Study of the Delayed Pumping Effect in an Underground Laboratory by Correlation Analysis of Radon and Air Ion Concentrations

IF 0.7 4区地球科学 Q4 GEOCHEMISTRY & GEOPHYSICS

Geomagnetism and Aeronomy Pub Date : 2024-03-06 DOI:10.1134/S0016793223600765

L. B. Bezrukov, I. S. Karpikov, V. V. Kazalov, A. K. Mezhokh, S. V. Ingerman, V. V. Sinev, N. Yu. Agafonova, E. A. Dobrynina, R. I. Enikeev, I. R. Shakir’yanova, V. F. Yakushev, Yu. N. Eroshenko, N. A. Filimonova

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Abstract

The results of correlation analysis of radon and air ion concentrations based on measurement data in an underground laboratory are presented. For pairs of pressure–radon and pressure–ion variables, a delayed pumping effect was revealed, similar to that previously observed for neutrons and gamma rays. A simple phenomenological model is presented to explain the results obtained. Within this model, the delay is caused by the gradual accumulation of radon in the room as atmospheric pressure decreases. The balance of the accumulation rate of radon, the time of its radioactive decay, and the characteristic time of pressure variations leads to an effective delay of 2 days between variations in atmospheric pressure and radon concentration. Correlation analysis for pressure–ion variables indicates that the air carrying radon into the laboratory already contains ions formed in soil pores. These ions make up approximately 21% of the total ions in the laboratory.

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通过氡和空气离子浓度的相关分析研究地下实验室的延迟抽水效应

摘要介绍了根据一个地下实验室的测量数据对氡和空气离子浓度进行相关分析的结果。对于压力-氡和压力-离子变量对，发现了一种延迟泵效应，类似于以前在中子和伽马射线中观察到的延迟泵效应。本文提出了一个简单的现象学模型来解释所获得的结果。在该模型中，延迟是由于氡在室内随着大气压力的降低而逐渐积累造成的。氡的积累率、其放射性衰变时间和压力变化的特征时间之间的平衡导致了大气压力变化和氡浓度变化之间 2 天的有效延迟。压力-离子变量的相关分析表明，将氡带入实验室的空气中已经含有在土壤孔隙中形成的离子。这些离子约占实验室离子总量的 21%。

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来源期刊

Geomagnetism and Aeronomy Earth and Planetary Sciences-Space and Planetary Science

CiteScore

1.30

自引率

33.30%

发文量

审稿时长

4-8 weeks

期刊介绍： Geomagnetism and Aeronomy is a bimonthly periodical that covers the fields of interplanetary space; geoeffective solar events; the magnetosphere; the ionosphere; the upper and middle atmosphere; the action of solar variability and activity on atmospheric parameters and climate; the main magnetic field and its secular variations, excursion, and inversion; and other related topics.