4π panoramic radiation source positioning system and method
A positioning system and radioactive source technology, applied in the field of nuclear radiation detection, can solve the problems of limited detection range of radioactive sources, and achieve the effects of limited direction range, wide detection range and cost saving
Active Publication Date: 2020-03-03
UNIV OF SCI & TECH BEIJING
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Problems solved by technology
[0005] An embodiment of the present invention provides a 4π panoramic radioactive source positioning system to at least solve the technical problem of limited detection of radioactive source directions caused by the detector structure
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[0024] In order to enable those skilled in the art to better understand the solutions of the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only It is an embodiment of a part of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.
[0025] It should be noted that the terms "first" and "second" in the description and claims of the present invention and the above drawings are used to distinguish similar objects, but not necessarily used to describe a specific sequence or sequence. It is to be understood that the data so used are interchangeable under appropriate ...
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The invention discloses a 4π panoramic radiation source positioning system. Wherein, the system includes: an outer shell, wherein the outer shell is a spherical shell; a spherical core is arranged in the spherical shell, and the spherical core is made of a shielding protective material; The unit is composed of a scintillation crystal and a photodetector or a semiconductor detector; each detector unit corresponds to a detector vector, and the direction of the detector vector is the line from the center of the corresponding detector unit to the center of the spherical core Direction, the modulus of the detector vector is the count value of the detector unit; the position of the radiation source is determined by the sum of the detector vectors, and the purpose of panoramic detection of the radiation source is achieved by using the spherical shell and the detector vector, so that the radiation source The detection of the source is more accurate, the detection range is wider, the cost is saved, and the technical problem of the limited detection range of the radiation source direction caused by the detector structure is solved.
Description
technical field [0001] The invention relates to the technical field of nuclear radiation detection, in particular to a 4π panoramic radioactive source positioning system and method. Background technique [0002] Radioactive sources widely exist in many fields such as industry, agriculture, and medicine, such as food sterilization, non-destructive testing, nuclear medicine inspection, and radiation therapy. Due to the high energy of radioactive sources, they can cause ionizing radiation, cause cell lesions, or destroy cell tissues, thereby causing harm to the human body, and thus have great potential dangers. Therefore, strict management and effective management of radioactive sources are extremely necessary. Comprehensive monitoring. When the radioactive source is leaked or lost, it is more necessary to be able to quickly find and locate the radioactive source to reduce the harm and adverse social effects it brings. [0003] In recent years, imaging detectors based on code...
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IPC IPC(8): G01T1/202G01T1/24H04N5/225
CPCG01T1/202G01T1/24H04N23/51H04N23/54
Inventor 魏清阳戴甜甜谷宇
Owner UNIV OF SCI & TECH BEIJING