公开(公告)号：US20140027650A1

公开(公告)日：2014-01-30

申请号：US14039723

申请日：2013-09-27

Applicant: FUJIFILM Corporation

Inventor： Toshitaka AGANO ,  Yasuko YAHIRO ,  Takao KUWABARA ,  Yasunori OHTA

IPC: G01N23/04

CPC classification number: G01N23/046 ,  A61B6/022 ,  A61B6/025 ,  A61B6/4233 ,  A61B6/4452 ,  A61B6/4494 ,  A61B6/502 ,  A61B6/5258 ,  H04N5/32

Abstract: A radiation detector for detecting irradiated radiation that includes: a converting layer for converting radiation irradiated from a radiation source capable of irradiating radiation from two imaging directions, which are different from each other, into electric charges; and a plurality of pixel electrodes for collecting the converted charges. In the radiation detector, when at least one of the two imaging directions forms a specified angle θ with respect to the direction that is orthogonal to the detector plane of the radiation detector, the thickness d of the converting layer and the sizes p of the pixel electrodes satisfy the condition: d·tan θ

Abstract translation: 一种用于检测照射辐射的辐射检测器，包括：转换层，用于将辐射源辐射的辐射源转换成能够彼此不同的两个成像方向的辐射; 以及用于收集转换的电荷的多个像素电极。 在辐射检测器中，当两个成像方向中的至少一个相对于与辐射检测器的检测器平面正交的方向形成指定的角度θ时，转换层的厚度d和像素的尺寸p 电极满足条件：d·tanθ

公开(公告)号：US20140241508A1

公开(公告)日：2014-08-28

申请号：US14266220

申请日：2014-04-30

Applicant: FUJIFILM CORPORATION

Inventor： Toshitaka AGANO ,  Takao KUWABARA ,  Hitoshi SHIMIZU

IPC: A61N5/10 ,  H01J35/12 ,  H01J35/16

CPC classification number: A61N5/1077 ,  A61N2005/1094 ,  A61N2005/1095 ,  G21K1/02 ,  H01J35/00 ,  H01J35/12 ,  H01J35/16 ,  H05G2/00

Abstract: A radiation irradiation device is provided that includes: a metal target that emits bremsstrahlung X-rays as a radiation beam due to irradiation with an electron beam; a radiation shielding member that includes a slit-shaped radiation passage portion and that is disposed downstream of the metal target in the radiation beam emission direction and is disposed such that a portion of the radiation beam passes through the radiation passage portion and the radiation beam incident to regions other than the radiation passage portion is blocked; and an electron beam generating device that irradiates, onto the metal target, an electron beam such that a diameter at a generation point of the emitted radiation beam is smaller than a length of an entry portion of the radiation passage portion along a length direction of the entry portion.

Abstract translation: 提供了一种辐射照射装置，其包括：由于用电子束照射而发射作为辐射束的bre致辐射X射线的金属靶; 辐射屏蔽构件，其包括狭缝状辐射通道部分，并且沿辐射束发射方向设置在金属靶的下游，并且被布置成使得辐射束的一部分穿过辐射通道部分和辐射束入射 到除辐射通道部分以外的区域被阻挡; 以及电子束产生装置，其向金属靶上照射电子束，使得发射的辐射束的发生点处的直径小于沿着辐射束的长度方向的辐射通道部分的入口部分的长度 进入部分。

公开(公告)号：US20130235973A1

公开(公告)日：2013-09-12

申请号：US13871350

申请日：2013-04-26

Applicant: FUJIFILM CORPORATION

Inventor： Dai MURAKOSHI ,  Toshitaka AGANO ,  Wataru ITO ,  Shinji IMAI

IPC: A61B6/00

CPC classification number: A61B6/484 ,  A61B6/4233 ,  A61B6/4291 ,  A61B6/4464 ,  A61B6/502 ,  G01N23/046 ,  G01N2223/419 ,  G01N2223/612 ,  G01T1/246 ,  G21K2207/005

Abstract: A radiographic phase-contrast imaging apparatus obtains a phase-contrast image using two gratings including the first grating and the second grating. The first and second gratings are adapted to form a moire pattern when a periodic pattern image formed by the first grating is superimposed on the second grating. Based on the moire pattern detected by the radiographic image detector, image signals of the fringe images, which correspond to pixel groups located at different positions with respect to a predetermined direction, are obtained by obtaining image signals of pixels of each pixel group, which includes pixels arranged at predetermined intervals in the predetermined direction, as the image signal of each fringe image, where the predetermined direction is a direction parallel to or intersecting a period direction of the moire pattern other than a direction orthogonal to the period direction. Then, a phase-contrast image is generated based on the obtained fringe images.

Abstract translation: 射线相位成像装置使用包括第一光栅和第二光栅的两个光栅获得相位对比度图像。 当由第一光栅形成的周期性图案图像叠加在第二光栅上时，第一和第二光栅适于形成莫尔图案。 基于由放射线照相图像检测器检测到的波纹图案，通过获得每个像素组的像素的图像信号，获得与相对于预定方向位于不同位置处的像素组对应的条纹图像的图像信号， 作为每个条纹图像的图像信号，其中预定方向是与波纹图案的周期方向平行或相交的方向，而不是与周期方向正交的方向。 然后，基于获得的条纹图像生成相位对比图像。

公开(公告)号：US20130082184A1

公开(公告)日：2013-04-04

申请号：US13685725

申请日：2012-11-27

Applicant: FUJIFILM CORPORATION

Inventor： Haruyasu NAKATSUGAWA ,  Naoyuki NISHINOU ,  Yasunori OHTA ,  Toshitaka AGANO ,  Fumito NARIYUKI ,  Naoto IWAKIRI

IPC: G01T1/24

CPC classification number: G01T1/24 ,  A61B6/4208 ,  A61B6/4266 ,  A61B6/4283 ,  A61B6/502 ,  A61B6/56 ,  G01T1/2018

Abstract: The present invention provides a radiographic imaging device that may image radiographic images with high sharpness while suppressing a drop in sensitivity. Namely, a radiation detector, in which a scintillator that generates light due to irradiation of radiation and a TFT substrate on which plural sensor portions configured including an organic photoelectric conversion material that generates electric charges by receiving light are disposed are sequentially layered, is positioned in such a way that radiation that has passed through a subject is made incident from the TFT substrate side.

Abstract translation: 本发明提供一种放射摄影成像装置，其可以在抑制灵敏度下降的同时以高锐度图像摄影图像。 也就是说，放射线检测器，其中设置有由辐射照射而产生光的闪烁体和配置有多个包含通过接收光产生电荷的有机光电转换材料的传感器部分的TFT基板，其被定位在 使得已经通过被摄体的辐射从TFT基板侧入射的方式。

公开(公告)号：US20150025382A1

公开(公告)日：2015-01-22

申请号：US14509093

申请日：2014-10-08

Applicant: FUJIFILM Corporation

Inventor： Toshitaka AGANO

IPC: A61B8/08 ,  A61B8/00 ,  A61B8/14

CPC classification number: A61B8/5292 ,  A61B8/145 ,  A61B8/4488 ,  A61B8/4494 ,  A61B8/463 ,  A61B8/5207 ,  A61B8/5223 ,  A61B8/5269 ,  A61B8/54 ,  G01H5/00 ,  G01S7/52036 ,  G01S7/52049 ,  G01S7/52071 ,  G01S7/52073 ,  G01S7/52074

Abstract: An ultrasound diagnostic apparatus includes an ultrasound image producer which produces an ultrasound image from reception data based on a predetermined set sound speed, a reception data image producer which produces a reception data image representing a luminance image of an ultrasonic echo wavefront from the reception data corresponding to a predetermined range on at least one scan line in the ultrasound image, a sound speed determination unit configured to determine an optimum sound speed based on ultrasound images respectively produced by the ultrasound image producer while changing the predetermined set sound speed, and a controller which makes an ultrasound image for diagnosis produced by the ultrasound image producer and the reception data image produced by the reception data image producer be displayed simultaneously on a display unit based on the optimum sound speed determined by the sound speed determination unit.

Abstract translation: 超声波诊断装置包括：超声波图像生成器，其基于预定的设定声速从接收数据产生超声波图像;接收数据图像生成器，其从对应的接收数据产生表示超声波回波波前的亮度图像的接收数据图像 在超声波图像中的至少一条扫描线上的预定范围内，声速确定单元，被配置为基于在改变预定设定声速的同时由超声波图像生成器分别产生的超声图像来确定最佳声速;以及控制器， 基于由声速确定单元确定的最佳声速，使由超声波图像产生器产生的用于诊断的超声波图像和由接收数据图像产生器产生的接收数据图像同时显示在显示单元上。