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Detector for high temperature and high radiation environment radioactive nuclide analysis and measurement

A radionuclide, high radiation technique used in radiation measurement and nuclear electronics

Inactive Publication Date: 2015-08-05
NO 719 RES INST CHINA SHIPBUILDING IND
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0003] The purpose of the present invention is to overcome the shortcomings in the above-mentioned prior art, to provide a detector for radionuclide analysis and measurement in a high temperature and high radiation environment, to successfully realize the remote acquisition of weak pulse signals in a high temperature and high radiation environment, and at the same time Solved the problem of long-term quantitative analysis and measurement of radionuclides in high-temperature and high-radiation environments

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  • Detector for high temperature and high radiation environment radioactive nuclide analysis and measurement
  • Detector for high temperature and high radiation environment radioactive nuclide analysis and measurement

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Embodiment Construction

[0013] In order to make the objectives, technical solutions, and advantages of the present invention clearer, the following further describes the present invention in detail in conjunction with specific embodiments and with reference to the accompanying drawings.

[0014] Such as figure 1 , 2 As shown, this embodiment proposes a detector for the analysis and measurement of radionuclides in a high temperature and high radiation environment. The probe and the preamplifier are remotely processed, and the distance between the preamplifier and the probe is ≥30 meters to reduce the measurement In order to ensure that the weak pulse signal from the probe is not interfered or weakened during the transmission process, the present embodiment adopts a double-layer coaxial cable to realize long-distance signal collection.

[0015] Due to the strong environmental radiation of the object to be measured, in order to reduce the impact of environmental radiation on the measurement results, the pream...

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Abstract

The present invention relates to the field of radiation measurement and nuclear electronics and provides a detector for high temperature and high radiation environment radioactive nuclide analysis and measurement. The detector comprises a main measurement probe for measuring a detected ray, a compensation probe for measuring an impurity ray in a measured ray surrounding environment and a pre-amplifier. The main measurement probe, the compensation probe and the pre-amplifier are subjected to far processing. According to the pre-amplifier, two paths of completely same pre-amplifier circuits are subjected to differential processing, one path is used for connecting the main measurement probe, and the other path is used for connecting the compensation probe. According to the detector, the remote collection of a weak pulse signal in a high temperature and high radiation environment, and the quantitative analysis and measurement problem of a radioactive nuclide in the high temperature and high radiation environment is solved at the same time.

Description

Technical field [0001] The invention relates to the field of radiation measurement and nuclear electronics, in particular to a detector for the analysis and measurement of radionuclides in a high temperature and high radiation environment. It is suitable for radiation signal processing in nuclear power plants or nuclear logging, and is particularly suitable for local high temperatures. High radiation long time online radioactivity concentration measurement. Background technique [0002] At present, the detectors used for the quantitative analysis and measurement of radionuclides in high-temperature environments are mainly NaI (Tl) scintillator detectors. The most commonly used radioactivity measurement in high-temperature environments is in petroleum well logging, and there are also nuclear power plant steam generators for radioactive material leakage measurement. This type of scintillator detector integrates a preamplifier and probe, and at the same time, it is difficult to deal...

Claims

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Application Information

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IPC IPC(8): G01T1/20
Inventor 徐卫锋罗鹏代传波毕明德马天骥李湦许浒
Owner NO 719 RES INST CHINA SHIPBUILDING IND
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