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