Measurement device and method for radioactive inert gases

An inert gas and measuring device technology, applied in the field of radioactive inert gas measuring devices, can solve the problems of accuracy and low reliability, etc.

Pending Publication Date: 2018-11-13
BEIJING RADIATION APPL RES CENT
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Problems solved by technology

[0011] The embodiment of the present invention provides a radioactive inert gas measuring device to solve the technical problems of the accuracy and low reliability of the radioactive inert gas measurement results in the prior art

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  • Measurement device and method for radioactive inert gases
  • Measurement device and method for radioactive inert gases
  • Measurement device and method for radioactive inert gases

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Embodiment Construction

[0030] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in further detail below in conjunction with the embodiments and accompanying drawings. Here, the exemplary embodiments and descriptions of the present invention are used to explain the present invention, but not to limit the present invention.

[0031] In an embodiment of the present invention, a measuring device for radioactive inert gas is provided, such as figure 1 As shown, the device includes:

[0032] Signal detection device 1, used to detect the β electrical pulse signal generated by the β decay of the radioactive noble gas nuclide in the gas sample to be tested, and detect the γ electrical pulse signal generated by the γ decay of the radioactive noble gas nuclide in the gas sample to be tested ;

[0033] The signal acquisition and processing device 2 is connected with the signal detection device, and is used to collect the β ...

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Abstract

The embodiments of the present invention provide a measurement device and method for radioactive inert gases. The measurement device includes a signal detecting device, a signal acquisition and processing device, and a computing device; the signal detecting device is used for detecting beta electric pulse signals generated by the beta decay of radioactive inert gas nuclides in a gas sample to be tested, and detecting gamma electric pulse signals generated by the gamma decay of the radioactive inert gas nuclides in the gas sample to be tested; the signal acquisition and processing device acquires the beta electric pulse signals and the gamma electric pulse signals in real time, judges whether the cascade decay of beta decay and gamma decay occurs according to the beta electric pulse signalsand the gamma electric pulse signals, and generates gamma spectral lines according to the gamma electric pulse signals; and when the cascade decay of beta decay and gamma decay occurs and a certain of radioactive inert gas nuclides exist, the characteristic energy of such kind of radioactive inert gas nuclides and characteristic energy corresponding to the gamma spectral lines satisfying a presetcondition, the computing device is used for calculating the concentration value of the activity of the radioactive inert gas nuclides. With the measurement device and method of the invention adopted,the accuracy and reliability of the measurement results of the radioactive inert gases can be improved.

Description

technical field [0001] The invention relates to the technical field of environmental radiation monitoring, in particular to a measuring device and method for radioactive inert gas. Background technique [0002] During the operation of nuclear facilities, radioactive nuclides may be released and spread into the atmosphere, endangering environmental safety and personnel health. Among them, radioactive inert gas may be produced due to fuel cladding damage or activation of neutron absorption by materials in the core area. Its monitoring is of great significance for ensuring the operation safety of nuclear facilities and the health of environmental personnel. [0003] Radioactive inert gas is an important monitoring source item for environmental assessment of nuclear facilities. The source term report is the basis of the environmental impact assessment of nuclear power plants. According to the requirements of environmental impact assessment, inert gas is an important part of th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01T1/167
CPCG01T1/167
Inventor 徐宏坤黄子瀚曾心苗王戈牟长利殷荫
Owner BEIJING RADIATION APPL RES CENT
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