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公开(公告)号：US09658350B2
公开(公告)日：2017-05-23
申请号：US14729715
申请日：2015-06-03
申请人： Ashley C. Stowe , Brenden Wiggins , Arnold Burger
发明人： Ashley C. Stowe , Brenden Wiggins , Arnold Burger
CPC分类号： G01T3/00 , C30B11/12 , C30B29/46 , C30B33/02 , H01L21/67098
摘要： A radiation detection device, including: a support structure; and a chalcopyrite crystal coupled to the support structure; wherein, when the chalcopyrite crystal is exposed to radiation, a visible spectrum of the chalcopyrite crystal changes from an initial color to a modified color. The visible spectrum of the chalcopyrite crystal is changed back from the modified color to the initial color by annealing the chalcopyrite crystal at an elevated temperature below a melting point of the chalcopyrite crystal over time. The chalcopyrite crystal is optionally a 6LiInSe2 crystal. The radiation is comprised of neutrons that decrease the 6Li concentration of the chalcopyrite crystal via a 6Li(n,α) reaction. The initial color is yellow and the modified color is one of orange and red. The annealing temperature is between about 450 degrees C. and about 650 degrees C. and the annealing time is between about 12 hrs and about 36 hrs.
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公开(公告)号：US09638809B2
公开(公告)日：2017-05-02
申请号：US14453768
申请日：2014-08-07
CPC分类号： G01T1/2023 , G01T1/202 , G01T1/208 , G01T3/06
摘要： A combined thermal neutron detector and gamma-ray spectrometer system, including: a first detection medium including a lithium chalcopyrite crystal operable for detecting neutrons; a gamma ray shielding material disposed adjacent to the first detection medium; a second detection medium including one of a doped metal halide, an elpasolite, and a high Z semiconductor scintillator crystal operable for detecting gamma rays; a neutron shielding material disposed adjacent to the second detection medium; and a photodetector coupled to the second detection medium also operable for detecting the gamma rays; wherein the first detection medium and the second detection medium do not overlap in an orthogonal plane to a radiation flux. Optionally, the first detection medium includes a 6LiInSe2 crystal. Optionally, the second detection medium includes a SrI2(Eu) scintillation crystal.
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3.发明授权公开(公告)号：US09612345B2
公开(公告)日：2017-04-04
申请号：US14843150
申请日：2015-09-02
申请人： Ashley C. Stowe , Arnold Burger
发明人： Ashley C. Stowe , Arnold Burger
摘要： A photodetector device, including: a scintillator material operable for receiving incident radiation and emitting photons in response; a photodetector material coupled to the scintillator material operable for receiving the photons emitted by the scintillator material and generating a current in response, wherein the photodetector material includes a chalcopyrite semiconductor crystal; and a circuit coupled to the photodetector material operable for characterizing the incident radiation based on the current generated by the photodetector material. Optionally, the scintillator material includes a gamma scintillator material and the incident radiation received includes gamma rays. Optionally, the photodetector material is further operable for receiving thermal neutrons and generating a current in response. The circuit is further operable for characterizing the thermal neutrons based on the current generated by the photodetector material.
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公开(公告)号：US20140209805A1
公开(公告)日：2014-07-31
申请号：US14230822
申请日：2014-03-31
申请人： Ashley C. Stowe , Arnold Burger , Michael Groza
发明人： Ashley C. Stowe , Arnold Burger , Michael Groza
CPC分类号： G01T1/2023 , C30B29/46 , G01T3/08
摘要： A bulk semiconducting scintillator device, including: a Li-containing semiconductor compound of general composition Li-III-VI2, wherein III is a Group III element and VI is a Group VI element; wherein the Li-containing semiconductor compound is used in one or more of a first mode and a second mode, wherein: in the first mode, the Li-containing semiconductor compound is coupled to an electrical circuit under bias operable for measuring electron-hole pairs in the Li-containing semiconductor compound in the presence of neutrons and the Li-containing semiconductor compound is also coupled to current detection electronics operable for detecting a corresponding current in the Li-containing semiconductor compound; and, in the second mode, the Li-containing semiconductor compound is coupled to a photodetector operable for detecting photons generated in the Li-containing semiconductor compound in the presence of the neutrons.
摘要翻译： 一种散装半导体闪烁体装置，包括：一般组成为Li-III-VI2的含Li半导体化合物，其中III为III族元素，VI为VI族元素; 其中所述含Li半导体化合物用于第一模式和第二模式中的一个或多个，其中：在所述第一模式中，所述含Li半导体化合物耦合到可在电位 - 在存在中子的含Li半导体化合物中，并且含Li的半导体化合物也耦合到电流检测电子器件，其可操作以检测含Li半导体化合物中的对应电流; 并且在第二模式中，含Li半导体化合物耦合到可在中子存在的情况下检测在含Li半导体化合物中产生的光子的光电检测器。
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公开(公告)号：US09632190B2
公开(公告)日：2017-04-25
申请号：US14230372
申请日：2014-03-31
申请人： Ashley C. Stowe , Arnold Burger
发明人： Ashley C. Stowe , Arnold Burger
摘要： A neutron imaging system, including: a plurality of Li-III-VI2 semiconductor crystals arranged in an array, wherein III represents a Group III element and VI represents a Group VI element; and electronics operable for detecting and a charge in each of the plurality of crystals in the presence of neutrons and for imaging the neutrons. Each of the crystals is formed by: melting the Group III element; adding the Li to the melted Group III element at a rate that allows the Li and Group III element to react, thereby providing a single phase Li-III compound; and adding the Group VI element to the single phase Li-III compound and heating. Optionally, each of the crystals is also formed by doping with a Group IV element activator.
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公开(公告)号：US09429662B2
公开(公告)日：2016-08-30
申请号：US14230822
申请日：2014-03-31
申请人： Ashley C. Stowe , Arnold Burger , Michael Groza
发明人： Ashley C. Stowe , Arnold Burger , Michael Groza
CPC分类号： G01T1/2023 , C30B29/46 , G01T3/08
摘要： A bulk semiconducting scintillator device, including: a Li-containing semiconductor compound of general composition Li-III-VI2, wherein III is a Group III element and VI is a Group VI element; wherein the Li-containing semiconductor compound is used in one or more of a first mode and a second mode, wherein: in the first mode, the Li-containing semiconductor compound is coupled to an electrical circuit under bias operable for measuring electron-hole pairs in the Li-containing semiconductor compound in the presence of neutrons and the Li-containing semiconductor compound is also coupled to current detection electronics operable for detecting a corresponding current in the Li-containing semiconductor compound; and, in the second mode, the Li-containing semiconductor compound is coupled to a photodetector operable for detecting photons generated in the Li-containing semiconductor compound in the presence of the neutrons.
摘要翻译： 一种散装半导体闪烁体装置，包括：一般组成为Li-III-VI2的含Li半导体化合物，其中III为III族元素，VI为VI族元素; 其中所述含Li半导体化合物用于第一模式和第二模式中的一个或多个，其中：在所述第一模式中，所述含Li半导体化合物耦合到可在电位 - 在存在中子的含Li半导体化合物中，并且含Li的半导体化合物也耦合到电流检测电子器件，其可操作以检测含Li半导体化合物中的对应电流; 并且在第二模式中，含Li半导体化合物耦合到可在中子存在的情况下检测在含Li半导体化合物中产生的光子的光电检测器。
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公开(公告)号：US07687780B2
公开(公告)日：2010-03-30
申请号：US11248943
申请日：2005-10-11
申请人： Zane W. Bell , Arnold Burger
发明人： Zane W. Bell , Arnold Burger
IPC分类号： G01T1/16
摘要： A semiconductor detector for ionizing electromagnetic radiation, neutrons, and energetic charged particles. The detecting element is comprised of a compound having the composition I-III-VI2 or II-IV-V2 where the “I” component is from column 1A or 1B of the periodic table, the “II” component is from column 2B, the “III” component is from column 3A, the “IV” component is from column 4A, the “V” component is from column 5A, and the “VI” component is from column 6A. The detecting element detects ionizing radiation by generating a signal proportional to the energy deposited in the element, and detects neutrons by virtue of the ionizing radiation emitted by one or more of the constituent materials subsequent to capture. The detector may contain more than one neutron-sensitive component.
摘要翻译： 用于电离电磁辐射，中子和能量带电粒子的半导体检测器。 检测元件由具有组成I-III-VI2或II-IV-V2的化合物组成，其中“I”组分来自元素周期表第1A或1B栏，“II”组分来自第2B栏， “III”组分来自第3A栏，“IV”组分来自第4A栏，“V”组分来自第5A栏，“VI”组分来自第6A栏。 检测元件通过产生与沉积在元件中的能量成比例的信号来检测电离辐射，并且通过捕获之后的一种或多种构成材料发射的电离辐射来检测中子。 检测器可能含有多于一个中子敏感元件。
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公开(公告)号：US20070080301A1
公开(公告)日：2007-04-12
申请号：US11248943
申请日：2005-10-11
申请人： Zane Bell , Arnold Burger
发明人： Zane Bell , Arnold Burger
IPC分类号： G01T1/24
摘要： A semiconductor detector for ionizing electromagnetic radiation, neutrons, and energetic charged particles. The detecting element is comprised of a compound having the composition I-III-VI2 or II-IV-V2 where the “I” component is from column 1A or 1B of the periodic table, the “II” component is from column 2B, the “III” component is from column 3A, the “IV” component is from column 4A, the “V” component is from column 5A, and the “VI” component is from column 6A. The detecting element detects ionizing radiation by generating a signal proportional to the energy deposited in the element, and detects neutrons by virtue of the ionizing radiation emitted by one or more of the constituent materials subsequent to capture. The detector may contain more than one neutron-sensitive component.
摘要翻译： 用于电离电磁辐射，中子和能量带电粒子的半导体检测器。 检测元件由具有组成I-III-VI 2 II或II-IV-V 2的化合物组成，其中“I”组分来自第1A或1B栏 的“II”分量来自列2B，“III”分量来自列3A，“IV”分量来自列4A，“V”分量来自列5A，“VI” 组件来自列6A。 检测元件通过产生与沉积在元件中的能量成比例的信号来检测电离辐射，并且通过捕获之后的一种或多种构成材料发射的电离辐射来检测中子。 检测器可能含有多于一个中子敏感元件。
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公开(公告)号：US06649915B2
公开(公告)日：2003-11-18
申请号：US10325995
申请日：2002-12-19
IPC分类号： B05D306
CPC分类号： H01L31/02966 , G01T1/2002 , H01L31/1032 , H01L31/1832
摘要： A CdZnTe (CZT) crystal provided with a native CdO dielectric coating to reduce surface leakage currents and thereby, improve the resolution of instruments incorporating detectors using CZT crystals is disclosed. A two step process is provided for forming the dielectric coating which includes etching the surface of a CZT crystal with a solution of the conventional bromine/methanol etch treatment, and passivating the CZT crystal surface with a solution of 10 w/o NH4F and 10 w/o H2O2 in water after attaching electrical contacts to the crystal surface.
摘要翻译： 公开了一种CdZnTe（CZT）晶体，其具有天然CdO介电涂层以减少表面漏电流，从而提高使用CZT晶体的检测器的分辨率。 提供用于形成电介质涂层的两步法，其包括用常规溴/甲醇蚀刻处理的溶液蚀刻CZT晶体的表面，并用10w / o NH4F和10w的溶液钝化CZT晶体表面 / o H2O2在水中，将电触点连接到晶体表面。
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公开(公告)号：US09638813B2
公开(公告)日：2017-05-02
申请号：US14871162
申请日：2015-09-30
申请人： Ashley Stowe , Arnold Burger , Eric Lukosi
发明人： Ashley Stowe , Arnold Burger , Eric Lukosi
摘要： A combined thermal neutron detector and gamma-ray spectrometer system, including: a detection medium including a lithium chalcopyrite crystal operable for detecting thermal neutrons in a semiconductor mode and gamma-rays in a scintillator mode; and a photodetector coupled to the detection medium also operable for detecting the gamma rays. Optionally, the detection medium includes a 6LiInSe2 crystal. Optionally, the detection medium comprises a compound formed by the process of: melting a Group III element; adding a Group I element to the melted Group III element at a rate that allows the Group I and Group III elements to react thereby providing a single phase I-III compound; and adding a Group VI element to the single phase I-III compound and heating; wherein the Group I element includes lithium.
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