公开(公告)号：US20150090889A1

公开(公告)日：2015-04-02

申请号：US14496081

申请日：2014-09-25

申请人： Kabushiki Kaisha Toshiba

发明人： Hidehiko KURODA ,  Kunihiko NAKAYAMA ,  Kei TAKAKURA ,  Mikio IZUMI ,  Naoto KUME

IPC分类号： G01T1/20 ,  G01T1/205

CPC分类号： G01T1/2002 ,  G01J1/42 ,  G01J1/429 ,  G01J2001/444 ,  G01T1/169 ,  G01T1/178 ,  G01T1/2006 ,  G01T1/2018 ,  G01T1/205

摘要： A radiation detection apparatus includes a selecting unit that allows a light having a light emission wavelength and a polarization direction to pass thorough the selecting unit, an optical system that forms an image of the light, a photon detecting unit that observes the image formed by the optical system, and detects the photon in whole range of the image, a counting unit that calculates the number of the alpha ray based on a result of counting the photon derived from the light emission of gas excited by the alpha ray, and is possible to sufficiently eliminate background light (noise light) even if background light is strong, and therefore observe weak light emission.

摘要翻译： 辐射检测装置包括：选择单元，其允许具有发光波长和偏振方向的光通过选择单元;形成光的图像的光学系统;光子检测单元，其观察由所述选择单元形成的图像; 光学系统，并且检测图像的整个范围内的光子;计数单元，其基于从由α射线激发的气体的光发射得到的光子计数的结果来计算α射线的数量，并且可以 即使背景光强，也能充分消除背景光（噪声光），因此观察到弱光。

公开(公告)号：US20150323681A1

公开(公告)日：2015-11-12

申请号：US14652697

申请日：2014-01-30

申请人： KABUSHIKI KAISHA TOSHIBA

发明人： Naoto KUME ,  Hidehiko KURODA ,  Kunihiko NAKAYAMA ,  Kei TAKAKURA

IPC分类号： G01T1/17 ,  G01T1/16 ,  G01T1/20

CPC分类号： G01T1/17 ,  G01T1/1603 ,  G01T1/169 ,  G01T1/178 ,  G01T1/2018 ,  G01T1/205

摘要： A light detecting unit of an alpha ray observation device observes an alpha ray by measuring generated light that is generated by the alpha ray produced in a region of a to-be-measured object. The light detecting unit has a travel direction changing unit that changes the direction of travel of generated light, a light detector that detects direction-changed light, which is the generated light after the direction of travel is changed, and a shielding member that shields the light detector from radiation and has a portion that is provided on the line from the to-be-measured object to the light detector. The shielding member may also surround the perimeter of the light detector and have an opening to allow generated light to reach the travel direction changing unit.

摘要翻译： α射线观察装置的光检测单元通过测量由待测物体的区域中产生的α射线产生的产生的光来观察α射线。 光检测单元具有改变生成光的行进方向的行进方向改变单元，检测作为行进方向之后的发光的方向变化的光的光检测器，以及遮蔽构件 光检测器，其具有设置在从待测对象到光检测器的线上的部分。 屏蔽构件也可以围绕光检测器的周边，并且具有允许产生的光到达行进方向改变单元的开口。

公开(公告)号：US20150369932A1

公开(公告)日：2015-12-24

申请号：US14765915

申请日：2014-02-12

申请人： KABUSHIKI KAISHA TOSHIBA

发明人： Naoto KUME ,  Hidehiko KURODA ,  Kunihiko NAKAYAMA ,  Kei TAKAKURA

IPC分类号： G01T1/24

CPC分类号： G01T1/24 ,  G01T1/178

摘要： An alpha ray observation apparatus, according to an embodiment, that observes alpha rays by detecting alpha ray caused light generated from an alpha ray source in a to-be-observed object, including: an alpha ray caused light wavelength selecting unit that can select light including wavelength of the alpha ray caused light; an alpha ray caused light detecting unit that measures an amount of alpha ray caused light; a short-side wavelength selecting unit that can select light of a short-side wavelength that is shorter than the wavelength of the alpha ray caused light; a short-side wavelength light detecting unit; a long-side wavelength selecting unit that can select light of a long-side wavelength that longer than the wavelength of the alpha ray caused light; a long-side wavelength light detecting unit; and a correction unit that calculates a corrected light amount by correcting the amount of the alpha ray caused light.

摘要翻译： 根据实施例的α射线观察装置，其通过检测α射线来观察α射线，导致在被观察对象中从α射线源产生的光，包括：可以选择光的α射线引起的光波长选择单元 包括α射线的波长引起光线; α射线引起的光检测单元，其测量α射线引起的光量; 能够选择比α射线的波长短的短边波长的光引起光的短边波长选择单元; 短边波长光检测单元; 长边波长选择单元，其能够选择比α射线的波长长的长边波长的光引起光; 长边波长光检测单元; 以及校正单元，其通过校正所述α射线引起的光量来计算校正光量。