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42 条记录 (耗时 0.022 秒)

    CALIBRATION METHOD AND APPARATUS FOR PIXILATED SOLID STATE DETECTOR
    1.
    发明公开
    CALIBRATION METHOD AND APPARATUS FOR PIXILATED SOLID STATE DETECTOR 审中-公开
    校准和设备像素内衬管LOOSE探测器

    公开(公告)号：EP1685426A1

    公开(公告)日：2006-08-02

    申请号：EP04770191.7

    申请日：2004-10-06

    申请人： Koninklijke Philips Electronics N.V.

    发明人： PETRILLO, Michael, J. ,  YE, Jingjan

    IPC分类号： G01T1/24

    CPC分类号： G01T1/169 ,  G01T1/166 ,  G01T1/247 ,  G01T1/249 ,  G01T1/2964 ,  G01T7/005 ,  G12B13/00

    摘要： A system calibrates a solid state detector (20) for a radiation imaging device (10) in a single acquisition. A calibration phantom (40) emits radiation concurrently at at least first and second characteristic energy levels. A nuclear camera (16) generates associated sets of radiation data spanning both the first and second energy levels from the emitted radiation that is received by solid state detector (20). A means (64) determines associated centers of energy peaks and energy values of the generated data sets. A calibration means (80) calibrates at least one of gain, offset, performance and dead pixel correction based on the determined centers and peaks of the acquired data sets.

    DIGITAL DETECTOR FOR X-RAY IMAGING
    3.
    发明公开
    DIGITAL DETECTOR FOR X-RAY IMAGING 审中-公开
    数字探测器X射线照片

    公开(公告)号：EP1121719A1

    公开(公告)日：2001-08-08

    申请号：EP99933110.1

    申请日：1999-07-26

    申请人： Edge Medical Devices Ltd.

    发明人： ZUR, Albert

    IPC分类号： H01L27/146 ,  G01T1/24

    CPC分类号： G01T1/2018 ,  G01T1/24 ,  G01T1/246 ,  G01T1/247 ,  G01T1/2928 ,  G01T1/2964 ,  H01L27/14676 ,  H01L27/14678 ,  H04N5/32

    摘要： The present invention discloses an X-ray imaging module having a multilayer ionizing radiation sensitive element (60) operative to convert spatially modulated impinging X-ray radiation to a spatially modulated charge distribution. The multilayer ionizing radiation sensitive element has a substrate (100), a conductive layer (102) overlying the substrate, an ionizing radiation sensitive layer (104) overlying the conductive layer which converts ionizing radiation impinging thereon to charge carriers, and a blocking layer (106) exposed to ionizing radiation and optical radiation, overlying the ionizing radiation sensitive layer. The blocking layer limits the passage of charges, of at least one polarity, and blocks optical radiation, of at least one spectral band, from penetrating therethrough, while permitting passage therethrough of ionizing radiation. The X-ray imaging module also contains a charge injection assembly (68) operative to inject charge into the multilayer ionizing radiation sensitive element and readout circuitry coupled to the multilayer ionizing radiation sensitive element.

    Imaging devices, systems and methods
    4.
    发明公开
    Imaging devices, systems and methods 失效

    公开(公告)号：EP0854639A3

    公开(公告)日：1999-02-10

    申请号：EP98200377.4

    申请日：1995-05-29

    申请人： SIMAGE OY

    发明人： Orava, Risto Olavi ,  Pyyhtia, Jouni Ilari ,  Schulman, Tom Gunnar ,  Sarakinos, Miltiadis Evangelos ,  Spartiotis, Konstantinos Evangelos

    IPC分类号： H04N3/15 ,  H04N5/32

    CPC分类号： G01T1/243 ,  G01T1/247 ,  G01T1/2964 ,  H01L27/14601 ,  H04N5/23238 ,  H04N5/32 ,  H04N5/341 ,  H04N5/349 ,  H04N5/374 ,  H04N5/3745 ,  H04N5/376

    摘要： An imaging device comprises a semiconductor substrate including an array of pixel cells. Each pixel cell comprising an individually addressable pixel circuit for accumulating charge resulting from radiation incident on a pixel detector. The pixel circuit and the pixel detector can either be implemented on a single substrate, or on two substrates bonded together. The charge storage device can be a transistor, for example one of a pair of FETs connected as a cascode amplification stage. An imaging plane can be made up of one imaging device or a plurality of imaging devices tiled to form a mosaic. The imaging devices may be configured as a slot for certain applications, the slit or slot being scanned over the imaging plane. Control electronics can include addressing logic for addressing individual pixel circuits for reading accumulated charge from the pixel circuits. Imaging optimisation can be achieved by determining maximum and minimum charge values for pixels for display, assigning extreme grey scale or colour values to the maximum and minimum charge values and allocating grey scale or colour values to an individual pixel according to a sliding scale between the extreme values. Scattered radiation can be detected and discarded by comparing the detected pixel value to a threshold value related to a minimum detected charge value expected for directly incident radiation and discarding detected pixel values less than said threshold value.

    TOMOGRAPHIEANLAGE UND VERFAHREN FÜR GROSSVOLUMIGE AUFNAHMEN
    8.
    发明公开
    TOMOGRAPHIEANLAGE UND VERFAHREN FÜR GROSSVOLUMIGE AUFNAHMEN 审中-公开
    用于大容量记录的层析摄影系统和方法

    公开(公告)号：EP3162290A1

    公开(公告)日：2017-05-03

    申请号：EP16191079.9

    申请日：2016-09-28

    申请人： Siemens Healthcare GmbH

    发明人： Divoky, Robert

    IPC分类号： A61B6/02 ,  A61B6/03 ,  A61B6/00

    CPC分类号： G01T1/2985 ,  A61B6/025 ,  A61B6/032 ,  A61B6/4014 ,  A61B6/4441 ,  G01N21/6456 ,  G01N23/046 ,  G01N2201/1035 ,  G01N2223/419 ,  G01T1/2964

    摘要： Die Erfindung betrifft eine Tomographieanlage (R) mit einer ersten Strahlquelle (Q1) und einem ersten Detektor (RD1), der der ersten Strahlquelle (Q1) zugeordnet ist, sowie mit einer zweiten Strahlquelle (Q2) und einem zweiten Detektor (RD2), der der zweiten Strahlquelle (Q2) zugeordnet ist. Die Tomographieanlage (R) ist dazu vorbereitet, einen Scan durchzuführen, wobei der erste Detektor (RD1) in einer ersten Rotationsebene (RE1) entlang einer ersten kreissegmentförmigen Bahnkurve (BKD1) geführt wird, während der zweite Detektor (RD2) synchron in einer zweiten Rotationsebene (RE2) entlang einer zweiten kreissegmentförmigen Bahnkurve (BKD2) geführt wird. Außerdem ist die Tomographieanlage (R) dazu vorbereitet, hierbei mit dem ersten Detektor (RD1) einen ersten Datensatz (DS1) und mit dem zweiten Detektor (RD2) einen zweiten Datensatz (DS2) zu gewinnen. Die beiden Rotationsebenen (RE1, RE2) sind zueinander beabstandet angeordnet.
    Die Erfindung betrifft auch ein entsprechendes Verfahren (100) zum Betreiben einer Tomographieanlage (R).

    摘要翻译： 本发明涉及一种成像系统（R）与第一光束源（Q1）和与所述第一光束源（Q1），以及与第二束源（Q2）和第二检测器（RD2）相关联的第一检测器（RD1）中， 与第二束源（Q2）相关联。 所述断层摄影系统（R）是准备执行扫描，其中，所述在（RE1）沿第一圆弧段形路径曲线（BKD1）旋转的第一平面的第一检测器（RD1）被引导，而所述第二检测器（RD2），其与所述第二同步地旋转平面 （RE2）沿着第二圆形段形轨迹（BKD2）被引导。 另外，准备层析成像系统（R）以获得具有第一检测器（RD1）的第一数据集（DS1）和具有第二检测器（RD2）的第二数据集（DS2）。 两个旋转平面（RE1，RE2）彼此间隔一定距离排列。 本发明还涉及用于操作断层摄影系统（R）的对应方法（100）。

    SCANNING APPARATUS
    10.
    发明公开
    SCANNING APPARATUS 审中-公开
    SCAN-VORRICHTUNG

    公开(公告)号：EP1423682A4

    公开(公告)日：2005-07-20

    申请号：EP02755601

    申请日：2002-08-01

    申请人： OREX COMPUTED RADIOGRAPHY LTD

    发明人： KOREN JACOB

    IPC分类号： G01T1/29 ,  G02B26/10 ,  G02B27/02 ,  H04N1/06 ,  G01N23/04 ,  H04N1/04

    CPC分类号： G03B42/08 ,  G01T1/2964 ,  G02B26/10 ,  G02B27/023 ,  H04N1/0283 ,  H04N1/0607 ,  H04N1/0621 ,  H04N1/0635 ,  H04N1/0642 ,  H04N1/0671 ,  H04N1/0678

    摘要： A scanning apparatus is provided, which includes a medium (14) attached to a surface of a fixed, hollow cylindrical segment (12), the fixed, hollow cylindrical segment having a first longitudinal axis (16), a rotational radial laser beam rotating around the first longitudinal axis and arranged to scan said medium, and a light sensitive detector (20) having a light acceptance direction along a second axis coinciding with the first longitudinal axis of the cylindrical segment.

    摘要翻译： 提供一种扫描设备，其包括附着到固定的中空圆柱形部分（12）的表面的介质（14），该固定的中空圆柱部分具有第一纵向轴线（16），旋转的径向激光束 所述第一纵向轴线并被布置为扫描所述介质;以及光敏检测器（20），所述光敏检测器具有沿着与所述圆柱形段的所述第一纵向轴线重合的第二轴线的光接收方向。