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11. 发明授权

US08253107B2 Neutron image detecting method and neutron image detector using its method 有权
标题翻译：中子图像检测方法和中子图像检测器采用其方法
公开(公告)号：US08253107B2
公开(公告)日：2012-08-28
申请号：US13035248
申请日：2011-02-25
申请人： Tatsuya Nakamura , Masaki Katagiri , Masumi Ebine , Atsushi Birumachi , Yutaka Yoribayashi
发明人： Tatsuya Nakamura , Masaki Katagiri , Masumi Ebine , Atsushi Birumachi , Yutaka Yoribayashi
IPC分类号： G01T1/10
CPC分类号： G01T3/06
摘要： A neutron image detection method is disclosed, which collects a fluorescent light generated by a neutron incident at a designated position interval in one-dimensional geometry and determines an incident position of the neutron by detecting the collected fluorescent light, in which the fluorescent light is detected by a photon counting method; a pulse signal generated by an individual output photon is extracted on the basis of a clock signal generated with the same time interval as the time width of the pulse signal generated by a single photon; a count-value distribution is obtained in terms of incident position as variable determined by a single neutron incident by counting the pulse signal output; and a neutron incident position is determined by calculating a median point on the basis of the obtained count-value distribution.
摘要翻译：公开了一种中子图像检测方法，其收集由以一维几何形状指定的位置间隔入射的中子产生的荧光，并通过检测收集到的荧光而检测中子的入射位置，其中检测到荧光通过光子计数法; 基于由与单个光子产生的脉冲信号的时间宽度相同的时间间隔生成的时钟信号，提取由各个输出光子产生的脉冲信号; 通过计数脉冲信号输出，通过单个中子入射确定的入射位置作为变量获得计数值分布; 并且通过基于获得的计数值分布计算中值来确定中子入射位置。

12. 发明申请

US20070278413A1 RADIATION OR NEUTRON DETECTOR USING FIBER OPTICS 有权
标题翻译：使用光纤的辐射或中子探测器
公开(公告)号：US20070278413A1
公开(公告)日：2007-12-06
申请号：US11640238
申请日：2006-12-18
申请人： Masaki Katagiri , Masahito Matsubayashi
发明人： Masaki Katagiri , Masahito Matsubayashi
IPC分类号： G01T1/20
CPC分类号： G01T5/08
摘要： A radiation or neutron detector wherein lateral side light detecting optical fibers prepared from clear optical fibers that are scraped on a lateral side to permit side incidence of fluorescence are used to detect the fluorescence from a phosphor or a scintillator such that the background to gamma-rays is reduced. If desired, the optical fibers may be bent at 90 degrees and guided to a photomultiplier tube in order to reduce the size of the detector. Fabrication and maintenance of the detector can be facilitated by adopting such a design that a detecting block comprising a detection medium and lateral side light detecting optical fibers is separated from a readout block comprising clear optical fibers.
摘要翻译：使用辐射或中子检测器，其中使用由在侧面刮擦以允许侧向荧光的透明光纤制备的侧面光检测光纤用于检测来自荧光体或闪烁体的荧光，使得伽马射线的背景降低了。如果需要，光纤可以以90度弯曲并被引导到光电倍增管，以便减小检测器的尺寸。通过采用这样的设计，可以促进检测器的制造和维护，使得包括检测介质和侧面光检测光纤的检测块与包括透明光纤的读出块分离。

13. 发明授权

US07002158B2 Solid-state radiation detector using a single crystal of compound semiconductor InSb 失效
标题翻译：使用化合物半导体InSb的单晶的固态放射线检测器
公开(公告)号：US07002158B2
公开(公告)日：2006-02-21
申请号：US10764574
申请日：2004-01-27
申请人： Masaki Katagiri , Tatsuya Nakamura , Ikuo Kanno , Osamu Sugiura
发明人： Masaki Katagiri , Tatsuya Nakamura , Ikuo Kanno , Osamu Sugiura
IPC分类号： G01T1/24 , H01L27/14 , H01L31/00 , H01L31/06
CPC分类号： H01L31/118 , H01L31/0304 , H01L31/03042 , H01L31/1185 , Y02E10/544
摘要： A high-purity InSb single crystal not artificially doped with impurities is used as a radiation detecting medium. In order to obtain diode characteristics, a Au.Pd alloy is used to form a surface barrier layer. At 4.2 K, the device resistance of the thus fabricated solid-state radiation detector was as large as 1.4 kΩ and the rise time of output signals from a charge-sensitive preamplifier was as short as 0.4 μs, indicating reduced trapping of electrons or positive holes. The detector was also capable of measuring α-ray spectra over the temperature range from 2 K to 50 K.
摘要翻译：使用未人工掺杂杂质的高纯度InSb单晶作为放射线检测介质。为了获得二极管特性，使用Au.Pd合金来形成表面阻挡层。在4.2K时，如此制造的固态放射线检测器的器件电阻高达1.4kOmega，并且来自电荷敏感性前置放大器的输出信号的上升时间短至0.4μs，表明电子或空穴的捕获减少。检测器还能够在2 K至50 K的温度范围内测量α射线谱。

14. 发明申请

US20050236577A1 Two-dimensional radiation and neutron image detectors 审中-公开
标题翻译：二维辐射和中子图像检测器
公开(公告)号：US20050236577A1
公开(公告)日：2005-10-27
申请号：US11169834
申请日：2005-06-30
申请人： Masaki Katagiri
发明人： Masaki Katagiri
IPC分类号： G01T1/20 , G01T1/00 , G01T1/164 , G01T1/202 , G01T1/203 , G01T1/204 , G01T3/06
CPC分类号： G01T1/1644 , G01T3/06
摘要： A 6Li doped glass scintillator sheet with grooves cut at given spacings in horizontal and vertical directions. Bundles of wavelength shifting fibers placed in the vertical grooves and fluorescence reflector buried in the horizontal grooves make a group of detection pixels. Neutron detecting media are provided on the top surface and bundles of wavelength shifting fibers are arranged horizontally on the bottom surface of the scintillator. Fluorescence generated by stimulation with the neutrons entering the detection pixels and with the neutrons incident on the neutron detecting media are detected by the wavelength shifting fibers. The detected fluorescence is converted to electric signals with a multi-channel photomultiplier tube, with pulse signals for simultaneous counting generated from a retriggerable, constant time-duration pulse generator and recorded as time-series data by parallel interfaces. The recorded data are analyzed by the simultaneous counting method to produce a two-dimensional neutron image.
摘要翻译：具有在水平和垂直方向上以给定间隔切割的槽的Li掺杂的玻璃闪烁体片。放置在垂直槽中的波长移动光纤束和埋在水平凹槽中的荧光反射镜组成一组检测像素。中子检测介质设置在顶表面上，并且波长移动光纤的束水平地布置在闪烁体的底表面上。通过用进入检测像素的中子和入射在中子检测介质上的中子进行刺激而产生的荧光由波长移动光纤检测。检测到的荧光通过多通道光电倍增管转换为电信号，脉冲信号用于从可再触发，恒定的持续时间脉冲发生器产生的同时计数，并通过并行接口记录为时间序列数据。记录的数据通过同时计数方法分析以产生二维中子图像。

15. 发明授权

US5552609A Electric-cooled type semiconductor radioactive ray detector 失效
标题翻译：电冷式半导体放射线检测仪
公开(公告)号：US5552609A
公开(公告)日：1996-09-03
申请号：US302405
申请日：1994-09-08
申请人： Masaki Katagiri
发明人： Masaki Katagiri
IPC分类号： F25B9/00 , F25B9/14 , G01T1/24 , G01T7/00 , G12B15/02
CPC分类号： G01T1/244
摘要： A miniatured semiconductor radioactive ray detector which has an energy resolution substantially equivalent to that of a conventional semiconductor radioactive ray detector without use of liquid nitrogen and is simple as well as readily portable is disclosed. A Stirling type electric refrigerator is provided for cooling the semiconductor radioactive ray detecting element to the temperature near to a cryogenic temperature of liquid nitrogen. The first stage amplification circuit of the signal preamplifier for amplifying the detected signal relating to the radioactive ray and the signal line as well as circuit wiring are covered and molded by a fibrous material having gas permeability and electric insulation properties so as to reduce microphonics which are likely to be generated due to the electric refrigerator. The compression pump associated with the electric refrigerator is fixed to the support base by way of the vibration absorbing material which absorbs the vibration caused by the compression pump. A circuit for reducing the microphonics is provided at the input stage of the main signal amplifier.
摘要翻译：公开了一种微型半导体放射线检测器，其具有基本上等同于常规半导体放射线检测器的能量分辨率而不使用液氮并且简单且易于携带。提供了一种用于将半导体放射线检测元件冷却至接近液氮的低温温度的斯特林型电冰箱。用于放大与放射线和信号线以及电路布线相关的检测信号的信号前置放大器的第一级放大电路由具有透气性和电绝缘性的纤维材料覆盖和模制，以便减少麦克风可能由于电冰箱而产生。与电冰箱相关联的压缩泵通过吸收由压缩泵引起的振动的振动吸收材料固定在支撑基座上。在主信号放大器的输入级提供用于降低麦克风的电路。

16. 发明授权

US08993973B2 Pixel-type two-dimensional image detector 有权
标题翻译：像素型二维图像检测器
公开(公告)号：US08993973B2
公开(公告)日：2015-03-31
申请号：US13520451
申请日：2011-01-04
申请人： Tatsuya Nakamura , Masaki Katagiri , Noriaki Tsutsui
发明人： Tatsuya Nakamura , Masaki Katagiri , Noriaki Tsutsui
IPC分类号： G01T1/20 , G01T3/06
CPC分类号： G01T3/06 , G01T1/20
摘要： In a lattice-like pixel structure in which reflecting plates that reflect a fluorescent light from a fluorescent material-based neutron detecting sheet are arranged along vertical and horizontal axes at a regular interval, a lattice-like fluorescent light detecting member is provided, in which grooves may be formed at an upper half position of the vertical axis direction reflecting plate and at a center position in a vertical axis interval for accommodating a wavelength shifting fiber for vertical axis detection and at a lower half position of the horizontal axis direction reflecting plate and at a center position in a horizontal axis interval for accommodating a wavelength shifting fiber for horizontal axis detection; and a fluorescent material-based neutron detecting sheet is arranged only at a front surface or at both of a front surface and a back surface of the lattice-like fluorescent light detecting member.
摘要翻译：在其中以荧光材料为基础的中子检测片反射荧光的反射板以规则的间隔沿垂直和水平轴布置的格子状像素结构中，提供格子状荧光检测部件，其中可以在垂直轴方向反射板的上半部位置和垂直轴间隔的中心位置形成槽，用于容纳用于垂直轴检测的波长移动光纤和水平轴方向反射板的下半部位置，在水平轴间隔的中心位置，用于容纳用于水平轴检测的波长移动光纤; 并且基于荧光材料的中子检测片仅布置在格子状荧光检测部件的前表面或前表面和后表面两者处。

17. 发明授权

US07214943B2 Radiation or neutron detector using fiber optics 有权
标题翻译：使用光纤的辐射或中子探测器
公开(公告)号：US07214943B2
公开(公告)日：2007-05-08
申请号：US10927059
申请日：2004-08-27
申请人： Masaki Katagiri , Masahito Matsubayashi
发明人： Masaki Katagiri , Masahito Matsubayashi
IPC分类号： G01T1/20 , G01B6/00 , F21V7/04 , G02B6/44
CPC分类号： G01T5/08
摘要： A radiation or neutron detector wherein lateral side light detecting optical fibers prepared from clear optical fibers that are scraped on a lateral side to permit side incidence of fluorescence are used to detect the fluorescence from a phosphor or a scintillator such that the background to gamma-rays is reduced. If desired, the optical fibers may be bent at 90 degrees and guided to a photomultiplier tube in order to reduce the size of the detector. Fabrication and maintenance of the detector can be facilitated by adopting such a design that a detecting block comprising a detection medium and lateral side light detecting optical fibers is separated from a readout block comprising clear optical fibers.
摘要翻译：使用辐射或中子检测器，其中使用由在侧面刮擦以允许侧向荧光的透明光纤制备的侧面光检测光纤用于检测来自荧光体或闪烁体的荧光，使得伽马射线的背景降低了。如果需要，光纤可以以90度弯曲并被引导到光电倍增管，以便减小检测器的尺寸。通过采用这样的设计，可以促进检测器的制造和维护，使得包括检测介质和侧面光检测光纤的检测块与包括透明光纤的读出块分离。

18. 发明授权

US06998624B2 Apparatus and method for detecting radiation that uses a stimulate phosphor 失效
公开(公告)号：US06998624B2
公开(公告)日：2006-02-14
申请号：US10727979
申请日：2003-12-05
申请人： Masaki Katagiri
发明人： Masaki Katagiri
IPC分类号： G01T1/105 , G01T1/10
CPC分类号： G01T1/20 , G01T1/2012 , G01T1/2014
摘要： Apparatus and method for radiation measurement suitable for use within and outside nuclear reactor or accelerator facilities when there is a need to perform real-time monitoring of radiation intensity over a wide dynamic range at many and broadly distributed sites of measurement. The apparatus and method are based on two principles: constant radiation monitoring and integrating measured radiation with a stimulable phosphor.

19. 发明申请

US20060011854A1 Particle detector and neutron detector that use zinc sulfide phosphors 有权
标题翻译：使用硫化锌荧光粉的粒子探测器和中子探测器
公开(公告)号：US20060011854A1
公开(公告)日：2006-01-19
申请号：US11104655
申请日：2005-04-13
申请人： Masaki Katagiri
发明人： Masaki Katagiri
IPC分类号： G01T3/06
CPC分类号： G01T3/06 , G01T1/202
摘要： The characteristics of the phosphor ZnS:Ag,Cl which has a considerably high fluorescence yield in response to incident particles thus allowing for their easy detection are used as such and combined with the finding that the fluorescence components in the range of shorter wavelengths are short-lived, which led to an improvement of counting characteristics, hence allowing for high-rate measurements of particles. When B370 was used as an optical filter to pick up fluorescence components shorter than 450 nm, the decay time of short-lived fluorescence components could be reduced from 370 ns to 200 ns.
摘要翻译：因此，使用荧光体ZnS：Ag，Cl的响应于入射粒子具有相当高的荧光产率，从而允许其容易检测的特征，并结合发现在较短波长范围内的荧光成分短，生活，这导致计数特性的改善，从而允许高速率的粒子测量。当B370用作光学滤光片以吸收小于450nm的荧光成分时，短寿命荧光成分的衰变时间可以从370ns降低到200ns。

20. 发明申请

US20050205786A1 Methods for detecting photons, radiations or neutrons using superconductors and methods for obtaining two-dimensional images thereof 失效
标题翻译：使用超导体检测光子，辐射或中子的方法和用于获得其二维图像的方法
公开(公告)号：US20050205786A1
公开(公告)日：2005-09-22
申请号：US11013433
申请日：2004-12-17
申请人： Masaki Katagiri , Masataka Ohkubo
发明人： Masaki Katagiri , Masataka Ohkubo
IPC分类号： G01T3/00 , G01T1/16 , G01T1/24 , G01T1/26 , G01T1/29 , G01T3/08 , H01L39/22 , H01L39/00
CPC分类号： G01T1/1606 , G01T3/08 , H01L39/226
摘要： In the improved neutron image detector, MgB2 enriched in a constituent element 10B of wide energy gap is used as a neutron detection plate, which is provided at the center and the four corners with a phonon sensor comprising an insulation layer overlaid with Mg11B2 enriched in 11B of narrow energy gap in order to detect phonons resulting from the generation of α-rays which occurs in the detection plate upon incidence of neutrons, and sensor's signal intensity and signal propagation time are used to detect the incident position of neutrons.
摘要翻译：在改进的中子图像检测器中，富含宽能隙的构成元素10B的富MgB2 2被用作中子检测板，其设置在中心和具有声纳传感器的四个角包括一个覆盖有富集在窄能隙的超导体11的绝缘层，以便检测声子这是由于在中子入射时在检测板中产生的α射线产生的，并且传感器的信号强度和信号传播时间被用于检测中子的入射位置。

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