A method for measuring in situ a specific soil activity of Sr-90

Authors
Chesnokov, AV Ignatov, SM Liksonov, VI Potapov, VN Shcherbak, SB Urutskoev, LI Ivanitskaya, MV
Citation
Av. Chesnokov et al., A method for measuring in situ a specific soil activity of Sr-90, NUCL INST A, 443(1), 2000, pp. 197-200
Citations number
4
Categorie Soggetti
Spectroscopy /Instrumentation/Analytical Sciences","Instrumentation & Measurement
Journal title
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
ISSN journal
01689002 → ACNP
Volume
443
Issue
1
Year of publication
2000
Pages
197 - 200
Database
ISI
SICI code
0168-9002(20000321)443:1<197:AMFMIS>2.0.ZU;2-S
Abstract
A method to measure the Sr-90 soil specific activity in situ is described. It is based on the count-rate determination in selected energy ranges of ha rdware gamma- and total gamma- and beta-spectra. The energy ranges of the m easurements were defined by a numerical simulation of the detector model. T o test the proposed method a portable device was developed. The accuracy of the Sr-90 soil specific activity measurements is 30% for a minimum detecta ble activity of about 150 Bq/kg. The measurement data obtained by this tech nique are presented and compared with the results of traditional radiochemi cal methods. (C) 2000 Elsevier Science B.V. All rights reserved.