Radon and its short-lived progeny: variations near the ground

Nagaraja, K. and Prasad, B. S. N. and Madhava, M. S. and Chandrashekara, M. S. and Paramesh, L. and Sannappa, J. and Pawar, S. D. and Murugavel, P. and Kamra, A. K. (2003) Radon and its short-lived progeny: variations near the ground. RADIATION MEASUREMENTS, 36 (1-6, S). pp. 413-417.

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Official URL: http://dx.doi.org/10.1016/S1350-4487(03)00162-8

Abstract

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 degreesN, 74 degreesE), India. The concentrations show maxima in the early morning hours when the turbulence mixing is minimum; whereas in the afternoon the turbulence mixing is maximum and concentrations exhibit minima. The median values of concentration are 9.70 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 the relative humidity, and anti-correlation with the temperature. (C) 2003 Elsevier Ltd. All rights reserved.

Item Type: Article
Additional Information: 21st International Conference on Nuclear Tracks in Solids (ICNTS-21), NEW DELHI, INDIA, OCT 21-25, 2003
Uncontrolled Keywords: radon; progeny; ionization rate; diurnal/seasonal variations
Subjects: Physical Sciences > Physics
Divisions: PG Campuses > Manasagangotri, Mysore > Physics
Depositing User: Users 11 not found.
Date Deposited: 12 Apr 2013 03:58
Last Modified: 06 Aug 2013 06:47
URI: http://eprints.uni-mysore.ac.in/id/eprint/4126

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