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    RADIATION IMAGING APPARATUS AND RADIATION IMAGING SYSTEM
    51.
    发明公开
    RADIATION IMAGING APPARATUS AND RADIATION IMAGING SYSTEM 审中-公开

    公开(公告)号：US20230258828A1

    公开(公告)日：2023-08-17

    申请号：US18166518

    申请日：2023-02-09

    申请人： CANON KABUSHIKI KAISHA

    发明人： RYUNOSUKE BANNAI ,  TETSUNORI OJIMA ,  KENTARO FUJIYOSHI ,  RYOSUKE MIURA

    IPC分类号： G01T1/20

    CPC分类号： G01T1/2018 ,  G01T1/2002

    摘要： A radiation imaging apparatus comprising pixels, a driver controlling the pixels via driving lines, a readout circuit reading out, via column signal lines, signals from the pixels and a detector detecting irradiation information of radiation separately from a radiation image, is provided. Each of the column signal lines is connected to pixels arranged on two pixel columns. The pixels include a first pixel and a second pixel, whose sensitivities are different from each other. The first and second pixels are connected to a common column signal line and are connected to driving lines different from each other. When detecting the irradiation information, the driver drives the first and second pixels at timings different from each other, and the detection circuit detects the irradiation information based on signals output from the first and second pixels.

    DETECTOR MODULE, DETECTOR, AND MEDICAL DEVICE
    52.
    发明公开
    DETECTOR MODULE, DETECTOR, AND MEDICAL DEVICE 审中-公开

    公开(公告)号：US20230240626A1

    公开(公告)日：2023-08-03

    申请号：US18299030

    申请日：2023-04-11

    申请人： Neusoft Medical Systems Co., Ltd.

    发明人： Jun YU ,  Tong ZHANG ,  Yiguang TAN

    IPC分类号： A61B6/03 ,  G01T1/20 ,  G01T1/164 ,  G01T1/24

    CPC分类号： A61B6/032 ,  G01T1/2006 ,  G01T1/1644 ,  G01T1/243 ,  G01T1/247

    摘要： Provide are a detector module, a detector, and a medical device. The detector module includes a plurality of detection sub-modules at least partially arranged in a stepped manner in a first direction. Each of the plurality of detection sub-modules includes a plurality of photoelectric conversion units arranged at intervals in a second direction intersecting with the first direction. One of two adjacent detection sub-modules is located at a higher step as a first detection sub-module, and the other one is located at a lower step and as a second detection sub-module. A first gap is formed between the plurality of photoelectric conversion units of the first detection sub-module. A second gap is formed between the plurality of photoelectric conversion units of the second detection sub-module. A width of the first gap in the second direction is smaller than a width of the second gap in the second direction.

    RADIATION DETECTOR
    53.
    发明公开
    RADIATION DETECTOR 审中-公开

    公开(公告)号：US20230236329A1

    公开(公告)日：2023-07-27

    申请号：US18190236

    申请日：2023-03-27

    申请人： CANON ELECTRON TUBES & DEVICES CO., LTD.

    发明人： Yuta TAKAHASHI ,  Hiroshi ONIHASHI ,  Ryo MIBUKA ,  Yasufumi YOSHIDA

    IPC分类号： G01T1/17 ,  G01T1/20 ,  H04N25/671 ,  H04N25/30 ,  H04N25/78

    CPC分类号： G01T1/17 ,  G01T1/20184 ,  H04N25/671 ,  H04N25/30 ,  H04N25/78

    摘要： A radiation detector includes control and data lines extending respectively in mutually-orthogonal first and second directions, photoelectric conversion parts respectively in regions defined by the control and data lines, noise detecting parts outside a region including the photoelectric conversion parts, a control circuit inputting control signals to first and second thin film transistors located respectively in the photoelectric conversion and noise detecting parts, a signal detection circuit reading image data and noise signals respectively from the photoelectric conversion and noise detecting parts, and an image configuration circuit configuring a radiation image based on the signals that are read. The signals from the photoelectric conversion parts adjacent to the noise detecting parts are not read and/or are not used by the image configuration circuit when configuring the radiation image, and/or the photoelectric conversion parts adjacent to the noise detecting parts are not electrically connected with the control and/or signal detection circuits.

    Radiation detector
    59.
    发明授权
    Radiation detector 有权

    公开(公告)号：US11686865B2

    公开(公告)日：2023-06-27

    申请号：US17454107

    申请日：2021-11-09

    申请人： CANON MEDICAL SYSTEMS CORPORATION

    发明人： Go Kawata ,  Tatsuo Osaka

    IPC分类号： G01T1/20 ,  A61B6/00 ,  A61B6/03

    CPC分类号： G01T1/2018 ,  A61B6/032 ,  A61B6/4241

    摘要： A radiation detector according to an embodiment includes a scintillator array, a sensor array, electronic circuitry, a switch, and control circuitry. The scintillator array includes a plurality of scintillator pixels each configured to convert radiation into light. The sensor array includes a plurality of detection elements each configured to detect the light. The electronic circuitry is configured to output digital data on the basis of signals output from the detection elements. The switch is provided between the sensor array and the electronic circuitry. The control circuitry is configured to control the switch on the basis of a positional relation between the sensor array and the scintillator array.