公开(公告)号：EP1114468B1

公开(公告)日：2003-05-02

申请号：EP99930787.9

申请日：1999-06-24

申请人： Direct Radiography Corp.

发明人： LEE, Denny, L., Y. ,  DAVIS, James, E.

IPC分类号： H01L31/0272 ,  G01T1/24 ,  H01L31/0216 ,  H01L31/115

CPC分类号： H01L27/14676

公开(公告)号：EP1114468A1

公开(公告)日：2001-07-11

申请号：EP99930787.9

申请日：1999-06-24

申请人： Direct Radiography Corp.

发明人： LEE, Denny, L., Y. ,  DAVIS, James, E.

IPC分类号： H01L31/0272 ,  G01T1/24

CPC分类号： H01L27/14676

摘要： A radiation detection sensor (10) includes a charge storage capacitor (14), a radiation sensitive layer (50) over the charge storage capacitor, and a dielectric layer (52) over the radiation sensitive layer. The dielectric layer has an adjusted resistivity ς resulting in a time constant τ = ςλε0 between 0.050 and 20 second, wherein λ is the dielectric constant of the dielectric layer, and ε0 is the permittivity of free space. The radiation sensitive layer is a photoconductor, and the dielectric layer is, preferably, a linear segmented polyurethane.

公开(公告)号：EP0998685B1

公开(公告)日：2004-10-13

申请号：EP97945594.6

申请日：1997-11-05

申请人： Direct Radiography Corp.

发明人： CROWELL, John, A. ,  PERROTTO, Joseph, A. ,  JEROMIN, Lothar, S. ,  LEE, Denny, L., Y.

IPC分类号： G01T1/24

CPC分类号： G01T1/244 ,  G01T1/24 ,  G01T1/2928

摘要： A digital array for capturing a radiogram. The array includes a generally flat base (36) on which there is mounted with a plurality of absorbing mounts (40) a rigid support plate (44). A radiation electronic detection panel is mounted on a rigid plate in a way that the panel "floats" over the base. Electronic circuitry associated with the radiation detection panel is connected thereto with flexible connectors. A cover (38), which is transparent to x-ray radiation and opaque to visible radiation, is attached to the base to form a light tight enclosure for the panel. The top cover inner surface opposite the front surface of the radiation detection panel, is spaced from the detection panel front surface, and the detection panel is also spaced from the side walls (39).

公开(公告)号：EP0998685A1

公开(公告)日：2000-05-10

申请号：EP97945594.6

申请日：1997-11-05

申请人： Direct Radiography Corp.

发明人： CROWELL, John, A. ,  PERROTTO, Joseph, A. ,  JEROMIN, Lothar, S. ,  LEE, Denny, L., Y.

IPC分类号： G01T1/24

CPC分类号： G01T1/244 ,  G01T1/24 ,  G01T1/2928

摘要： A digital array for capturing a radiogram. The array includes a generally flat base (36) on which there is mounted with a plurality of absorbing mounts (40) a rigid support plate (44). A radiation electronic detection panel is mounted on a rigid plate in a way that the panel 'floats' over the base. Electronic circuitry associated with the radiation detection panel is connected thereto with flexible connectors. A cover (38), which is transparent to x-ray radiation and opaque to visible radiation, is attached to the base to form a light tight enclosure for the panel. The top cover inner surface opposite the front surface of the radiation detection panel, is spaced from the detection panel front surface, and the detection panel is also spaced from the side walls (39).

摘要翻译： 用于捕捉无线电图的数字阵列。 该阵列包括大致平坦的底座（36），在该底座上安装有多个吸收底座（40），刚性支撑板（44）。 辐射电子检测面板安装在刚性板上，使面板“漂浮”在基座上。 与辐射检测面板相关联的电子电路通过柔性连接器与其连接。 对于X射线辐射透明并且对可见光辐射不透明的盖（38）被附接到基部以形成用于面板的不透光外壳。 与放射线检测面板的前表面相对的顶盖内表面与检测面板前表面间隔开，并且检测面板也与侧壁（39）间隔开。

公开(公告)号：EP0998686A1

公开(公告)日：2000-05-10

申请号：EP98933293.7

申请日：1998-07-09

申请人： Direct Radiography Corp.

发明人： LEE, Denny, L., Y. ,  CHEUNG, Lawrence, K.

IPC分类号： G01T1/24

CPC分类号： H01L27/14676

摘要： A method for preparing X-ray image capture panels suitable for use in digital radiography is disclosed. Array modules with sharp, steep edges suitable for tiling to form X-ray image capture panels are prepared placing an array module against an edge piece, and vacuum depositing a radiation detecting material on the top surface of the array module (50) and the edge piece (52) while simultaneously moving at least one of them relative to the other in the horizontal and/or the vertical direction.

公开(公告)号：EP1325502A1

公开(公告)日：2003-07-09

申请号：EP01966393.9

申请日：2001-08-30

申请人： Direct Radiography Corp.

发明人： DAVIS, James, E. ,  LEE, Denny, L., Y.

IPC分类号： G21K1/00

CPC分类号： G21K1/10 ,  G21K1/025

摘要： A shielding grid constructed of a radiation absorbing material for use with an array of discreet, non contiguous radiation sensors to protect such sensors from scattered radiation. The sensors each have a radiation sensitive area with a width (Ws) and length (Ls). In designing the grid a prototile (50) having a prototile width (Wp) is equal to the radiation sensitive area width (Ws) divided by an integer and the prototile length is also equal to the radiation sensitive area length divided by an integer. The prototile contains a motif (52) contained solely within the prototile that forms a pattern when a plurality of prototiles sufficient to cover the array of discreet sensor are arrayed contiguously. The grid is constructed with the radiation absorbing material in this pattern.

公开(公告)号：EP1159746A1

公开(公告)日：2001-12-05

申请号：EP00916021.9

申请日：2000-03-03

申请人： Direct Radiography Corp.

发明人： GOLDEN, Kelly, P. ,  LEE, Denny, L., Y.

IPC分类号： G21K1/10

CPC分类号： G21K1/025

摘要： A radiation anti-scattering device comprising a grid (58) and a grid driver (46) connected to the grid for unidirectionally moving the grid with a variable grid velocity along a path between a starting and an end position, and a method of providing such grid motion. The anti-scattering device may be a component of a direct radiographic diagnostic imaging system which includes an image-producing element (62) having an array of radiation detectors (66) aligned in rows (64), and where the anti-scattering device is a grid having vanes (60) oriented at an angle to the detector rows. The apparatus implements a method for reducing Moiré patterns in radiographic detectors having an array of sensors by unidirectionally moving the grid in a single stroke during the radiation exposure with an asymptotically decreasing speed profile such that grid motion is maintained for a plurality of different radiation exposure times.

摘要翻译： 一种辐射防散射装置，包括栅格（58）和连接到栅格的栅极驱动器（46），用于沿着开始和结束位置之间的路径以可变的栅格速度单向地移动栅格，以及提供这种 网格运动。 防散射装置可以是直接射线照相诊断成像系统的组件，其包括具有以行（64）排列的辐射检测器阵列（66）的图像产生元件（62），并且其中防散射装置 具有与检测器行成一定角度定向的叶片（60）的格栅。 该设备实现了一种用于在具有渐近减小的速度分布的辐射曝光期间通过在单个行程中单向移动网格来减小具有传感器阵列的放射线照相检测器中的莫尔图案的方法，使得网格运动针对多个不同的辐射曝光时间 。

公开(公告)号：EP1125305A1

公开(公告)日：2001-08-22

申请号：EP99971575.8

申请日：1999-10-21

申请人： Direct Radiography Corp.

发明人： DAVIS, James, E. ,  LEE, Denny, L., Y.

IPC分类号： G21K1/00

CPC分类号： G21K1/10

摘要： A shielding grid (44) constructed of a radiation absorbing material (46, 48) for use with an array of discreet, non-contiguous radiation sensors to protect such sensors from scattered radiation. The sensors each have a radiation sensitive area (11) with a width (Ws) and a length (W1). In designing the grid a prototile having a prototile width and a prototile length is developed. The prototile width is equal to the radiation sensitive area width divided by an integer, and the prototile length is also equal to the radiation sensitive area length divided by an integer. The prototile contains a motif contained solely within the prototile that forms a pattern when a plurality of prototiles sufficient to cover the array of discreet detector are arrayed contiguously. The grid is constructed with the radiation absorbing material in this pattern.

公开(公告)号：EP1123517A1

公开(公告)日：2001-08-16

申请号：EP99951946.5

申请日：1999-10-12

申请人： Direct Radiography Corp.

发明人： JEROMIN, Lothar, S. ,  LEE, Denny, L., Y. ,  GOLDEN, Kelly, P.

IPC分类号： G01T1/24

CPC分类号： G01T1/241 ,  H01L27/14603 ,  H01L27/14623 ,  H01L27/14665

摘要： An image capture panel including a substrate (12) with a plurality of radiation detection sensors (10), a plurality of conductors (53) connected one to each radiation detection sensor, a plurality of amplifiers (52) connected to the sensors all on the substrate, and a field electrode (38) having a peripheral edge mounted above the radiation detection sensors and the conductors. A shielding electrode (56) may surround the field electrode peripheral edge or may completely cover the field electrode with a dielectric layer in-between. A shielding electrode may instead surround or completely cover each amplifier. The shielding electrode may be biased to ground (62) via a resistor (64), and may be constructed of a conductive paint, such as silver paint.