公开(公告)号：US10371649B2

公开(公告)日：2019-08-06

申请号：US15491161

申请日：2017-04-19

Applicant: CANON KABUSHIKI KAISHA

Inventor： Nobuhiro Yasui ,  Yoshihiro Ohashi ,  Toru Den

IPC: G01N23/04 ,  G01N23/20 ,  G21K1/06

Abstract: A radiation phase change detection method includes: arranging a two-dimensional optical image pickup element, which includes a scintillator, so that, when a period of a self-image generated through a phase grating is defined as D1, and a pixel pitch of the two-dimensional optical image pickup element is defined as D2=kD1, k falls in a range of ½

公开(公告)号：US09885791B2

公开(公告)日：2018-02-06

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 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.

公开(公告)号：US20160154123A1

公开(公告)日：2016-06-02

申请号：US14947728

申请日：2015-11-20

Applicant: CANON KABUSHIKI KAISHA

Inventor： Yoshihiro Ohashi ,  Nobuhiro Yasui ,  Toru Den

IPC: G01T1/202 ,  G01T1/20

CPC classification number: G01T1/2023 ,  G01T1/2008

Abstract: A scintillator crystal includes a plurality of first crystal phases, and a second crystal phase covering respective side surfaces of the first crystal phases. Each of the plurality of first crystal phases is a columnar crystal that includes a perovskite type oxide material containing both Gd and Tb, and emits light by being excited by radiation. The second crystal phase includes alumina. Assuming that a, b, and c respectively represent Gd, Al, and Tb in an element ratio among them that are contained in a total amount of substance of the scintillator crystal, the element ratio is within a range defined by (a, b, c)=(0.174, 0.795, 0.031), (0.207, 0.756, 0.037), (0.213, 0.775, 0.012), and (0.194, 0.795, 0.011) as vertexes in a ternary composition diagram.

Abstract translation: 闪烁体晶体包括多个第一晶相，以及覆盖第一晶相的相应侧表面的第二晶相。 多个第一结晶相中的每一个都是包含含有Gd和Tb的钙钛矿型氧化物材料并通过被辐射激发而发光的柱状晶体。 第二结晶相包括氧化铝。 假设a，b，c分别表示包含在闪烁器晶体的物质总量中的元素比例的Gd，Al，Tb，元素比在（a，b， c）=（0.174,0.795,0.031），（0.207,0.756,0.037），（0.213,0.775,0.012）和（0.194,0.795,0.011）作为三元组成图中的顶点。

公开(公告)号：US20150090886A1

公开(公告)日：2015-04-02

申请号：US14497129

申请日：2014-09-25

Applicant: CANON KABUSHIKI KAISHA

Inventor： Ryoko Ueyama ,  Nobuhiro Yasui ,  Toru Den

IPC: G01T1/20 ,  G01T1/202

CPC classification number: G01T1/20 ,  G01T1/202

Abstract: A scintillator crystal includes a plurality of first crystal phases and a second crystal phase located around the plurality of the first crystal phases, in which each of the plurality of the first crystal phases contains a sulfate, the second crystal phase contains an alkali halide that emits light by irradiation with radiation, and the refractive index of each of the first crystal phases is lower than the refractive index of the second crystal phase.

Abstract translation: 闪烁体晶体包括多个第一晶相和位于多个第一晶相周围的第二晶相，其中多个第一晶相中的每一个含有硫酸根，第二晶相含有发射的碱金属卤化物 并且每个第一结晶相的折射率低于第二结晶相的折射率。

公开(公告)号：US10725186B2

公开(公告)日：2020-07-28

申请号：US16077592

申请日：2017-02-14

Applicant: CANON KABUSHIKI KAISHA

Inventor： Yoshihiro Ohashi ,  Nobuhiro Yasui ,  Toru Den

IPC: G01T1/202 ,  G01T1/20

Abstract: Provided is a scintillator plate, including a plurality of scintillator crystals each including a plurality of first phases and a second phase present on a periphery of each of the plurality of first phases, in which the each of the plurality of first phases and the second phase are different from each other in refractive index with respect to scintillation light, the adjacent scintillator crystals are joined to each other through intermediation of an adhesive layer, and at least a part of an extension line of a center axis of the each of the plurality of first phases of the adjacent scintillator crystals passes through the adhesive layer.

公开(公告)号：US20160170042A1

公开(公告)日：2016-06-16

申请号：US14956984

申请日：2015-12-02

Applicant: CANON KABUSHIKI KAISHA

Inventor： Toru Den ,  Yoshinori Shibutani

IPC: G01T1/20

CPC classification number: G01T1/2002 ,  G01T1/20 ,  G01T1/2008 ,  G01T1/2018

Abstract: A radiation detection apparatus including a scintillator layer configured to convert radiation into light; a light sensor layer including a plurality of light sensors configured to detect light emitted from the scintillator layer; and a reflection layer configured to reflect light emitted from the scintillator layer. The scintillator layer is arranged between the light sensor layer and the reflection layer. The following condition is satisfied: 0.375≦(100−x)/(100−y (%))

Abstract translation: 1.一种放射线检测装置，其特征在于，具备将辐射变换为光的闪烁器层; 光传感器层，包括被配置为检测从闪烁体层发射的光的多个光传感器; 以及反射层，被配置为反射从闪烁体层发射的光。 闪烁体层布置在光传感器层和反射层之间。 满足以下条件：0.375＆nlE;（100-x）/（100-y（％））<3.75，其中设置来自反射层侧的闪烁体层的厚度的25％的平均转换效率 以100为参考，x是从光传感器层侧的闪烁体层的厚度的25％的区域的平均转换效率，y（％）是反射层的反射率。

公开(公告)号：US20140070211A1

公开(公告)日：2014-03-13

申请号：US14079982

申请日：2013-11-14

Applicant: CANON KABUSHIKI KAISHA

Inventor： Tatsuya Iwasaki ,  Toru Den ,  Naho Itagaki

IPC: H01L29/26 ,  H01L29/78

CPC classification number: H01L29/26 ,  H01L29/78 ,  H01L29/7869

Abstract: Disclosed herein is a field-effect transistor comprising a channel comprised of an oxide semiconductor material including In and Zn. The atomic compositional ratio expressed by In/(In+Zn) is not less than 35 atomic % and not more than 55 atomic %. Ga is not included in the oxide semiconductor material or the atomic compositional ratio expressed by Ga/(In+Zn+Ga) is set to be 30 atomic % or lower when Ga is included therein. The transistor has improved S-value and field-effect mobility.

Abstract translation: 本文公开了一种场效应晶体管，其包括由包括In和Zn的氧化物半导体材料构成的沟道。 In /（In + Zn）表示的原子组成比为35原子％以上55原子％以下。 Ga不包括在氧化物半导体材料中，或者当Ga包含Ga时，由Ga /（In + Zn + Ga）表示的原子组成比设定为30原子％以下。 晶体管具有改善的S值和场效应迁移率。

公开(公告)号：US10156640B2

公开(公告)日：2018-12-18

申请号：US14956984

申请日：2015-12-02

Applicant: CANON KABUSHIKI KAISHA

Inventor： Toru Den ,  Yoshinori Shibutani

IPC: G01T1/20

Abstract: A radiation detection apparatus including a scintillator layer configured to convert radiation into light; a light sensor layer including a plurality of light sensors configured to detect light emitted from the scintillator layer; and a reflection layer configured to reflect light emitted from the scintillator layer. The scintillator layer is arranged between the light sensor layer and the reflection layer. The following condition is satisfied: 0.375≤(100−x)/(100−y(%))

公开(公告)号：US09696436B2

公开(公告)日：2017-07-04

申请号：US14947728

申请日：2015-11-20

Applicant: CANON KABUSHIKI KAISHA

Inventor： Yoshihiro Ohashi ,  Nobuhiro Yasui ,  Toru Den

IPC: G01T1/202 ,  G01T1/20

CPC classification number: G01T1/2023 ,  G01T1/2008

Abstract: A scintillator crystal includes a plurality of first crystal phases, and a second crystal phase covering respective side surfaces of the first crystal phases. Each of the plurality of first crystal phases is a columnar crystal that includes a perovskite type oxide material containing both Gd and Tb, and emits light by being excited by radiation. The second crystal phase includes alumina. Assuming that a, b, and c respectively represent Gd, Al, and Tb in an element ratio among them that are contained in a total amount of substance of the scintillator crystal, the element ratio is within a range defined by (a, b, c)=(0.174, 0.795, 0.031), (0.207, 0.756, 0.037), (0.213, 0.775, 0.012), and (0.194, 0.795, 0.011) as vertexes in a ternary composition diagram.

公开(公告)号：US09416022B2

公开(公告)日：2016-08-16

申请号：US14538678

申请日：2014-11-11

Applicant: CANON KABUSHIKI KAISHA

Inventor： Tatsuya Saito ,  Tatsuya Iwasaki ,  Toru Den

IPC: C01G29/00 ,  C23C14/24 ,  C23C14/06

CPC classification number: C01G29/00 ,  C01P2006/40 ,  C01P2006/80 ,  C23C14/0694 ,  C23C14/24 ,  Y10T29/49117

Abstract: A method for preparing a bismuth iodide article includes heat-treating bismuth iodide at a temperature less than the melting point of bismuth iodide in an atmosphere containing iodine.

Abstract translation: 制备碘化铋物品的方法包括在碘含量的气氛中，在低于碘化铋的熔点的温度下对碘化铋进行热处理。