Laboratory application of NaI(Tl) gamma-ray spectrometry to studies of natural radioactivity in geophysics

Authors
Chiozzi, P De Felice, P Fazio, A Pasquale, V Verdoya, M
Citation
P. Chiozzi et al., Laboratory application of NaI(Tl) gamma-ray spectrometry to studies of natural radioactivity in geophysics, APPL RAD IS, 53(1-2), 2000, pp. 127-132
Citations number
10
Categorie Soggetti
Multidisciplinary
Journal title
APPLIED RADIATION AND ISOTOPES
ISSN journal
09698043 → ACNP
Volume
53
Issue
1-2
Year of publication
2000
Pages
127 - 132
Database
ISI
SICI code
0969-8043(200007/08)53:1-2<127:LAONGS>2.0.ZU;2-V
Abstract
We implemented a laboratory apparatus based on a NaI(TI) gamma-ray spectrom eter for the assessment of naturally occurring radioactive materials. This apparatus is devoted to the quantitative determination of U, Th and R in ro ck and soil samples. We analysed the calibration procedures with particular emphasis to factors which affect accuracy and detection limits. A first se ries of measurements were compared to those obtained by means of high energ y gamma-ray spectrometry. A discussion was made on factors restricting the approach based on scintillation spectrometry, such as secular equilibrium a nd radon encapsulation. (C) 2000 Elsevier Science Ltd. All rights reserved.