as cesium iodide. A first flat photocathode is provided adjacent the first substrate. An intermediate assembly spaced from the scintillator assembly is provided comprised of a second ceramic, cellular substrate similar to the first. The cell walls are coated with a conductive material such as aluminum. A support layer is mounted to the substrate on an end opposite the scintillator assembly. A first flat phosphor display screen is mounted to the support layer on a side internal the second substrate. A second photocathode is provided adjacent the second substrate. An output assembly spaced from the intermediate assembly is provided and is comprised of a third ceramic cellular substrate which is similar to the first and second substrate. The cell walls are coated with a conductive material such as aluminum. A second flat phosphor display screen is mounted to the third substrate on an end opposite the second substrate. An output window mounted to the tube envelope and adjacent the second display screen is provided. Means are provided for applying separate electrostatic potentials between the various substrates.

摘要翻译： 提供了一种具有改进的性能特性和更坚固结构的多级接近型放射增强管。 闪烁体组件包括限定六边形形状的单元阵列的第一陶瓷，多孔基底。 细胞壁向边缘逐渐变细并涂覆有诸如铝的导电材料。 用闪烁体材料如碘化铯填充电池。 第一平面光电阴极设置在第一基板附近。 提供了与闪烁体组件间隔开的中间组件，其包括与第一陶瓷相似的第二陶瓷多孔基片。 细胞壁涂覆有诸如铝的导电材料。 支撑层在与闪烁体组件相对的端部上安装到基板。 第一平面荧光体显示屏安装在第二基板的内侧的支撑层上。 在第二基板附近提供第二光电阴极。 提供了与中间组件间隔开的输出组件，并且包括与第一和第二衬底相似的第三陶瓷多孔衬底。 细胞壁涂覆有诸如铝的导电材料。 第二平面荧光体显示屏在与第二基板相对的一端安装到第三基板。 提供安装到管壳并邻近第二显示屏的输出窗口。 提供了用于在各种基板之间施加单独静电电势的装置。