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219 条记录 (耗时 0.031 秒)

    Dose rate monitoring device
    1.
    发明授权
    Dose rate monitoring device 有权

    公开(公告)号：US10004132B2

    公开(公告)日：2018-06-19

    申请号：US15505548

    申请日：2014-10-23

    申请人： Mitsubishi Electric Corporation

    发明人： Toshihide Aiba ,  Kenichi Moteki

    IPC分类号： G01T1/02 ,  H05G1/44 ,  G01T1/17

    CPC分类号： H05G1/44 ,  G01T1/023 ,  G01T1/026 ,  G01T1/17

    摘要： A dose rate monitoring device includes: a first energy compensation coefficient operation part obtaining a first energy compensation coefficient to incident radiation using the first compensation coefficient table, a first dose rate operation part obtaining a first compensation dose rate of incident radiation using the first energy compensation coefficient and G (E) function, a second energy compensation coefficient operation part obtaining a second energy compensation coefficient to incident radiation using a second compensation coefficient table, a second dose rate operation part obtaining a second compensation dose rate of incident radiation using a second energy compensation coefficient, a dose rate switching section which select an output according to the magnitude of a ratio of the first compensation dose rate to the second compensation dose rate, and a display operating section which displays the first compensation dose rate or the second compensation dose rate which the dose rate switching section outputs.

    RADIATION DETECTION APPARATUS, METHOD OF CONTROLLING THE SAME, AND NON-TRANSITORY COMPUTER-READABLE STORAGE MEDIUM
    4.
    发明申请
    RADIATION DETECTION APPARATUS, METHOD OF CONTROLLING THE SAME, AND NON-TRANSITORY COMPUTER-READABLE STORAGE MEDIUM 审中-公开
    辐射检测装置，其控制方法，以及非终端计算机可读存储介质

    公开(公告)号：US20150378030A1

    公开(公告)日：2015-12-31

    申请号：US14750038

    申请日：2015-06-25

    申请人： CANON KABUSHIKI KAISHA

    发明人： Toshikazu Tamura ,  Taro Hiroike

    IPC分类号： G01T1/17 ,  G01N23/04 ,  G01T1/02

    CPC分类号： G01T1/17 ,  A61B6/542 ,  G01N23/04 ,  G01T1/02 ,  H04N5/32 ,  H04N5/3765 ,  H05G1/44

    摘要： A radiation detection apparatus detects radiation and generates irradiation sensing information corresponding to a dose of detected radiation, senses whether radiation emitted from a radiation generator is detected, based on the generated irradiation sensing information, and receives a control signal from a controller. The apparatus switches detectability for detection of the radiation based on a control signal received from the controller.

    摘要翻译： 辐射检测装置基于所生成的照射感测信息，检测辐射并产生与检测到的辐射的剂量相对应的照射感测信息，感测是否检测到从辐射发生器发射的辐射，并且从控制器接收控制信号。 该设备基于从控制器接收的控制信号切换检测辐射​​的检测能力。

    RADIATION IMAGING APPARATUS AND CONTROL METHOD THEREOF, AND RADIATION IMAGING SYSTEM
    5.
    发明申请
    RADIATION IMAGING APPARATUS AND CONTROL METHOD THEREOF, AND RADIATION IMAGING SYSTEM 审中-公开
    辐射成像装置及其控制方法及辐射成像系统

    公开(公告)号：US20150297167A1

    公开(公告)日：2015-10-22

    申请号：US14789599

    申请日：2015-07-01

    申请人： FUJIFILM Corporation

    发明人： Tetsuya TSUJI

    IPC分类号： A61B6/00

    CPC分类号： H05G1/44 ,  A61B6/4233 ,  A61B6/4283 ,  A61B6/52 ,  A61B6/542 ,  A61B6/548 ,  A61B2560/0214 ,  A61B2560/0266 ,  A61N5/1071 ,  G01N2223/306 ,  G01T1/02 ,  H01L27/144 ,  H01L27/146 ,  H01L27/14605 ,  H01L27/14812 ,  H05G1/38 ,  H05G1/56

    摘要： An FPD detects an X-ray image of an object. The FPD includes a plurality of pixels arranged in its image capturing field. Each pixel receives X-rays emitted from an X-ray source, and outputs a pixel value in accordance with an X-ray dose applied thereto. A pixel determiner determines a minimum-value pixel out of the pixels based on the pixel values of the pixels. The minimum-value pixel is a pixel whose pixel value is the lowest. The pixel determiner sets the minimum-value pixel as an exposure control pixel. A comparator compares a first integrated value, which is an integrated value of the pixel values of the minimum-value pixel, with a predetermined first threshold value. The comparator performs X-ray emission control such that, when the first integrated value has reached the first threshold value, the X-ray source stops emitting the X-rays.

    摘要翻译： FPD检测物体的X射线图像。 FPD包括布置在其图像捕获领域中的多个像素。 每个像素接收从X射线源发射的X射线，并且根据应用于其的X射线剂量输出像素值。 像素确定器基于像素的像素值来确定像素中的最小值像素。 最小值像素是其像素值最低的像素。 像素确定器将最小值像素设置为曝光控制像素。 比较器将作为最小值像素的像素值的积分值的第一积分值与预定的第一阈值进行比较。 比较器执行X射线发射控制，使得当第一积分值达到第一阈值时，X射线源停止发射X射线。

    RADIATION IMAGE DETECTING DEVICE, RADIATION IMAGING SYSTEM AND OPERATION METHOD THEREOF
    6.
    发明申请
    RADIATION IMAGE DETECTING DEVICE, RADIATION IMAGING SYSTEM AND OPERATION METHOD THEREOF 有权
    辐射图像检测装置，放射成像系统及其操作方法

    公开(公告)号：US20150131784A1

    公开(公告)日：2015-05-14

    申请号：US14604352

    申请日：2015-01-23

    申请人： FUJIFILM CORPORATION

    发明人： Takashi TAJIMA ,  Takeshi KUWABARA ,  Yusuke KITAGAWA

    IPC分类号： A61B6/00

    CPC分类号： H01L27/14603 ,  A61B6/4233 ,  A61B6/4291 ,  A61B6/4452 ,  A61B6/542 ,  A61B6/585 ,  G01T1/026 ,  G01T1/1603 ,  H01L27/1446 ,  H01L27/14658 ,  H01L27/14812 ,  H05G1/28 ,  H05G1/38 ,  H05G1/42 ,  H05G1/44

    摘要： An image detector is disposed behind a grid. The image detector has normal pixels and measurement pixels. Out of a group of measurement pixels based on which an average value of dose measurement signals is calculated, a [C/D] number of measurement pixels are disposed or chosen in a cycle Z=(R×C)±D. Wherein, C represents a cycle of a repetition pattern appearing in an arrangement direction of X-ray transparent layers and X-ray absorbing layers in an X-ray image of the grid, and is represented in units of the number of pixels. R represents a natural number of 0 or more. D represents an integer less than the cycle C. [C/D] represents a maximum integer equal to or less than C/D. Provided that at least the [C/D] number of measurement pixels are shifted C occasions by one pixel, if D=1, the average value of the dose measurement signals is invariable without any variations.

    摘要翻译： 图像检测器设置在格栅后面。 图像检测器具有正常的像素和测量像素。 在基于其计算剂量测量信号的平均值的一组测量像素中，在周期Z =（R×C）±D中设置或选择测量像素的[C / D]数量。 其中，C表示在格子的X射线图像中的X射线透明层和X射线吸收层的配置方向上出现的重复图案的周期，以像素数为单位表示。 R表示0以上的自然数。 D表示小于循环C的整数。[C / D]表示等于或小于C / D的最大整数。 假设至少将[C / D]个测量像素数C位移一个像素，如果D = 1，则剂量测量信号的平均值是不变的，没有任何变化。

    Photo timer and radiographic apparatus
    7.
    发明授权
    Photo timer and radiographic apparatus 有权
    照片定时器和放射照相设备

    公开(公告)号：US07528376B2

    公开(公告)日：2009-05-05

    申请号：US11194763

    申请日：2005-08-02

    申请人： Takashi Shoji

    发明人： Takashi Shoji

    IPC分类号： H01L27/146

    CPC分类号： H05G1/44

    摘要： A photo timer includes an X-ray dose detector for detecting the dose of X-rays irradiated from an X-ray irradiation apparatus, a stop-signal output means for outputting a stop signal to stop irradiation of the X-rays from the X-ray irradiation apparatus when the detected X-ray dose exceeds a predetermined value, and a communication means for sending the stop signal to the X-ray irradiation apparatus by wireless means. A radiographic apparatus includes the photo timer, a solid state detector for recording image information by irradiation of X-rays which carry the image information and outputting an image signal representing the image information, and a communication means for sending the image signal to a photography control means by wireless means. Further, cables are not required to connect the X-radiographic apparatus (photo timer) and the X-ray irradiation apparatus, or the X-radiographic apparatus and the photography control means.

    摘要翻译： 光计时器包括：X射线剂量检测器，用于检测从X射线照射装置照射的X射线的剂量;停止信号输出装置，用于输出停止信号以停止来自X射线的X射线的照射; 当检测到的X射线剂量超过预定值时，射线照射装置和用于通过无线装置将停止信号发送到X射线照射装置的通信装置。 放射线照相设备包括照相定时器，固态检测器，用于通过照射携带图像信息的X射线记录图像信息并输出表示图像信息的图像信号;以及通信装置，用于将图像信号发送到摄影控制 用无线手段表示。 此外，不需要电缆来连接X射线照相装置（照相定时器）和X射线照射装置，X射线照相装置和摄影控制装置。

    X-ray examination apparatus with exposure control
    8.
    发明授权
    X-ray examination apparatus with exposure control 有权

    公开(公告)号：US07103143B2

    公开(公告)日：2006-09-05

    申请号：US11127368

    申请日：2005-05-12

    申请人： Peter Lex Alving ,  Albert Louw Faber

    发明人： Peter Lex Alving ,  Albert Louw Faber

    IPC分类号： G01B15/02 ,  H05G1/44

    CPC分类号： H05G1/46 ,  A61B6/488 ,  A61B6/542 ,  H04N5/32 ,  H05G1/30 ,  H05G1/42 ,  H05G1/44

    摘要： An X-ray examination apparatus includes an X-ray source, an X-ray detector and an exposure control system. The exposure control system is arranged to control the X-ray source so as to perform a test exposure at a low X-ray dose and to perform an X-ray exposure at a higher X-ray dose. The X-ray detector applies a control signal resulting from the test exposure to the exposure control system and the X-ray source is adjusted on the basis of this control signal. The X-ray exposure produces an X-ray image and the X-ray detector supplies an image signal representing this X-ray image. The exposure control system is arranged to adjust the X-ray detector to a low spatial resolution during the test exposure and to a high spatial resolution during the X-ray exposure. The X-ray detector preferably includes a sensor matrix having sensor elements arranged in columns and rows. The spatial resolution is adjusted by deriving the control signal and the image signal from large and small groups of sensor elements, respectively.

    X-ray examination apparatus with exposure control
    9.
    发明申请
    X-ray examination apparatus with exposure control 有权
    具有曝光控制的X射线检查装置

    公开(公告)号：US20040013229A1

    公开(公告)日：2004-01-22

    申请号：US10395785

    申请日：2003-03-24

    发明人： Peter Lex Alving ,  Albert Louw Faber

    IPC分类号： G01T001/36

    CPC分类号： H05G1/46 ,  A61B6/488 ,  A61B6/542 ,  H04N5/32 ,  H05G1/30 ,  H05G1/42 ,  H05G1/44

    摘要： An X-ray examination apparatus includes an X-ray source, an X-ray detector and an exposure control system. The exposure control system is arranged to control the X-ray source so as to perform a test exposure at a low X-ray dose and to perform an X-ray exposure at a higher X-ray dose. The X-ray detector applies a control signal resulting from the test exposure to the exposure control system and the X-ray source is adjusted on the basis of this control signal. The X-ray exposure produces an X-ray image and the X-ray detector supplies an image signal representing this X-ray image. The exposure control system is arranged to adjust the X-ray detector to a low spatial resolution during the test exposure and to a high spatial resolution during the X-ray exposure. The X-ray detector preferably includes a sensor matrix having sensor elements arranged in columns and rows. The spatial resolution is adjusted by deriving the control signal and the image signal from large and small groups of sensor elements, respectively.

    摘要翻译： X射线检查装置包括X射线源，X射线检测器和曝光控制系统。 曝光控制系统被设置为控制X射线源，以便以低X射线剂量进行测试曝光并且以较高X射线剂量执行X射线曝光。 X射线检测器将由测试曝光产生的控制信号施加到曝光控制系统，并且基于该控制信号调整X射线源。 X射线曝光产生X射线图像，X射线检测器提供表示该X射线图像的图像信号。 曝光控制系统被布置成在测试曝光期间将X射线检测器调整到低空间分辨率，并在X射线曝光期间将其调整到高空间分辨率。 X射线检测器优选地包括具有以行和列排列的传感器元件的传感器矩阵。 通过分别从大和小组的传感器元件导出控制信号和图像信号来调整空间分辨率。