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Method for monitoring radioactive source of mobile diagnostic machine

A radioactive source and flaw detector technology, which is applied in the field of mobile flaw detector radioactive source monitoring, can solve the problem of whether the radioactive source has fallen off and its position accurately, and achieve the effect of reducing additional workload

Pending Publication Date: 2021-10-15
深圳市斯帕特科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

2) The source braid position indicator system is adopted. The system judges the position of the source lobe according to the rotation of the gear of the control part, instead of directly judging the position of the radioactive source.

Method used

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  • Method for monitoring radioactive source of mobile diagnostic machine
  • Method for monitoring radioactive source of mobile diagnostic machine
  • Method for monitoring radioactive source of mobile diagnostic machine

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Embodiment Construction

[0032] The specific embodiment of the present invention will be further described below in conjunction with accompanying drawing:

[0033] Such as Figure 2-3 Shown, the working principle of the present invention:

[0034] Use the dose rate detector to analyze and measure the radiation dose rate in the time domain during the shaking out and retracting process of the radioactive source of the flaw detector, and obtain the time domain-radiation dose rate coordinate curve. When the radioactive source belongs to the normal shaking out and retracting process, the shaking out is standardized The radiation dose rate curve and the reverse curve of the normalized radiation dose rate should have a high degree of similarity, such as figure 2 and image 3 shown. It is easy to understand that when the reverse curve of the radiation dose rate during the recovery process is quite different from the curve of the radiation dose rate when it is shaken out, it must be that the radioactive so...

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Abstract

The invention relates to the technical field of radiation monitoring, in particular to a method and a device for monitoring a radioactive source of a mobile diagnostic machine. Time domain analysis measurement is carried out on a radiation dose rate in the shaking-out and withdrawing processes of a radioactive source of a flaw detector by using a dose rate detector to obtain a time domain-radiation dose rate coordinate curve. When the radioactive source is in a normal shaking-out and withdrawing process, the shaken-out standardized radiation dose rate curve and the recovered standardized radiation dose rate reverse curve have high similarity, and when the radiation dose rate reverse curve and the shaken-out radiation dose rate curve are greatly different in the withdrawing process, it is judged that the radioactive source is lost; whether the radioactive source is normally withdraw or not after the mobile flaw detector completes operation can be correctly identified and judged, and the extra workload of personnel is reduced.

Description

technical field [0001] The invention relates to the technical field of radiation monitoring, in particular to a method for monitoring radiation sources of a mobile flaw detector. Background technique [0002] Mobile flaw detection is the working process of detecting internal defects of objects with portable or mobile Y-ray flaw detectors outdoors, in the production workshop or on the installation site. Because of its changing outdoor operation scenarios, wide range of industries, and low professionalism of flaw detection staff, it has become a hard-hit area for radioactive source safety hazards. A common mobile flaw detector is a complete set of flaw detection equipment consisting of a flaw detector body, a control cable, a source pipe, a source braid position indicating system, and a source braid. The control part of the mobile flaw detector is composed of a hand crank, a control guide tube, a drive cable (flexible shaft) and a drive gear. The hand crank is connected with...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01T1/02
CPCG01T1/02
Inventor 冯江平张金帆林择华杨颖琪丁敏霞刘焱郭键锋时劲松郑忠正陈峰韩发明平秀坤
Owner 深圳市斯帕特科技有限公司