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    Radiographic phase-contrast imaging apparatus
    4.
    发明授权
    Radiographic phase-contrast imaging apparatus 失效
    射线相位成像装置

    公开(公告)号：US08781069B2

    公开(公告)日：2014-07-15

    申请号：US13871350

    申请日：2013-04-26

    申请人： FUJIFILM Corporation

    发明人： Dai Murakoshi ,  Toshitaka Agano ,  Wataru Ito ,  Shinji Imai

    IPC分类号： G01N23/04 ,  A61B6/00

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

    摘要： 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.

    摘要翻译： 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。

    Radiation detecting apparatus, radiographic image capturing system, and radiographic image capturing method
    5.
    发明授权
    Radiation detecting apparatus, radiographic image capturing system, and radiographic image capturing method 有权
    放射线检测装置，放射线照相图像拍摄系统和放射线图像拍摄方法

    公开(公告)号：US08654926B2

    公开(公告)日：2014-02-18

    申请号：US13067642

    申请日：2011-06-16

    申请人： Yasunori Ohta ,  Naoyuki Nishino ,  Yutaka Yoshida ,  Keiji Tsubota ,  Masato Hattori ,  Naoto Iwakiri

    发明人： Yasunori Ohta ,  Naoyuki Nishino ,  Yutaka Yoshida ,  Keiji Tsubota ,  Masato Hattori ,  Naoto Iwakiri

    IPC分类号： H05G1/56

    CPC分类号： G01T1/243 ,  G01T1/24 ,  G01T1/246

    摘要： An electronic cassette in a radiographic image capturing system includes a radiation detector for detecting radiation applied from an image capturing apparatus and transmitted through a patient, a contactless power receiver for receiving electric power supplied contactlessly from a power feeder and supplying the electric power to a battery, an A/D converter for performing an A/D conversion to convert analog radiographic image information generated based on the radiation applied to the radiation detector into digital radiographic image information, an end-of-A/D-conversion determining unit for determining whether the A/D conversion is finished or not, and a charging controller for stopping the power feeder from supplying electric power contactlessly after the image capturing apparatus has started capturing images until the end-of-A/D-conversion determining unit judges that the A/D conversion is finished.

    摘要翻译： 放射线照相图像拍摄系统中的电子盒包括：用于检测从摄像装置施加的辐射并通过患者透射的放射线检测器;非接触式电力接收器，用于接收从供电器非接触地供电并将电力供应给电池 ，用于执行A / D转换以将基于施加到所述辐射检测器的辐射生成的模拟放射线图像信息转换成数字放射线照相图像信息的A / D转换器，用于确定是否 A / D转换完成，以及充电控制器，用于在图像拍摄设备开始拍摄图像之后，使供电器停止供电，直到A / D转换判定单元判断为A / D转换完成。

    APPARATUS AND METHOD FOR DISTINGUISHING ENERGY BANDS OF PHOTONS IN MULTI-ENERGY RADIATION
    6.
    发明申请
    APPARATUS AND METHOD FOR DISTINGUISHING ENERGY BANDS OF PHOTONS IN MULTI-ENERGY RADIATION 有权
    用于评估多能量辐射中光子能量的装置和方法

    公开(公告)号：US20130041628A1

    公开(公告)日：2013-02-14

    申请号：US13561503

    申请日：2012-07-30

    申请人： Sang-wook Han ,  Hyun-sik Kim ,  Jun-hyeok Yang ,  Gyu-hyeong Cho ,  Young-hun Sung

    发明人： Sang-wook Han ,  Hyun-sik Kim ,  Jun-hyeok Yang ,  Gyu-hyeong Cho ,  Young-hun Sung

    IPC分类号： G06F15/00

    CPC分类号： G01T1/17 ,  A61B6/032 ,  A61B6/4241 ,  G01T1/16 ,  G01T1/246 ,  G01T1/247 ,  G01T1/2928 ,  G01T1/36

    摘要： An apparatus for distinguishing an energy band of a photon in a readout circuit that counts photons in multi-energy radiation incident onto a sensor for each energy band includes an integrator configured to accumulate an electric signal received from the sensor that has undergone photoelectric conversion from the photon; a comparator configured to compare an accumulated electric signal received from the integrator with one of a plurality of threshold values; and a signal processor configured to instruct sequential switching from one of the plurality of threshold values to another one of the plurality of threshold values according to a result of a comparison received from the comparator; and output a digital signal that distinguishes an energy band of the photon based on results received from the comparator of sequential comparisons of the accumulated electric signal with the plurality of threshold values.

    摘要翻译： 用于区分在每个能带上入射到传感器上的多能量辐射中计数光子的读出电路中的光子能带的装置包括积分器，其被配置为累积从已经经历光电转换的传感器接收的电信号 光子 比较器，用于将从积分器接收的累积电信号与多个阈值中的一个进行比较; 以及信号处理器，被配置为根据从所述比较器接收的比较结果，指示从所述多个阈值中的一个到所述多个阈值中的一个阈值的顺序切换; 并输出基于从累积电信号与多个阈值的顺序比较的比较器接收的结果来区分光子的能带的数字信号。

    APPARATUS AND METHOD FOR DETECTING RADIATION
    7.
    发明申请
    APPARATUS AND METHOD FOR DETECTING RADIATION 失效
    检测辐射的装置和方法

    公开(公告)号：US20120080603A1

    公开(公告)日：2012-04-05

    申请号：US12957807

    申请日：2010-12-01

    申请人： Jung-Seok KIM ,  Byung-Hun Ko ,  Beom-Jin Moon ,  Jung-Kee Yoon

    发明人： Jung-Seok KIM ,  Byung-Hun Ko ,  Beom-Jin Moon ,  Jung-Kee Yoon

    IPC分类号： H01L27/146 ,  G01T1/24

    CPC分类号： H01L27/14676 ,  G01T1/246 ,  H01L27/14634 ,  H01L27/14692

    摘要： An apparatus and method for detecting radiation, which can improve the resolution of a radiation image and contribute to the simplification of the manufacture of the apparatus, are provided. The apparatus includes an upper electrode layer transmitting radiation; a first photoconductive layer becoming photoconductive upon exposure to the radiation and thus generating charges therein; a charge trapping layer trapping therein the charges generated in the first photoconductive layer and serving as a floating electrode; a second photoconductive layer becoming photoconductive upon exposure to rear light for reading out a radiation image; a lower transparent electrode layer charged with the charges trapped in the charge trapping layer; a rear light emission unit applying the rear light to the second photoconductive layer via the lower transparent electrode layer in units of pixels; and a data processing unit reading out a signal corresponding to the charges trapped in the charge trapping layer from the lower transparent electrode layer and generating a radiation image based on the read-out signal.

    摘要翻译： 提供了一种用于检测辐射的装置和方法，其可以提高辐射图像的分辨率并有助于简化制造装置。 该装置包括发射辐射的上电极层; 第一光电导层在暴露于辐射时变得光导，从而在其中产生电荷; 电荷俘获层，其中俘获在第一光电导层中产生的电荷并用作浮置电极; 第二光电导层在暴露于背光时变为感光以读出放射线图像; 充电陷在电荷俘获层中的电荷的下部透明电极层; 后发光单元，以像素为单位经由下透明电极层将后光施加到第二光电导层; 以及数据处理单元，从所述下部透明电极层读出与所述电荷俘获层中捕获的电荷相对应的信号，并且基于所述读出信号生成放射线图像。

    X-RAY DETECTOR USING LIQUID CRYSTAL DEVICE
    8.
    发明申请
    X-RAY DETECTOR USING LIQUID CRYSTAL DEVICE 审中-公开
    使用液晶装置的X射线探测器

    公开(公告)号：US20110057278A1

    公开(公告)日：2011-03-10

    申请号：US12609509

    申请日：2009-10-30

    申请人： Sang Hwa KIM ,  Bae Kyun Kim ,  Kwang Seok Choi ,  Sang Su Hong ,  Chang Yun Lee ,  Kiy Eo Kim

    发明人： Sang Hwa KIM ,  Bae Kyun Kim ,  Kwang Seok Choi ,  Sang Su Hong ,  Chang Yun Lee ,  Kiy Eo Kim

    IPC分类号： H01L31/08

    CPC分类号： G01T1/246

    摘要： An X-ray detector includes a first substrate having a bottom surface on which a first electrode is formed. A second substrate has a top surface on which a second electrode and a polyimide layer are sequentially formed. A photoconductive layer is formed on a bottom surface of the first electrode and generates electron-hole pairs. A reflective layer is formed on a bottom surface of the photoconductive layer. A liquid crystal polymer layer is formed on a bottom surface of the reflective layer, and peaks and valleys are alternately formed on a bottom surface of the liquid crystal polymer layer. A liquid crystal layer is formed between the liquid crystal polymer layer and the polyimide layer, and liquid crystal molecules are aligned in a direction in which the peaks and valleys on the bottom surface are arranged.

    摘要翻译： X射线检测器包括具有底表面的第一基底，其上形成有第一电极。 第二基板具有依次形成有第二电极和聚酰亚胺层的顶面。 在第一电极的底表面上形成光电导层并产生电子 - 空穴对。 反射层形成在光电导层的底表面上。 液晶聚合物层形成在反射层的底表面上，在液晶聚合物层的底表面上交替形成峰谷。 在液晶聚合物层和聚酰亚胺层之间形成液晶层，并且液晶分子沿着排列在底表面上的峰谷的方向排列。

    Radiation detector
    9.
    发明申请
    Radiation detector 有权
    辐射检测器

    公开(公告)号：US20090294705A1

    公开(公告)日：2009-12-03

    申请号：US12453861

    申请日：2009-05-26

    申请人： Kaku Irisawa ,  Kazuhiro Noda ,  Kenichi Hayashi ,  Katsutoshi Yamane ,  Kiyoteru Miyake

    发明人： Kaku Irisawa ,  Kazuhiro Noda ,  Kenichi Hayashi ,  Katsutoshi Yamane ,  Kiyoteru Miyake

    IPC分类号： G01N23/04

    CPC分类号： G01T1/244 ,  G01T1/246

    摘要： A radiation detector is constituted by: a recording photoconductive layer; and electrodes provided on both sides of the photoconductive layer. Electric charges, which are generated within the recording photoconductive layer when radiation is irradiated thereon while a predetermined biasing voltage is being applied between the electrodes, are read out as electric signals. The recording photoconductive layer is formed by amorphous selenium that contains alkali metal elements within a range from 0.0007 atomic ppm to 0.0035 atomic ppm.

    摘要翻译： 辐射检测器由以下部分构成：记录光电导层; 以及设置在光电导层两侧的电极。 作为电信号，读出当在电极之间施加预定的偏置电压时在其上照射辐射时在记录光电导层内产生的电荷。 记录光电导层由含有0.0007原子ppm至0.0035原子ppm范围内的碱金属元素的非晶硒形成。

    RADIATION IMAGE DETECTOR
    10.
    发明申请
    RADIATION IMAGE DETECTOR 有权
    辐射图像检测器

    公开(公告)号：US20090084965A1

    公开(公告)日：2009-04-02

    申请号：US12240299

    申请日：2008-09-29

    申请人： Kaku IRISAWA ,  Fumito Nariyuki ,  Kenichi Hayashi

    发明人： Kaku IRISAWA ,  Fumito Nariyuki ,  Kenichi Hayashi

    IPC分类号： G01T1/24

    CPC分类号： G01T1/244 ,  G01T1/246

    摘要： A voltage applying electrode, to which a voltage is to be applied, a semiconductor layer, which is capable of generating electric charges when radiation is irradiated to the semiconductor layer, and an electrode for detecting an electric signal in accordance with a radiation dose are overlaid one upon another. A hole injection blocking layer is located between the voltage applying electrode and the semiconductor layer. The hole injection blocking layer contains an alloy of SbxS100-x, where x represents a number satisfying the condition of 41≦x≦60.

    摘要翻译： 施加电压的电压施加电极，当辐射照射到半导体层时能够产生电荷的半导体层和用于根据辐射剂量检测电信号的电极被覆盖 一个接一个 空穴注入阻挡层位于电压施加电极和半导体层之间。 空穴注入阻挡层含有SbxS100-x的合金，其中x表示满足条件41 <= x <= 60的数。