Combined Alarm and Pollution Area Division Method Based on Adjacent Position Relationship of Detectors

A technology of adjacent locations and polluted areas, applied in the directions of alarms, measuring devices, instruments, etc., can solve the problems of detectors unable to identify polluted areas, low radiation detection sensitivity, etc., to achieve targeted decontamination and intuitive pollution display. , the effect of improving sensitivity

Active Publication Date: 2022-05-13
中国兵器装备集团自动化研究所有限公司 +1
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Problems solved by technology

[0004] The present invention proposes a joint alarm and pollution area division method based on the adjacent positional relationship of the detectors. The purpose is to make full use of the relevant information of multi-detector detection data, and adopt a joint alarm mode in combination with the positional relationship according to the gamma radioactive characteristics, so as to solve the problems in the prior art. The problem of low sensitivity of radiation detection, and solve the problem that when the traditional single-channel detector alarms, only the alarm is displayed, but the detector cannot identify the area where there is pollution

Method used

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  • Combined Alarm and Pollution Area Division Method Based on Adjacent Position Relationship of Detectors
  • Combined Alarm and Pollution Area Division Method Based on Adjacent Position Relationship of Detectors
  • Combined Alarm and Pollution Area Division Method Based on Adjacent Position Relationship of Detectors

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Embodiment

[0048] Such as figure 1 As shown, 6 detectors surround the detection cavity,

[0049] (1) The numbers are: 1~6;

[0050] (2) The background counts of each detector are: N 1 ~N 6 ;

[0051] (3) The radioactive source is placed at the geometric center of the measurement cavity, and the efficiencies of each detector are: ε 1 ~ε 6 ;

[0052] (4) During the measurement process, the net count of each detector is: R 1 ~R 6 ;

[0053] The positional relationship between the detectors is as follows:

[0054] (1) Two detectors are adjacent as follows:

[0055] (1,2), (1,4), (1,5), (1,6), (2,3), (2,5), (2,6), (3,4), (3 ,5), (3,6), (4,5), (4,6).

[0056] (2) The three detectors are adjacent as follows:

[0057] (1,2,5), (1,2,6), (1,4,5), (1,4,6), (2,3,5), (2,3,6), (3 ,4,5), (3,4,6).

[0058] (3) The four detectors are adjacent as follows:

[0059] (1,2,4,5), (1,2,4,6), (1,4,5,6), (2,3,4,5), (2,3,4,6), (3,4,5,6).

[0060] (4) The 5 detectors are adjacent as follows:

[006...

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Abstract

The invention discloses a joint alarm and pollution area division method based on the adjacent position relationship of detectors, which is used to improve detection sensitivity and display areas with pollution, so that the pollution display is more intuitive and the pollution cleaning is more targeted. Among them, the joint alarm method based on the adjacent position relationship of the detectors adds the dimension of the adjacent position relationship of the detectors in addition to the joint alarm of each detector and all detectors, and performs joint alarm processing on the adjacent detection data. The combination of detectors is processed; the pollution area division method based on the adjacent positional relationship of the detectors includes firstly dividing the detection cavity area surrounded by n detectors, and then adopting a joint alarm based on the adjacent positional relationship of the detectors In the method, the pollution area is located according to the alarm detector, and the area of ​​the pollution detection chamber is marked.

Description

technical field [0001] The invention relates to the field of radioactive material monitoring, in particular to a joint alarm and pollution area division method based on the adjacent position relationship of detectors. Background technique [0002] For the monitoring of surface gamma radioactive contamination, the detection method of plastic scintillator + photomultiplier tube is mostly used; for the monitoring of objects, the multi-detector method is used, and the alarm method mostly adopts a single detector and a joint alarm method of all detectors; the joint alarm method has Certain limitations, when the activity of the radioactive source is low, it may not be detected. [0003] The existing technology is aimed at the monitoring of surface gamma radioactive contamination. When radioactive contamination is detected, only the relevant detectors will give pollution prompts, and the relevant areas without contamination will be prompted, resulting in unintuitive pollution and i...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G08B21/18G08B29/18G01T1/167
CPCG08B21/18G08B29/185G01T1/167
Inventor 牛德青张锐韩强曹舟任永姚飞侯鑫李林珊鞠波廖鹏
Owner 中国兵器装备集团自动化研究所有限公司
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