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    X-RAY IMAGING APPARATUS
    11.
    发明申请
    X-RAY IMAGING APPARATUS 审中-公开
    X射线成像装置

    公开(公告)号：US20150279497A1

    公开(公告)日：2015-10-01

    申请号：US14725456

    申请日：2015-05-29

    Applicant: CANON KABUSHIKI KAISHA

    Inventor： Toru Den ,  Kimiaki Yamaguchi ,  Chidane Ouchi

    IPC: G21K1/06 ,  G01N23/20

    CPC classification number: G21K1/067 ,  A61B6/484 ,  G01N23/046 ,  G01N23/20075 ,  G01N2223/419 ,  G21K2207/005

    Abstract: An X-ray imaging apparatus comprises a grating configured to form an interference pattern by diffracting X-rays from an X-ray source, a amplitude grating configured to partly shield X-rays forming the interference pattern, and an X-ray detector configured to detect an intensity distribution of X-rays from the amplitude grating. The amplitude grating is comprised of a central area and a peripheral area and the peripheral area shows an X-ray transmittance higher than the central area relative to X-rays perpendicularly entering the amplitude grating.

    Abstract translation: 一种X射线摄像装置，其特征在于，包括：被配置为通过衍射来自X射线源的X射线形成干涉图案的光栅;被配置为部分地屏蔽形成所述干涉图案的X射线的振幅光栅;以及X射线检测器， 检测来自幅度光栅的X射线的强度分布。 振幅光栅由中心区域和外围区域组成，周边区域相对于垂直进入振幅光栅的X射线，显示高于中心区域的X射线透射率。

    Analysis method, radiation imaging apparatus using analysis method, and analysis program for executing analysis method
    14.
    发明授权
    Analysis method, radiation imaging apparatus using analysis method, and analysis program for executing analysis method 失效
    分析方法，辐射成像仪使用分析方法，分析程序执行分析方法

    公开(公告)号：US08681934B2

    公开(公告)日：2014-03-25

    申请号：US13943932

    申请日：2013-07-17

    Applicant: Canon Kabushiki Kaisha

    Inventor： Kentaro Nagai ,  Toru Den

    IPC: G03H5/00

    CPC classification number: G06T7/0002 ,  A61B6/4291 ,  A61B6/484 ,  G01J9/02 ,  G01N23/04 ,  G01N23/20075 ,  G01N2223/401 ,  G21K1/06 ,  G21K2201/06 ,  G21K2201/067

    Abstract: An analysis method for use in a radiation imaging apparatus employing intensity information of interference fringes of radiation rays that have passed through a detected object includes the steps of generating first phase information of the detected object wrapped into a range of 2π from the intensity information of the interference fringes; generating information on an absorption intensity gradient of the detected object from the intensity information of the interference fringes; generating a weighting function on the basis of an absolute value of a gradient in the information on the absorption intensity gradient; and generating second phase information by unwrapping the first phase information by using the weighting function.

    Abstract translation: 一种在使用已经通过检测对象的辐射线的干涉条纹的强度信息的放射线成像装置中的分析方法包括以下步骤：产生被检测物体的第一相位信息，包含在2＆amp; 从干涉条纹的强度信息; 根据干涉条纹的强度信息生成关于被检测物体的吸收强度梯度的信息; 基于关于吸收强度梯度的信息中的梯度的绝对值生成加权函数; 以及通过使用所述加权函数展开所述第一相位信息来产生第二相位信息。

    SCINTILLATOR HAVING PHASE SEPARATION STRUCTURE AND RADIATION DETECTOR USING THE SAME
    15.
    发明申请
    SCINTILLATOR HAVING PHASE SEPARATION STRUCTURE AND RADIATION DETECTOR USING THE SAME 有权
    具有相分离结构和辐射检测器的扫描仪

    公开(公告)号：US20140034839A1

    公开(公告)日：2014-02-06

    申请号：US14048637

    申请日：2013-10-08

    Applicant: CANON KABUSHIKI KAISHA

    Inventor： Ryoko Horie ,  Nobuhiro Yasui ,  Yoshihiro Ohashi ,  Toru Den

    IPC: G01T1/20

    CPC classification number: G01T1/2006 ,  G01T1/202

    Abstract: Provided is a scintillator used for detecting radiation in an X-ray CT scanner or the like, the scintillator having a unidirectional phase separation structure having an optical waveguide function, which eliminates the need of formation of partition walls for preventing crosstalks. The scintillator has the phase separation structure including: a first crystal phase including multiple columnar crystals having unidirectionality; and a second crystal phase filling space on the side of the first crystal phase. The second crystal phase includes a material represented by Cs3Cu2[XaY1-a]5, where X and Y are elements which are different from each other and which are selected from the group consisting of I, Br, and Cl, and 0≦a≦1 is satisfied.

    Abstract translation: 提供了用于检测X射线CT扫描仪等中的辐射的闪烁体，该闪烁体具有具有光波导功能的单向相分离结构，其消除了形成用于防止串扰的分隔壁的需要。 闪烁体具有相分离结构，包括：包含具有单向的多个柱状晶体的第一晶相; 以及在第一结晶相侧的第二晶相填充空间。 第二结晶相包括由Cs 3 Cu 2 [X y Y 1-a] 5表示的材料，其中X和Y是彼此不同的并且选自I，Br和Cl的元素，并且0 @ a @ 1满足。

    COMPOUND, SCINTILLATOR, AND RADIATION DETECTOR
    16.
    发明申请
    COMPOUND, SCINTILLATOR, AND RADIATION DETECTOR 有权
    化合物，扫描仪和辐射检测器

    公开(公告)号：US20130327945A1

    公开(公告)日：2013-12-12

    申请号：US13909454

    申请日：2013-06-04

    Applicant: CANON KABUSHIKI KAISHA

    Inventor： Yoshinori Shibutani ,  Ryoko Ueyama ,  Nobuhiro Yasui ,  Toru Den

    IPC: C09K11/61 ,  G01T1/20

    CPC classification number: G01T3/06 ,  C09K11/616 ,  G01T1/2006 ,  G21K4/00 ,  Y10T29/49826 ,  Y10T83/04

    Abstract: There is provided a compound represented by the general formula Cs3Cu2[I1-xClx]5, wherein x is 0.71 or more and 0.79 or less. Also, there is provided a method for producing a compound, comprising mixing cesium iodide, cesium chloride, and copper chloride together in such a manner that the molar ratio of cesium to copper to iodine to chlorine is 3:2:5(1-x):5x (wherein 0.71≦x≦0.79), melting the resulting mixture, and solidifying the resulting molten material to give a compound.

    Abstract translation: 提供由通式Cs 3 Cu 2 [I 1-x Cl x] 5表示的化合物，其中x为0.71以上且0.79以下。 此外，提供了一种制备化合物的方法，其包括将碘化铯，氯化铯和氯化铜一起以使得铯与铜与碘与氯的摩尔比为3:2:5（1-x ）：5x（其中0.71 @ x @ 0.79），熔化所得混合物，并使所得熔融材料固化，得到化合物。

    ANALYSIS METHOD, RADIATION IMAGING APPARATUS USING ANALYSIS METHOD, AND ANALYSIS PROGRAM FOR EXECUTING ANALYSIS METHOD
    17.
    发明申请
    ANALYSIS METHOD, RADIATION IMAGING APPARATUS USING ANALYSIS METHOD, AND ANALYSIS PROGRAM FOR EXECUTING ANALYSIS METHOD 失效
    分析方法，使用分析方法的放射成像装置和执行分析方法的分析程序

    公开(公告)号：US20130301795A1

    公开(公告)日：2013-11-14

    申请号：US13943932

    申请日：2013-07-17

    Applicant: CANON KABUSHIKI KAISHA

    Inventor： Kentaro Nagai ,  Toru Den

    IPC: G06T7/00 ,  G01N23/20

    CPC classification number: G06T7/0002 ,  A61B6/4291 ,  A61B6/484 ,  G01J9/02 ,  G01N23/04 ,  G01N23/20075 ,  G01N2223/401 ,  G21K1/06 ,  G21K2201/06 ,  G21K2201/067

    Abstract: An analysis method for use in a radiation imaging apparatus employing intensity information of interference fringes of radiation rays that have passed through a detected object includes the steps of generating first phase information of the detected object wrapped into a range of 2π from the intensity information of the interference fringes; generating information on an absorption intensity gradient of the detected object from the intensity information of the interference fringes; generating a weighting function on the basis of an absolute value of a gradient in the information on the absorption intensity gradient; and generating second phase information by unwrapping the first phase information by using the weighting function.

    Abstract translation: 一种用于使用已经通过检测对象的辐射线的干涉条纹的强度信息的放射线成像设备的分析方法包括以下步骤：从被检测到的物体的强度信息生成包含在2pi范围内的检测对象的第一相位信息 干涉条纹; 根据干涉条纹的强度信息生成关于被检测物体的吸收强度梯度的信息; 基于关于吸收强度梯度的信息中的梯度的绝对值生成加权函数; 以及通过使用所述加权函数展开所述第一相位信息来产生第二相位信息。

    X-ray imaging apparatus, X-ray imaging method, and X-ray imaging program
    18.
    发明授权
    X-ray imaging apparatus, X-ray imaging method, and X-ray imaging program 有权
    X射线成像装置，X射线成像方法和X射线成像程序

    公开(公告)号：US08537966B2

    公开(公告)日：2013-09-17

    申请号：US13682445

    申请日：2012-11-20

    Applicant: Canon Kabushiki Kaisha

    Inventor： Chidane Ouchi ,  Kentaro Nagai ,  Toru Den ,  Hidenosuke Itoh

    IPC: G03H5/00

    CPC classification number: G06T7/0002 ,  A61B6/4291 ,  A61B6/484 ,  G01J9/02 ,  G01N23/04 ,  G01N23/20075 ,  G01N2223/401 ,  G21K1/06 ,  G21K2201/06 ,  G21K2201/067

    Abstract: An X-ray imaging apparatus includes a phase grating, an absorption grating, a detector, and an arithmetic unit. The arithmetic unit executes a Fourier transform step of performing Fourier transform for an intensity distribution of a Moiré acquired by the detector, and acquiring a spatial frequency spectrum. Also, the arithmetic unit executes a phase retrieval step of separating a spectrum corresponding to a carrier frequency from a spatial frequency spectrum acquired in the Fourier transform step, performing inverse Fourier transform for the separated spectrum, and acquiring a differential phase image.

    Abstract translation: X射线成像装置包括相位光栅，吸收光栅，检测器和运算单元。 算术单元执行对由检测器获取的莫尔的强度分布执行傅里叶变换并获取空间频谱的傅里叶变换步骤。 此外，运算单元执行相位检索步骤，从傅里叶变换步骤中获取的空间频谱中分离出与载波频率对应的频谱，对分离的频谱进行傅里叶逆变换，获取差分相位图像。

    SCINTILLATOR AND RADIATION DETECTOR
    19.
    发明申请
    SCINTILLATOR AND RADIATION DETECTOR 有权

    公开(公告)号：US20170205514A1

    公开(公告)日：2017-07-20

    申请号：US14193423

    申请日：2014-02-28

    Applicant: CANON KABUSHIKI KAISHA

    Inventor： Nobuhiro Yasui ,  Yoshinori Shibutani ,  Yoshihiro Ohashi ,  Toru Den

    IPC: G01T1/20 ,  G01T1/202

    CPC classification number: G01T1/2002 ,  G01T1/202

    Abstract: In a related-art composite scintillator in which pores in a porous scintillator are filled with an absorbing member or the like, as the ratio between the structural period of the composite and the thickness in an optical waveguide direction becomes smaller, almost all light is absorbed, and, in some cases, it is difficult to obtain a sufficient light amount for forming an adequate image. Provided is a scintillator including multiple first phases having directionality in a direction connecting two surfaces thereof which are not located on a same surface and a second phase positioned around the first phases, in which each of the multiple first phases is in the shape of a column, and an absorbing portion is provided in part of one of the two kinds of phases, which has a lower refractive index.

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