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On-line monitoring system and method for radioactive gas and radioactive aerosol

A radioactive gas and monitoring system technology, applied in the field of radiation monitoring to ensure radiation safety

Active Publication Date: 2015-04-29
SHANGHAI INST OF APPLIED PHYSICS - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In order to solve the problem that the radioactive gas and radioactive aerosol particles in the above-mentioned prior art need to be monitored separately, the present invention aims to provide an online monitoring system and method for radioactive gas and radioactive aerosol

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  • On-line monitoring system and method for radioactive gas and radioactive aerosol
  • On-line monitoring system and method for radioactive gas and radioactive aerosol

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Embodiment Construction

[0018] Below in conjunction with the drawings, preferred embodiments of the present invention are given and described in detail.

[0019] figure 1 Shown is an online monitoring system for radioactive gases and radioactive aerosols according to the present invention, which includes a sampling and measuring device 100, an inert gas chamber 200, an aspirating pump 300, a data processing unit 400, a display terminal 500, an integrated cabinet 600, and a roller 700 . Among them, the sampling and measuring device 100 , the inert gas chamber 200 , the air pump 300 , the data processing unit 400 and the display terminal 500 are all arranged on the integrated cabinet 600 . Specifically, the display terminal 500 is embedded above the integrated cabinet 600; the sampling and measuring device 100 is fixed above the integrated cabinet 600 and the rear side of the display terminal 500; the data processing unit 400 is embedded in the integrated cabinet 600, and is located between the sampli...

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Abstract

The invention relates to an on-line monitoring system for radioactive gas and radioactive aerosol. The on-line monitoring system comprises a sampling measuring device, an inert gas cavity and a gas pump; the sampling measuring device is provided with a circulation channel, filter paper used for sedimenting the radioactive aerosol and a radioactive aerosol detector used for detecting the radioactive aerosol; the filter paper is arranged on a path of the circulation channel, and the radioactive aerosol detector is arranged over the filter paper. The inert gas cavity is communicated with the circulation channel of the sampling measuring device through a connecting gas tube, and a radioactive gas detector used for detecting the radioactive gas is arranged in the inert gas cavity. The gas pump is communicated with the inert gas cavity. The invention further relates to an on-line monitoring method. By means of the on-line monitoring system and method, measurement on alpha rays and beta rays of radioactive aerosol particles is carried out through the radioactive aerosol detector, measurement on beta rays of the radioactive gas is carried out through the radioactive gas detector, and therefore real-time monitoring on the radioactive gas and the radioactive aerosol is completed.

Description

technical field [0001] The invention relates to the field of radiation monitoring, in particular to an on-line monitoring system and method for radioactive gas and radioactive aerosol. Background technique [0002] During the operation of reactors, the production and processing of radioisotopes, the preparation of nuclear fuel, the reprocessing of spent fuel, and the processing and disposal of radioactive waste 41 Ar, 133 Xe, 135 Xe and 85 Radioactive gases such as Kr and particles in the form of 60 Co. 90 Sr, 137 Cs, 232 Th, 233 U and other radioactive aerosols, these radioactive gases and radioactive aerosols may pollute the workplace and the atmospheric environment, thereby affecting the radiation safety of personnel and the environment. [0003] With the development of radioactivity monitoring technology, the nuclear environment monitoring agencies of some nuclear advanced countries have developed different types of radioactive gas and radioactive aerosol monitor...

Claims

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Application Information

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IPC IPC(8): G01T1/167
Inventor 蔡军夏晓彬涂传火陈明明洪鹏飞马英豪张志龙曾志强
Owner SHANGHAI INST OF APPLIED PHYSICS - CHINESE ACAD OF SCI
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