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    Radiation detector and radiography apparatus
    1.
    发明授权
    Radiation detector and radiography apparatus 有权

    公开(公告)号：US12115011B2

    公开(公告)日：2024-10-15

    申请号：US17807858

    申请日：2022-06-20

    Applicant: FUJIFILM CORPORATION

    Inventor： Hisatsugu Horiuchi ,  Munetaka Kato ,  Tatsuya Taneichi ,  Naoyuki Nishino ,  Takeyasu Kobayashi

    IPC: A61B6/00 ,  A61B6/03 ,  A61B6/40 ,  G01N23/046

    CPC classification number: A61B6/4435 ,  A61B6/032 ,  A61B6/4085 ,  G01N23/046 ,  G01N2223/419

    Abstract: A radiation detector includes a sensor panel unit, a support table to which the sensor panel unit is attached, and two fixing members. The sensor panel unit includes two sensor panels. The sensor panel has pixels that sense visible light converted from radiation and generate charge. The sensor panel unit has a configuration in which an end portion of one sensor panel and an end portion of the other sensor panel are arranged to overlap each other in a thickness direction. A first fixing member fixes two sensor panels in an overlap region in which the end portions overlap. A second fixing member fixes the sensor panel unit and the support table in the overlap region. The second fixing member at least partially overlaps the first fixing member in the overlap region in a plan view of the sensor panel unit in the thickness direction.

    Radiography system and method for operating radiography system
    2.
    发明授权
    Radiography system and method for operating radiography system 有权

    公开(公告)号：US10603000B2

    公开(公告)日：2020-03-31

    申请号：US16059673

    申请日：2018-08-09

    Applicant: FUJIFILM Corporation

    Inventor： Masato Hattori ,  Ryo Imamura ,  Haruyasu Nakatsugawa ,  Koichi Kitano ,  Naoyuki Nishino

    IPC: A61B6/00 ,  A61B6/08

    Abstract: In the radiography system, a camera provided in an X-ray source captures a camera image indicating a usage environment in which an electronic cassette is used. The electronic cassette is inserted into the field of view of the camera. An in-image cassette region of the electronic cassette is detected from the camera image. A cassette ID of the electronic cassette is acquired from the in-image cassette region. The acquired cassette ID is collated with registration information set in a console and a use cassette setting process is performed on the basis of the collation result.

    Radiation detector and radiological image radiographing apparatus
    3.
    发明授权
    Radiation detector and radiological image radiographing apparatus 有权

    公开(公告)号：US09784853B2

    公开(公告)日：2017-10-10

    申请号：US14875074

    申请日：2015-10-05

    Applicant: FUJIFILM Corporation

    Inventor： Naoyuki Nishino ,  Naoto Iwakiri ,  Haruyasu Nakatsugawa ,  Keiichiro Sato ,  Yasunori Ohta

    IPC: G01T1/22 ,  G01T1/20 ,  G01T1/202 ,  A61B6/00

    CPC classification number: G01T1/2012 ,  A61B6/4216 ,  A61B6/4283 ,  G01T1/2018 ,  G01T1/202

    Abstract: A radiation detector and a radiological image radiographing apparatus capable of improving the quality of an obtained radiological image without causing an additional cost are provided. A first scintillator configured to include columnar crystals generating first light corresponding to a radiation emitted through a TFT substrate is laminated on the other surface of the TFT substrate that has a first photoelectric conversion element, which has one surface from which a radiation is emitted and the other surface from which at least one of the first light and the second light is emitted and which generates electric charges corresponding to the light, and a first switching element. A second scintillator which generates second light corresponding to a radiation emitted through the first scintillator and has different energy characteristics of absorbed radiations from the first scintillator is laminated on a surface of the first scintillator not facing the TFT substrate.

    Radiographic image detection device, radiographic image detection method, and computer-readable storage medium
    4.
    发明授权
    Radiographic image detection device, radiographic image detection method, and computer-readable storage medium 有权

    公开(公告)号：US09671506B2

    公开(公告)日：2017-06-06

    申请号：US14958096

    申请日：2015-12-03

    Applicant: FUJIFILM Corporation

    Inventor： Yasunori Ohta ,  Naoyuki Nishino

    IPC: G01T1/20 ,  G01T1/17 ,  A61B6/00 ,  G01N23/04

    CPC classification number: G01T1/2018 ,  A61B6/548 ,  G01N23/04 ,  G01T1/17

    Abstract: A radiographic image detection device includes: an image pickup unit with plural radiation detection portions arrayed in a two-dimensional form and detect radiation, and that captures a radiographic image; a radiographic image generating unit having plural analog signal generating units that generate analog signals corresponding to radiation doses; a conversion unit that converts the generated analog signals into digital signals; a judging unit that judges whether or not level fluctuations of the generated analog signals are within a predetermined threshold value; and a control unit that controls the conversion unit such that an analog signal, at which it is judged that the level fluctuation is within the predetermined threshold value, is converted into a digital signal, and that controls the conversion unit such that an analog signal, at which it is judged that the level fluctuation has exceeded the predetermined threshold value, is not converted into a digital signal.

    Radiation imaging system
    5.
    发明授权
    Radiation imaging system 有权
    辐射成像系统

    公开(公告)号：US09322931B2

    公开(公告)日：2016-04-26

    申请号：US14107972

    申请日：2013-12-16

    Applicant: FUJIFILM Corporation

    Inventor： Yasunori Ohta ,  Haruyasu Nakatsugawa ,  Naoyuki Nishino ,  Naoto Iwakiri

    IPC: G01J1/42 ,  G01T1/17 ,  G01T1/20 ,  A61B6/02 ,  A61B6/00 ,  A61B6/04

    CPC classification number: G01T1/17 ,  A61B6/025 ,  A61B6/0407 ,  A61B6/4233 ,  A61B6/4283 ,  A61B6/4452 ,  G01T1/2014

    Abstract: This radiation imaging system has a radiation source, a case, and a radiation detection device which is housed in the case, and is equipped with a radiation detector having a conversion unit that converts radiation from the radiation source, which has passed through at least a subject, to radiation image information, wherein a prediction is made as to whether the afterimage phenomenon has occurred in the conversion unit, and if it is predicted that the phenomenon has occurred, at least the conversion unit is moved.

    Abstract translation: 这种放射线成像系统具有辐射源，外壳和辐射检测装置，其被容纳在壳体中，并且配备有具有转换单元的辐射检测器，该转换单元转换来自辐射源的辐射，该辐射源已经通过至少一个 对辐射图像信息进行预测，其中对转换单元中是否发生余像现象进行预测，并且如果预测出现现象，至少转换单元被移动。

    Radiation detector and radiography apparatus
    8.
    发明授权
    Radiation detector and radiography apparatus 有权

    公开(公告)号：US11828893B2

    公开(公告)日：2023-11-28

    申请号：US17807383

    申请日：2022-06-17

    Applicant: FUJIFILM CORPORATION

    Inventor： Hisatsugu Horiuchi ,  Takashi Tajima ,  Masakazu Fukuyo ,  Naoyuki Nishino ,  Takeyasu Kobayashi

    IPC: G01T1/20 ,  G01T7/00

    CPC classification number: G01T7/00 ,  G01T1/2018

    Abstract: A radiation detector includes a support table, a sensor panel, a fixing member, and a contact member. An attachment surface having an arc surface shape is formed in the support table. The sensor panel has an imaging region in which a plurality of pixels detecting radiation are two-dimensionally arranged. A first surface of the sensor panel is attached to the attachment surface following the arc surface shape. The fixing member partially fixes the first surface to the attachment surface. The contact member comes into contact with a second surface of the sensor panel which is opposite to the first surface to suppress the lifting of the sensor panel from the support table.

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