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公开(公告)号：US20240319389A1
公开(公告)日：2024-09-26
申请号：US17735298
申请日：2022-05-03
发明人： Timothy Hossain , Clayton Fullwood
摘要： A system for detecting radiation includes a first array of neutron radiation detection devices, each radiation detection device including a charge storage region and a radiation reactive material; a first set of decoders to address the neutron radiation detection devices of the first array and to provide first signals indicative of the a state of the neutron radiation detection devices; a second array of gamma radiation detection devices, each gamma radiation detection device including a charge storage region in proximity to a high-z material; a second set of decoders to address the gamma radiation detection devices of the second array and to provide second signals indicative of a state of the gamma radiation detection devices; and a controller in communication with the first set of decoders and the second set of decoders and to receive the first and second signals.
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公开(公告)号：US20230400596A1
公开(公告)日：2023-12-14
申请号：US18238472
申请日：2023-08-26
发明人： Andrew INGLIS , Alison Forsyth , Zachary S. Hartwig , Philip C. Taber , Timothy Teal , Hidefumi Tomita
CPC分类号： G01T3/00 , G01T3/008 , H01J47/1233 , G21K1/00
摘要： A fissile neutron detection system includes an ionizing thermal neutron detector arrangement including an inner peripheral shape that at least substantially surrounds a moderator region for detecting thermal neutrons that exit the moderator region but is at least generally transparent to the incident fissile neutrons. A moderator is disposed within the moderator region having lateral extents such that any given dimension that bisects the lateral extents includes a length that is greater than any thickness of the moderator arrangement transverse to the lateral extents. The moderator can include major widthwise and major lengthwise lateral extents such that any given dimension across the lengthwise and widthwise lateral extents includes a length that is greater than any thickness of the moderator arrangement transverse to the lateral extents.
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公开(公告)号：US11835477B2
公开(公告)日：2023-12-05
申请号：US17375743
申请日：2021-07-14
发明人： Massimo Morichi
IPC分类号： G01N23/204 , G01N23/20 , G01T3/00 , G01V5/00 , G01T3/06
CPC分类号： G01N23/204 , G01N23/20083 , G01T3/00 , G01T3/06 , G01V5/0091
摘要： A method and a device for the detection of radioactive sources, based on the simultaneous use of two or more radiation detectors of different types and the composition of the data collected by the two or more radiation detectors.
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公开(公告)号：US20230341572A1
公开(公告)日：2023-10-26
申请号：US17796398
申请日：2021-01-29
IPC分类号： G01T3/00
CPC分类号： G01T3/00
摘要： A lightweight neutron dosimeter is disclosed. The dosimeter comprises a cylindrical body acting as moderator, an active component acting as neutron detector and neutron filters. The neutron filters are formed by at least two crowns placed inside the moderator, a first of said crowns being placed adjacent to the active component and a second crown being placed between the first crown and an inner wall surface of the moderator. The first crown includes top and bottom caps to cover open ends of the first crown, the top cap having an opening to allow introduction of the active component therein and a thickness of the top and bottom caps being the same as the thickness of the two crowns. The first and second crowns comprises vertical ribbons, an area covered by the plurality of vertical ribbons in each crown, excluding the top and bottom caps, being comprised in a range between 50-95%.
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公开(公告)号：US11782174B2
公开(公告)日：2023-10-10
申请号：US17625206
申请日：2020-07-10
摘要： A radiation detector (100) includes an insulating substrate (110), which includes a material that undergoes a change in an electrical property when subjected to ionizing radiation. A conductive film (112) is disposed in relation to a surface of the substrate. The conductive film (112) has a resistance that is a function of a state of the electrical property. A resistance measuring device measures resistance across the conductive film (112). The resistance measured by the resistance measuring device indicates an amount of ionizing radiation to which the substrate (110) has been subjected. In a method of determining exposure to a type of radiation, a boron nitride substrate is exposed to a radiation environment. A resistance is measured across a conductive film disposed in relation to the boron nitride substrate. Radiation exposure is calculated as a function of the resistance.
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公开(公告)号：US11742101B2
公开(公告)日：2023-08-29
申请号：US17178196
申请日：2021-02-17
发明人： Bryan van der Ende , Bhaskar Sur
IPC分类号： G21C17/07 , G21C17/108 , G21C17/10 , G01T3/00
CPC分类号： G21C17/108 , G21C17/10 , G01T3/00 , G21C17/07
摘要： A system for monitoring fissile material contents inside of a nuclear reactor can include at least a first neutron detector positioned outside a radiation shield and configured to detect a plurality of neutrons originating from the reactor core and having passed through the radiation shield, and configured to generate a first output signal, and a controller communicably linked to the first neutron detector to receive the first output signal and a power output of the nuclear reactor.
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公开(公告)号：US11733409B2
公开(公告)日：2023-08-22
申请号：US17739841
申请日：2022-05-09
发明人： Brian White , W. Bruce Feller , R. Gregory Downing
摘要： A neutron imaging system includes a neutron generator, a flight tube, a stage, a neutron imaging module, and a neutron shield. The flight tube enables neutrons from the neutron generator to enter the flight tube through an input opening and exit through an output opening. The stage supports a sample object to receive neutrons that pass through the entire length of the flight tube and the output opening. The neutron imaging module has a neutron-sensitive component that receives neutrons that pass through the sample object and generates neutron detection signals. The neutron shield surrounds at least a portion of the flight tube and the neutron imaging module to block at least a portion of stray neutrons that travel toward the neutron-sensitive component of the neutron imaging module, in which the stray neutrons do not enter the flight tube through the input opening of the flight tube.
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公开(公告)号：US20190101658A1
公开(公告)日：2019-04-04
申请号：US16150481
申请日：2018-10-03
发明人： Robert Stump
摘要： A system, method, and apparatus for simulating the detection of radiation comprise at least one simulated radioactive source, a simulated radiation detector, and an emulating module configured to simulate a detection level for the at least one simulated radioactive source according to a radiation level associated with the simulated radioactive source, wherein the simulated detection level is provided on the simulated radiation detector.
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公开(公告)号：US20190033468A1
公开(公告)日：2019-01-31
申请号：US16134049
申请日：2018-09-18
发明人： Yuanhao LIU , Ming-Chen HSIAO
摘要： Provided are a method for measuring dose distribution in a mixed radiation field of neutrons and gamma rays, and a method for measuring beam uniformity of a mixed radiation field of neutrons and gamma rays. The planar dose measuring method includes: a step of obtaining a total dose of neutrons and gamma rays by measuring with a dosimeter; and a step of analyzing a neutron dose. The method may effectively measure the doses of neutrons and gamma rays, may be applied to beam measurement and treatment plan validation, and thus improve the quality of treatment.
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公开(公告)号：US20180210098A1
公开(公告)日：2018-07-26
申请号：US15713919
申请日：2017-09-25
IPC分类号： G01T3/00
摘要： Systems and methods for neutron detection using tensioned metastable fluid detectors, using a single atom spectroscopy approach.
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