Wavelet based spectrum processing for reduction of counting duration for quantitative estimation of ultra-trace activity in environmental matrices

Paul, Sabyasachi and Sarkar, P. K. and Mishra, D. G. and Joshi, V. M. and Pulhani, V. (2014) Wavelet based spectrum processing for reduction of counting duration for quantitative estimation of ultra-trace activity in environmental matrices. Journal of Radioanalytical and Nuclear Chemistry , 299 (01). pp. 415-426. ISSN 0236-5731

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Abstract

A simple wavelet transformation based preprocessing method is employed to minimize the duration of counting for gamma spectrometric measurements of samples from environmental matrices. Among the various forms of analyzing wavelets, a suitable one is chosen for this purpose. Measurements with 55 different counting durations were subjected to the wavelet based processing and results were compared with long duration counting time measurements of 40K, 137Cs, radionuclide from 238U series (214Bi, 214Pb) and 232Th series (228Ac, 212Bi, 212Pb, 208Tl). It is observed that with a proper choice of the wavelet function a tenfold reduction in counting duration can be achieved with errors <5 %.

Item Type: Article
Uncontrolled Keywords: Wavelet analysis;Analyzing wavelets;Radioactivity in environmental matrix; 238U series; 232Th series
Subjects: Departments at MU > Manipal Centre for Natural Sciences
Depositing User: MCNS Library
Date Deposited: 08 Feb 2014 14:45
Last Modified: 05 Nov 2014 09:38
URI: http://eprints.manipal.edu/id/eprint/138702

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