Effect of precipitation on the background levels of the atmospheric β- and γ-radiation.

Autor: Yakovleva VS; National Research Tomsk Polytechnic University, 30 Lenin Ave., Tomsk 634050, Russia. Electronic address: vsyakovleva@tpu.ru., Nagorsky PM; Institute of Monitoring of Climatic and Ecological Systems (IMCES), Siberian Branch of the Russian Academy of Sciences, 10/3 Academichesky Ave., Tomsk 634055, Russia., Cherepnev MS; National Research Tomsk Polytechnic University, 30 Lenin Ave., Tomsk 634050, Russia., Kondratyeva AG; National Research Tomsk Polytechnic University, 30 Lenin Ave., Tomsk 634050, Russia. Electronic address: kond_alla@tpu.ru., Ryabkina KS; National Research Tomsk Polytechnic University, 30 Lenin Ave., Tomsk 634050, Russia.
Jazyk: angličtina
Zdroj: Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine [Appl Radiat Isot] 2016 Dec; Vol. 118, pp. 190-195. Date of Electronic Publication: 2016 Sep 14.
DOI: 10.1016/j.apradiso.2016.09.017
Abstrakt: Results of experimental and theoretical studies of the responses of the β- and γ-radiation fields in the surface atmosphere to precipitation are presented. Most of the bursts of the β-radiation flux density and γ-radiation dose rate were found to coincide with periods of precipitation. However, the magnitude of bursts does not always correlate with the intensity of the precipitation. The following aspects were analyzed: the total duration of recorded bursts, the durations of the rises and recessions of the bursts, the form of the bursts and the dependence of the magnitude of the bursts on the altitude of the detector position. Results of a simulation of the impact of rainfall on the volume activity of the radon decay products and on the background levels of the atmospheric β- and γ-radiation were found to be in good agreement with the experimental data.
(Copyright © 2016 Elsevier Ltd. All rights reserved.)
Databáze: MEDLINE
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