Alpha energy spectrum measuring method of radon in soil based on static diffusion and electrostatic adsorption principle of radon in soil

Abstract

The invention discloses an alpha energy spectrum measuring method of radon in soil based on a static diffusion and electrostatic adsorption principle of the radon in soil, which comprises the following steps: (A) during measuring, burying a radon daughter electrostatic adsorption device in soil for a period of time, and then taking the radon daughter electrostatic adsorption device out and using an alpha energy spectrum measuring device to measure adsorbed radon daughters; (B) using a high-voltage electrostatic charging device to charge the radon daughter electrostatic adsorption device so as to enable the radon daughter electrostatic adsorption device to have high-voltage static electricity; (C) using an alpha energy spectrum measuring and data managing device to measure the alpha energy spectrum information of the adsorbed radon daughters of the radon daughter electrostatic adsorption device and concentratively managing the data; and (D) using a computer software analysis system to detailedly analyze the measuring data. The method can overcome the defects of the prior measuring method of the radon in soil, solve the problems of low soil radon measurement efficiency, precision, accuracy and reliability, and the like, indirectly measure the radon in soil by measuring nuclides of the radon daughters in soil, overcome the influences of thoron and meet the urgent requirement on the measurement of the radon the soil of the geological survey field and the environmental evaluation field at present.

Description

technical field [0001] The invention relates to the technical field of detection. Specifically, aiming at the application requirements of measuring radon in soil in the fields of geological prospecting and environmental assessment, a method for measuring radon alpha energy spectrum in soil based on the principle of static diffusion and electrostatic adsorption of radon in soil is proposed. Background technique [0002] Soil radon measurement is widely used in the fields of geological exploration and environmental radioactivity assessment. In the field of geological exploration, uranium ore exploration, bedrock groundwater exploration, underground coal seam spontaneous combustion fire distribution exploration, radon anomaly monitoring before earthquakes, landslide sliding structural zone exploration, ground subsidence and goaf exploration, building foundation hidden faults and The exploration of ground fissures can be realized by soil radon measurement. In the field of envir...

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Problems solved by technology

[0004] The technical problem to be solved by the present invention is how to provide a radon α energy spectrum measurement method in soil based on the principle of static diffusion and electrostatic adsorption of radon in soil. , measurement accuracy, measurement accuracy, and low measurement reliability, it can realize the qualitative measurement of radon progeny nuclides in the soil, thereby indirectly realizing the measurement of radon in the soil, and can eliminate the influence of thoron, thus meeting the requirements of There is an urgent need for soil radon measurement in the field of geological prospecting and environmental assessment

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