4[Pi] space panorama radioactive 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 not realizing 4π space panorama and limited imaging field of view of the detector, and achieve the effect of avoiding blind search, simple and fast positioning process, and low cost

Active Publication Date: 2018-08-17
BEIJING NOVEL MEDICAL EQUIP LTD +1
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Problems solved by technology

[0003] In related technologies, imaging detectors based on coded plates (such as collimators of gamma radiation source locators, coded aperture imaging systems and their coded plates, etc.) limited field of vision
Although the detection of nuclear r

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  • 4[Pi] space panorama radioactive source positioning system and method
  • 4[Pi] space panorama radioactive source positioning system and method
  • 4[Pi] space panorama radioactive source positioning system and method

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[0027] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings, in which the same or similar reference numerals indicate the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary, and are intended to explain the present invention, but should not be construed as limiting the present invention.

[0028] The following describes the 4π space panoramic radioactive source positioning system and method according to the embodiments of the present invention with reference to the drawings. First, the 4π space panoramic radioactive source positioning system proposed according to the embodiments of the present invention will be described with reference to the accompanying drawings.

[0029] figure 1 It is a schematic structural diagram of a 4π space panoramic radiation source positioning system according t...

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Abstract

The present invention discloses a 4[Pi] space panorama radioactive source positioning system and method. The system comprises: a three-dimensional ray positioning detector which is a cuboid, wherein any one surface of the three-dimensional ray positioning detector is provided with a multi-channel electronic electrical circuit to obtain a three-dimensional effect position of a gamma ray on the detector; a plurality of collimators arranged on other surfaces of the detector; and a data processing center configured to obtain statistical distribution of a measurement event at each coordinate dimension to obtain distribution information, obtain incident plane information of the gamma ray and perform two-dimensional reconstruction according to coordinate information of other two-dimensional dimensions and the transmission matrix information of the collimators at the incident plane to obtain a two-dimensional position distribution diagram of the radioactive source at the incident plane. The system can obtain a two-dimensional position distribution diagram of the radioactive source according to the coordinate dimension of the measurement event, can obtain radioactive source 4[Pi] positioning field of view, can avoid blind search and can improve the efficiency of radioactive source search.

Description

technical field [0001] The invention relates to the technical field of nuclear radiation detection, in particular to a 4π space panoramic radiation source positioning system and method. Background technique [0002] With the development of science and technology, radioactive sources are widely used in various fields such as industry, agriculture, medicine, and military affairs, such as food sterilization, non-destructive testing, and radiation therapy. However, due to the high energy of the radioactive source, it can cause ionizing radiation, cause cell disease or damage cell tissue, and even cause harm to the human body, which is very dangerous. Therefore, strict management and monitoring of radioactive sources is required. When radioactive sources are lost, leaked or stolen, it is necessary to quickly search for radioactive sources to reduce their hazards. [0003] In related technologies, imaging detectors based on coded plates (such as collimators of gamma radiation sou...

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Application Information

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IPC IPC(8): G01T1/20G01T1/24
CPCG01T1/20G01T1/24
Inventor 魏清阳陈枝楠谢晋雄邝凯毅慕容灏鼎
Owner BEIJING NOVEL MEDICAL EQUIP LTD
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