Nagaraja, K. and Prasad, B. S. N. and Madhava, M. S. and Paramesh, L. (2003) Concentration of radon and its progeny near the surface of the earth at a continental station Pune (18 N, 74 E). Indian Journal of Pure and Applied Physics, 41 (7). pp. 562-569. ISSN 0019-5596
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In the atmosphere, above the surface of the Earth, the concentrations of radon and its progeny are measured along with the meteorological parameters from December 1997 to December 2000 for a continental location, Pune (18 N, 74 E), India. The concentrations show a maxima in the early morning hours when the turbulence mixing is minimum and a minima in the afternoon when the turbulence mixing is maximum. The median values of concentration are 9.70 Bq m(-3) and 2.84 Bq m(-3) respectively, for radon and its progeny, during the observation period. Ionization rates in the atmosphere are derived for the same period. It is found that, the ionization rate exhibits a median value of 5.48 ion-pairs cm(-3) s(-1). The diurnal and seasonal variations in the concentrations of radon and its progeny, and the ionization rate due to radioactivity are found to exhibit correlation with relative humidity, and anti-correlation with temperature. Radioactivity measurements and the derived ion pair production rates are important in modelling the atmospheric electrical conductivity near the Earth's surface.
| Item Type: | Article |
|---|---|
| Subjects: | D Physical Science > Physics |
| Divisions: | Department of > Physics |
| Depositing User: | LA manjunath user |
| Date Deposited: | 07 Sep 2019 11:28 |
| Last Modified: | 07 Sep 2019 11:28 |
| URI: | http://eprints.uni-mysore.ac.in/id/eprint/7800 |
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