公开(公告)号：US5515411A

公开(公告)日：1996-05-07

申请号：US215950

申请日：1994-03-22

申请人： Hiromichi Tonami ,  Takahisa Nishikawa ,  Takayuki Takemoto ,  Yutaro Kimura ,  Keiichi Hiragaki ,  Hidetoshi Kishimoto ,  Tatsuya Shimizu ,  Shiro Oikawa ,  Tutomu Katou ,  Shirou Suzuki ,  Toshio Yamagishi ,  Kenkichi Tanioka

发明人： Hiromichi Tonami ,  Takahisa Nishikawa ,  Takayuki Takemoto ,  Yutaro Kimura ,  Keiichi Hiragaki ,  Hidetoshi Kishimoto ,  Tatsuya Shimizu ,  Shiro Oikawa ,  Tutomu Katou ,  Shirou Suzuki ,  Toshio Yamagishi ,  Kenkichi Tanioka

IPC分类号： G21K4/00 ,  H01J31/49 ,  H01J40/14

CPC分类号： H01J31/49 ,  G21K4/00 ,  G21K2004/04 ,  G21K2004/06

摘要： An X-ray image pickup tube converts a transmitted X-ray image into electric signals. The pickup tube includes a target structure having a fluorescent element, and a translucent conductive film for receiving a high voltage, with a photoconductive film laminated thereupon. The fluorescent element receives transmitted X rays in a two-dimensional distribution, and converts them into visible rays in a two-dimensional distribution. The translucnet conductive film is optically coupled to a surface of the fluorescent element opposite from an X-ray incident surface thereof. The photoconductive film includes an amorphors semiconductor layer which converts the visible rays transmitted in a two-dimensional distribution through the translucent conductive film, into electric charges in a two-dimensional distribution, and which multiplies the electric charges in the two-dimensional distribution based on electric fields formed by the high voltage applied to the translucent conductive film. The pickup tube also has a signal reading device in the form of an electron gun or switching elements for scanning a surface of the photoconductive film, as electric signals, a two-dimensional electric potential distribution occurring on the photoconductive film.

摘要翻译： X射线摄像管将透射的X射线图像转换为电信号。 拾取管包括具有荧光元件的目标结构和用于接收高电压的半透明导电膜，其上层叠有光电导膜。 荧光元件以二维分布接收透射的X射线，并将其转换成二维分布中的可见光。 透明导电膜光学耦合到与其X射线入射表面相对的荧光元件的表面。 光电导膜包括将通过半透明导电膜以二维分布透射的可见光转换为二维分布的电荷的非晶半导体层，并且将二维分布中的电荷乘以 由施加到半透明导电膜的高电压形成的电场。 拾取管还具有电子枪形式的信号读取装置或用于扫描光电导膜的表面作为电信号的光电导膜上出现的二维电位分布的开关元件。

公开(公告)号：US5483071A

公开(公告)日：1996-01-09

申请号：US266606

申请日：1994-06-28

申请人： Shiro Oikawa ,  Takayuki Takemoto ,  Tutomu Katou ,  Shirou Suzuki ,  Kenkichi Tanioka

发明人： Shiro Oikawa ,  Takayuki Takemoto ,  Tutomu Katou ,  Shirou Suzuki ,  Kenkichi Tanioka

IPC分类号： A61B6/00 ,  G01T1/20 ,  H01L27/146 ,  H01L31/0264 ,  G01T1/202 ,  G01T1/24

CPC分类号： G01T1/2018 ,  H01L27/146 ,  H01L27/14676

摘要： A two-dimensional radiation detector for obtaining a radiographic image as converted into electric signals. The detector has a multi-layer structure including a scintilator, a translucent electrode film, a photoconductive film and a scan switch layer. The scan switch layer includes conductors arranged in matrix form and in contact with the photoconductive film, a plurality of FETs corresponding to the conductors arranged in matrix form, and a uniformly planar conductor for successively applying a bias voltage through the FETs to the matrix conductors row by row. Each FET has a drain electrode connected to one of the matrix conductors, a source electrode connected to the uniformly planar conductor, and a gate electrode connected to the drive circuit. The translucent electrode film includes column conductors corresponding to columns of the matrix conductors, each of the column conductors being connected to a signal reading line.

摘要翻译： 一种二维辐射检测器，用于获得转换为电信号的放射照相图像。 检测器具有包括闪烁体，透光性电极膜，感光膜和扫描开关层的多层结构。 扫描开关层包括以矩阵形式布置并与光电导膜接触的导体，对应于以矩阵形式布置的导体的多个FET，以及均匀平面的导体，用于连续地通过FET施加偏置电压到矩阵导体列 按行。 每个FET具有连接到矩阵导体之一的漏极电极，连接到均匀平面导体的源电极和连接到驱动电路的栅电极。 半透明电极膜包括与矩阵导体的列对应的列导体，每个列导体连接到信号读取线。