公开(公告)号：WO2017082250A1

公开(公告)日：2017-05-18

申请号：PCT/JP2016/083104

申请日：2016-11-08

Applicant: CANON KABUSHIKI KAISHA

Inventor： KAMESHIMA, Toshio ,  OKADA, Hideyuki ,  SATO, Eriko

IPC: A61B6/00 ,  G01T7/00

CPC classification number: H04N5/32 ,  A61B6/4233 ,  A61B6/542 ,  A61B6/545 ,  G01T7/00

Abstract: A radiation imaging system includes a two-dimensional array in which a plurality of elements which detect radiation are two-dimensionally arrayed. The plurality of elements includes a plurality of detectors usable for exposure control of stopping radiation irradiation in accordance with a fact that a radiation irradiation dose has reached a target irradiation dose. The radiation imaging system includes a controller configured to determine, based on a setting of a reading manner of signals from the plurality of detectors, a minimum irradiation time required from the start of radiation irradiation until the stop of radiation irradiation according to signals from the two-dimensional array and perform an error process when the minimum irradiation time exceeds a reference irradiation time.

Abstract translation: 放射线成像系统包括其中检测放射线的多个元件被二维排列的二维阵列。 根据放射线照射剂量达到目标照射剂量的事实，多个元件包括可用于停止放射线照射的曝光控制的多个检测器。 放射线成像系统包括控制器，该控制器被配置为基于来自多个检测器的信号的读取方式的设置来确定从放射线照射开始直到停止放射线照射所需的最小照射时间，根据来自两个 三维阵列并在最小照射时间超过参考照射时间时执行错误过程。

公开(公告)号：WO2017006543A1

公开(公告)日：2017-01-12

申请号：PCT/JP2016/003120

申请日：2016-06-29

Applicant: CANON KABUSHIKI KAISHA

Inventor： SATO, Eriko ,  KAMESHIMA, Toshio ,  OKADA, Hideyuki

IPC: G01T7/00 ,  A61B6/00 ,  H01L27/146 ,  H04N5/32 ,  H04N5/374

CPC classification number: H04N5/32 ,  H01L27/14663

Abstract: A radiation imaging apparatus includes a pixel array, an output unit, a calculating unit, and a controller. The pixel array includes a plurality of pixels for outputting an image signal according to radiation emitted from a radiation generating apparatus. The output unit outputs a signal for calculating the irradiation dose of the radiation emitted to the pixel array. The calculating unit calculates an error due to a trailing edge waveform of data on the basis of a leading edge waveform of the data. The data indicates the waveform of the signal that is output from the output unit. The controller controls a timing at which a control signal for requesting the radiation generating apparatus to stop the emission of the radiation is output, on the basis of the error calculated by the calculating unit.

Abstract translation: 辐射成像装置包括像素阵列，输出单元，计算单元和控制器。 像素阵列包括用于根据从辐射发生装置发射的辐射输出图像信号的多个像素。 输出单元输出用于计算发射到像素阵列的辐射的照射剂量的信号。 计算单元基于数据的前沿波形来计算由于数据的后沿波形引起的误差。 数据表示从输出单元输出的信号的波形。 控制器根据由计算单元计算的误差来控制用于请求放射线发生装置的控制信号停止辐射的发射的定时。

公开(公告)号：WO2017094393A1

公开(公告)日：2017-06-08

申请号：PCT/JP2016/081283

申请日：2016-10-21

Applicant: CANON KABUSHIKI KAISHA

Inventor： TAKENAKA, Katsuro ,  YAGI, Tomoyuki ,  RYU, Takuya ,  TAKEDA, Shinichi ,  OKADA, Hideyuki ,  SATO, Eriko

IPC: H04N5/353 ,  A61B6/00 ,  G01T7/00 ,  H01L27/144 ,  H01L27/146 ,  H04N5/32 ,  H04N5/374

CPC classification number: H04N5/32 ,  A61B6/4233 ,  A61B6/542 ,  H01L27/14612 ,  H01L27/14623 ,  H01L27/14636 ,  H01L27/14663 ,  H04N5/35563 ,  H04N5/361

Abstract: A radiation imaging apparatus, including a plurality of pixels, a plurality of column lines and a processor, the plurality of pixels including first pixels and second pixels configured to generate signals of different values by receiving radiation rays of equal irradiation rates, and the plurality of pixels being arrayed such that their numbers are different between a first column and a second column of the plurality of columns, wherein the processor, after radiation irradiation is started, obtains a first signal of the first column and a second signal of the second column while maintaining each pixel to an OFF state and performs AEC based on the first and second signals.

Abstract translation: 放射线成像装置包括多个像素，多个列线和处理器，所述多个像素包括第一像素和第二像素，所述第一像素和第二像素被配置为通过接收 相等的照射率，并且所述多个像素排列为使得它们的数量在所述多列的第一列和第二列之间不同，其中所述处理器在辐射照射开始之后获得第一列的第一信号，以及 第二列的第二信号，同时保持每个像素处于关闭状态并基于第一和第二信号执行AEC。

公开(公告)号：WO2017002301A1

公开(公告)日：2017-01-05

申请号：PCT/JP2016/002573

申请日：2016-05-27

Applicant: CANON KABUSHIKI KAISHA

Inventor： SATO, Eriko ,  KAMESHIMA, Toshio ,  YAGI, Tomoyuki ,  OKADA, Hideyuki ,  RYU, Takuya

IPC: H04N5/32 ,  A61B6/00 ,  G01T1/20 ,  G03B42/02

CPC classification number: G03B7/08 ,  A61B6/542 ,  G01T1/17 ,  G03B42/02 ,  H04N5/32

Abstract: A radiation imaging apparatus that includes a plurality of sensors, a readout unit and a control unit, wherein the control unit performs a first control of reading out signals from sensors after radiation irradiation is started, and a second control of outputting a control signal to end the radiation irradiation when a calculated value calculated based on an output of the readout unit in the first control reaches a reference value, and the control unit, in the first control, reads out the signals from the sensors by changing a signal amplification ratio of the readout unit such that a value of an output of the readout unit is not saturated, and, in the second control, calculates the calculated value by accumulating the output of the readout unit in consideration of the signal amplification ratio.

Abstract translation: 一种包括多个传感器，读出单元和控制单元的放射线成像设备，其中所述控制单元执行在辐射照射开始之后从传感器读出信号的第一控制，以及输出控制信号结束的第二控制 当基于第一控制中的读出单元的输出计算出的计算值达到基准值时的放射线照射，并且在第一控制中，控制单元通过改变传感器的信号放大率来读出来自传感器的信号 读出单元，使得读出单元的输出值不饱和，并且在第二控制中，考虑到信号放大率，通过累加读出单元的输出来计算计算值。

公开(公告)号：WO2016189849A1

公开(公告)日：2016-12-01

申请号：PCT/JP2016/002489

申请日：2016-05-23

Applicant: CANON KABUSHIKI KAISHA

Inventor： OKADA, Hideyuki ,  KAMESHIMA, Toshio ,  YAGI, Tomoyuki ,  SATO, Eriko ,  RYU, Takuya

IPC: H04N5/32 ,  A61B6/00 ,  G01T7/00 ,  H04N5/353

CPC classification number: H05G1/38 ,  G01N23/04 ,  G01T1/17 ,  H04N5/32

Abstract: A radiation imaging apparatus includes a pixel array including pixels for detecting radiation and column signal lines, a detector for detecting signals that appear in the column signal lines, and a controller. Each pixel includes a conversion element for converting radiation into an electrical signal and a switch for connecting the conversion element and a column signal line. In a state in which the switches of the pixels irradiated with radiation are open, the detector detects, as a radiation signal, a signal appearing in at least one column signal line. The controller converts an integrated value of the radiation signal into an integrated irradiation amount of radiation. The controller determines, based on the radiation signal and a signal read out by the detector from at least one pixel in a state in which the switch of the at least one pixel of the pixels is closed, a conversion coefficient to convert the integrated value into the integrated irradiation amount.

Abstract translation: 辐射摄像装置包括：像素阵列，包括用于检测辐射和列信号线的像素;检测器，用于检测出现在列信号线中的信号;以及控制器。 每个像素包括用于将辐射转换成电信号的转换元件和用于连接转换元件和列信号线的开关。 在其中照射了辐射的像素的开关打开的状态下，检测器检测出至少一列信号线中的信号作为辐射信号。 控制器将辐射信号的积分值转换成辐射的积分照射量。 控制器基于辐射信号和在像素的至少一个像素的开关闭合的状态下的至少一个像素由检测器读出的信号，将将积分值转换为 综合照射量。