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公开(公告)号：US20180284302A1
公开(公告)日：2018-10-04
申请号：US15740813
申请日：2016-08-23
Applicant: NUCTECH COMPANY LIMITED
Inventor： Lan ZHANG , Weizhi WANG , Yingshuai DU , Zonggui WU , Wei ZHANG , Xuming MA , Kun ZHAO , Jun LI
Abstract: The present invention relates to the field of radiation detection, and provides a CdZnTe aerial inspection system and an inspection method. The inspection system comprises a CdZnTe spectrometer (10) and an aircraft (20). The aircraft (20) flies and carries the CdZnTe spectrometer (10) to realize a function of aerial inspection, thereby improving operating efficiency of nuclear radiation monitoring. The CdZnTe spectrometer (10) has high energy resolution, a small volume, a light weight, and desirable portability. By combining the CdZnTe spectrometer (10) and the aircraft (20), the present invention enables high measurement precision, a long operation duration, and an aerial access to a site of a nuclear accident to perform operations and inspect the site, thus reducing radiation exposure received by a person entering the site, and providing support for rescue operation.
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2.发明公开公开(公告)号：US20230213666A1
公开(公告)日：2023-07-06
申请号：US18146101
申请日：2022-12-23
Applicant: NUCTECH COMPANY LIMITED
Inventor： Jianmin LI , Guoping ZHU , Ming RUAN , Kun ZHAO , Yanli DENG , Junli LI , Qitian MIAO
IPC: G01T1/20
CPC classification number: G01T1/2002 , G01T1/2006
Abstract: Provided is a device of detecting a ray dose adaptable for coupling with a terminal, including: a housing, a scintillator and a light shielding layer. The housing has an accommodating space and a window, the accommodating space is in communication with the window; the scintillator is configured to receive a ray and convert a received ray into a visible light, the scintillator is located in the accommodating space, the scintillator covers the window, an outer surface of the scintillator includes a first outer surface and a second outer surface, and the first outer surface is adapted to a camera of the terminal; and the light shielding layer is configured to shield a visible light in an external environment from illuminating on the scintillator, the light shielding layer is arranged on the second outer surface of the scintillator.
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公开(公告)号：US20180024078A1
公开(公告)日：2018-01-25
申请号：US15720639
申请日：2017-09-29
Applicant: Nuctech Company Limited
Inventor： Kun ZHAO , Qiang WANG , Yangtian ZHANG , Hua PENG , Yuanjing LI
IPC: G01N23/00
Abstract: A method and device for detecting radioactive sources is disclosed. In one aspect, an example method includes measuring, by a detector, a count rate curve of an inspection object while the inspection object moves through the detector. Pattern recognition is performed on the count rate curve. Whether there are radioactive sources in the inspection object is determined according to a result of the pattern recognition, and if there are radioactive sources in the inspection object, a type of the radioactive sources is determined.
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公开(公告)号：US20230204798A1
公开(公告)日：2023-06-29
申请号：US17987244
申请日：2022-11-15
Applicant: Nuctech Company Limited
Inventor： Gaowa TUYA , Chunxuan HU , Kun ZHAO , Zengxue JIN , Zhidan MA
CPC classification number: G01T1/167 , G01T1/2921
Abstract: The present disclosure provides a gamma camera imaging method and a gamma camera imaging device. The method includes: selecting, from energy spectrums captured by a gamma camera on one or more radioactive materials, one or more energy ranges of each radioactive material among the one or more radioactive materials as one or more monitored energy regions of the radioactive material; performing image reconstruction on the monitored energy regions of each radioactive material among the one or more radioactive materials; performing normalization on images obtained through the image reconstruction; and performing superimposing on the normalized images to form a composite image.
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