公开(公告)号：US09383458B2

公开(公告)日：2016-07-05

申请号：US14802448

申请日：2015-07-17

Applicant: FUJIFILM Corporation

Inventor： Yoshihiro Okada

IPC: G01T1/24 ,  G01N23/04 ,  G01T1/208 ,  H04N5/3745 ,  H01L27/146 ,  H04N5/32 ,  H04N5/378

CPC classification number: G01T1/247 ,  G01N23/04 ,  G01T1/208 ,  H01L27/14658 ,  H01L27/14663 ,  H04N5/32 ,  H04N5/37457 ,  H04N5/378

Abstract: The present invention provides radiation detector, radiographic imaging device and radiographic imaging system that may detect irradiated radiation while maintaining quality of radiographic image. The radiation detector has: pixels having a sensor portion that generates charges in accordance with light converted from irradiated radiation, TFT switch that outputs, to a signal line, charges read-out from the sensor portion, and radiation detection TFT switch that is not connected to a signal line; and radiation detection pixels that have the sensor portion, the TFT switch, and radiation detection TFT switch that is connected to a signal line and that outputs, to the signal line, charges read-out from the sensor portion. The radiation detection TFT switches are connected to radiation detection scan lines, and ON/OFF states are controlled by scan signals that are outputted from a radiation detection control circuit.

公开(公告)号：US08866090B2

公开(公告)日：2014-10-21

申请号：US13925256

申请日：2013-06-24

Applicant: FUJIFILM Corporation

Inventor： Yoshihiro Okada

IPC: G01T1/20 ,  H04N5/32

CPC classification number: G01T1/16 ,  G01T1/2006 ,  H04N5/32

Abstract: The present invention provides a radiation detecting element and a radiographic imaging device that may reliably detect radiation even when a region where radiation is irradiated is set narrowly. Namely, in the radiation detecting element and the radiographic imaging device of the present invention, plural pixels including radiographic imaging pixels and plural radiation detection pixels are disposed in a matrix in a detection region that detects radiation.

Abstract translation: 本发明提供一种放射线检测元件和放射线照相成像装置，其即使在照射辐射的区域被狭窄地设置的情况下也可以可靠地检测辐射。 也就是说，在本发明的放射线检测元件和射线照相成像装置中，将包括放射线摄像像素和多个放射线检测像素的多个像素以矩阵形式设置在检测辐射的检测区域中。

公开(公告)号：US08669530B1

公开(公告)日：2014-03-11

申请号：US14059447

申请日：2013-10-22

Applicant: FUJIFILM Corporation

Inventor： Yoshihiro Okada

IPC: G01T1/24

CPC classification number: G01T1/16 ,  H04N5/32 ,  H04N5/376

Abstract: The present invention provides a radiation detection element and a radiographic imaging device that may provide optimal resolution that corresponds to the purpose of imaging and to imaging speed, and that may suppress increase in device size. Namely, TFTs of plural pixels in a column direction are connected to the same signal lines. When a moving image is imaged, a control signal is output via a control line, the TFTs of the pixels are turned on, and the charges are read-out from sensor sections. Since the two pixels×two pixels are operated as one pixel and the charges are extracted, resolution may be lowered when compared with a still image and a frame rate may be improved.

Abstract translation: 本发明提供一种辐射检测元件和放射线照相成像装置，其可以提供对应于成像和成像速度的目的的最佳分辨率，并且可以抑制装置尺寸的增加。 即，列方向上的多个像素的TFT连接到相同的信号线。 当运动图像成像时，通过控制线输出控制信号，像素的TFT被接通，并且从传感器部分读出电荷。 由于两个像素×两个像素被操作为一个像素并且提取电荷，所以与静止图像相比可以降低分辨率，并且可以提高帧速率。

公开(公告)号：US11786194B2

公开(公告)日：2023-10-17

申请号：US17025566

申请日：2020-09-18

Applicant: FUJIFILM Corporation

Inventor： Yoshihiro Okada ,  Keiichi Akamatsu ,  Shinichi Ushikura ,  Munetaka Kato ,  Haruyasu Nakatsugawa

IPC: A61B6/00 ,  G01T1/20 ,  G01T1/161

CPC classification number: A61B6/4233 ,  A61B6/4208 ,  A61B6/4283 ,  A61B6/54 ,  G01T1/161 ,  G01T1/20 ,  G01T1/2002 ,  G01T1/2006 ,  G01T1/2018 ,  G01T1/20183 ,  G01T1/20184 ,  G01T1/20186 ,  G01T1/20188

Abstract: A radiation detector including: a substrate formed with plural pixels that accumulate electrical charges generated in response to light converted from radiation in a pixel region at an opposite-side surface of a base member to a surface including a fine particle layer; the base member being flexible and is made of resin and that includes a fine particle layer containing inorganic fine particles having a mean particle size of from 0.05 μm to 2.5 μm, a conversion layer provided at the surface of the base member provided with the pixel region and configured to convert the radiation into light; and a reinforcement substrate provided to at least one out of a surface on the substrate side of a stacked body configured by stacking the substrate and the conversion layer, or a surface on the conversion layer side of the stacked body.

公开(公告)号：US09651685B2

公开(公告)日：2017-05-16

申请号：US14658249

申请日：2015-03-16

Applicant: FUJIFILM CORPORATION

Inventor： Yoshihiro Okada

IPC: H01L27/146 ,  G01T1/24 ,  H01L31/0272 ,  H01L31/08

CPC classification number: G01T1/241 ,  G01T1/247 ,  H01L27/14603 ,  H01L27/14605 ,  H01L27/14632 ,  H01L27/14643 ,  H01L27/14676 ,  H01L31/0272 ,  H01L31/085

Abstract: A radiation detection element includes plural hexagonal pixels arrayed in a honeycomb form and having sensor portions that generate charges due to radiation being irradiated. The radiation detection element includes charge accumulating capacitors that accumulate generated charges, and TFT switches for reading-out the charges accumulated at the capacitors. The radiation detection element includes scan lines disposed parallel in a first direction, to which switching signals that control switching of the TFT switches are outputted; and data lines disposed parallel in a second direction intersecting the first direction, to which charges read-out by the TFT switches are outputted. The TFT switches are disposed to be, in the first direction, connected to the data lines from alternately different sides of the data line, and such that an arrangement of source electrodes and drain electrodes of the TFT switches is the same in the first direction.

公开(公告)号：US09091770B2

公开(公告)日：2015-07-28

申请号：US13688047

申请日：2012-11-28

Applicant: FUJIFILM Corporation

Inventor： Yoshihiro Okada

IPC: H01L27/146 ,  G01T1/24 ,  G01N23/04 ,  H04N5/32 ,  H04N5/378

CPC classification number: G01T1/247 ,  G01N23/04 ,  G01T1/208 ,  H01L27/14658 ,  H01L27/14663 ,  H04N5/32 ,  H04N5/37457 ,  H04N5/378

Abstract: The present invention provides radiation detector, radiographic imaging device and radiographic imaging system that may detect irradiated radiation while maintaining quality of radiographic image. The radiation detector has: pixels having a sensor portion that generates charges in accordance with light converted from irradiated radiation, TFT switch that outputs, to a signal line, charges read-out from the sensor portion, and radiation detection TFT switch that is not connected to a signal line; and radiation detection pixels that have the sensor portion, the TFT switch, and radiation detection TFT switch that is connected to a signal line and that outputs, to the signal line, charges read-out from the sensor portion. The radiation detection TFT switches are connected to radiation detection scan lines, and ON/OFF states are controlled by scan signals that are outputted from a radiation detection control circuit.

Abstract translation: 本发明提供了可以在保持射线照相图像质量的同时检测照射的辐射的放射线检测器，放射线照相成像装置和射线照相成像系统。 辐射检测器具有：具有根据照射辐射转换的光产生电荷的传感器部分的像素，向信号线输出从传感器部分读出的电荷的TFT开关和未连接的放射线检测TFT开关 到信号线; 以及具有传感器部分的放射线检测像素，TFT开关和辐射检测TFT开关，其连接到信号线，并且向信号线输出从传感器部分读出的电荷。 放射线检测用TFT开关与放射线检测用扫描线连接，ON / OFF状态由从放射线检测控制电路输出的扫描信号进行控制。

公开(公告)号：US08853645B2

公开(公告)日：2014-10-07

申请号：US13687703

申请日：2012-11-28

Applicant: Fujifilm Corporation

Inventor： Yoshihiro Okada ,  Tomoki Inoue

IPC: G01T1/16 ,  G01T1/24

CPC classification number: G01T1/16 ,  G01T1/247

Abstract: The present invention provides a radiographic image detector that may maintain even resolution in 6 directions before and after 3-pixel binning process. Namely, out of plural pixels with hexagonal shaped pixel regions in a radiation detector, for plural pixel groups respectively configured from 3 pixels, 3 pixels worth of charges in the radiation detector are read together, the charge signals of these 3 pixels combined, and integrated in sequence with a charge amplifier. For specific pixel groups, out of 3 pixels configuring the specific pixel groups, the charge signals of 2 pixels worth, and the charge signal of the remaining 1 pixel worth are summed with the same charge amplifier using shifted integration timings. 3-pixel binning is thereby performed.

Abstract translation: 本发明提供一种放射线图像检测器，其可以在3像素合并处理之前和之后在6个方向上保持均匀分辨率。 也就是说，在放射线检测器中具有六角形像素区域的多个像素中，对于分别由3个像素配置的多个像素组，在放射线检测器中的3个像素的电荷被一起读出，这3个像素的电荷信号被组合并被集成 与电荷放大器顺序。 对于特定像素组，在构成特定像素组的3个像素中，2个像素值的电荷信号和剩余1个像素的电荷信号值与使用偏移积分时序的相同电荷放大器相加。 由此进行3像素合并。

公开(公告)号：US08853640B2

公开(公告)日：2014-10-07

申请号：US14173832

申请日：2014-02-06

Applicant: FUJIFILM Corporation

Inventor： Yoshihiro Okada

IPC: G01T1/24 ,  H01L27/146

CPC classification number: G01T1/247 ,  H01L27/14603 ,  H01L27/14632 ,  H01L27/14658 ,  H01L27/14687

Abstract: The present invention provides a radiation detecting element that avoids the interline pitch of signal lines becoming narrower. Namely, the shape of pixels configuring the radiation detecting element is made hexagonal, and each of the pixels is arrayed in a honeycomb pattern. The position of the TFT switches in each of the pixels is disposed to the right side or the left side of the center of the pixels so as to be left-right direction different for each of the pixel rows, and common ground lines that fix storage capacitor lower electrodes of charge storage capacitors are configured laid out in substantially straight lines lower than pixel electrodes.

Abstract translation: 本发明提供一种避免信号线的线间距变窄的放射线检测元件。 也就是说，构成放射线检测元件的像素的形状为六边形，并且每个像素排列成蜂窝图案。 每个像素中的TFT开关的位置被设置在像素的中心的右侧或左侧，以使得每个像素行的左右方向不同，以及固定存储器的公共接地线 电容存储电容器的电容器下电极被配置成比像素电极低的基本直线。

公开(公告)号：US08629406B2

公开(公告)日：2014-01-14

申请号：US13958886

申请日：2013-08-05

Applicant: FUJIFILM Corporation

Inventor： Yoshihiro Okada

IPC: G01T1/24

CPC classification number: G01T1/17 ,  G01T1/20 ,  H04N5/32 ,  H04N5/3696

Abstract: The present invention provides a radiation detecting element and a radiographic imaging device that may reliably detect irradiation of radiation even when a region where radiation is irradiated is set narrowly. Namely, the present invention provides a radiation detection element and a radiographic imaging apparatus, in which radiographic imaging pixels and radiation detection pixels are provided at intersecting portions of scan lines and signal lines.

Abstract translation: 本发明提供一种放射线检测元件和射线照相成像装置，其即使在被辐射的区域被狭窄地设置时也可以可靠地检测辐射照射。 也就是说，本发明提供了一种放射线检测元件和射线照相成像装置，其中放射线成像像素和放射线检测像素设置在扫描线和信号线的交叉部分。

公开(公告)号：US09952335B2

公开(公告)日：2018-04-24

申请号：US15152010

申请日：2016-05-11

Applicant: FUJIFILM CORPORATION

Inventor： Yoshihiro Okada

IPC: G01T1/20 ,  H04N5/32

CPC classification number: G01T1/2018 ,  H04N5/32

Abstract: The present invention provides a radiation detector, a radiographic imaging device and a radiographic imaging system that may detect radiation with high precision. Namely, in the radiation detector, radiation detection pixels include detection TFTs, and light that has been converted from radiation is illuminated directly from a scintillator onto the detection TFTs. Accordingly, leak current occurs in semiconductor active layers of the detection TFTs corresponding to the amount (intensity) of the illuminated light, and the leak current flows in to signal lines. Accordingly, radiation may be detected by monitoring the leak current, and enables timings, such as the start of irradiation of radiation, to be detected.