Low level gamma spectrometry by beta-gamma coincidence

Authors
Luca, A De Felice, P Tanase, G
Citation
A. Luca et al., Low level gamma spectrometry by beta-gamma coincidence, APPL RAD IS, 53(1-2), 2000, pp. 221-224
Citations number
9
Categorie Soggetti
Multidisciplinary
Journal title
APPLIED RADIATION AND ISOTOPES
ISSN journal
09698043 → ACNP
Volume
53
Issue
1-2
Year of publication
2000
Pages
221 - 224
Database
ISI
SICI code
0969-8043(200007/08)53:1-2<221:LLGSBB>2.0.ZU;2-F
Abstract
A beta-gamma coincidence system consisting of a 2 pi plastic beta detector and a Ge(Li) detector, is described. Such a system allows for a drastic red uction of background (similar to 70 times) as well as of Minimum Detectable Activity (similar to 7 times). An integral background (50-1500 keV) of les s than 0.1 cps is-obtained. The difficulty of the method, otherwise simple and inexpensive, is the precise determination of beta detector efficiency. (C) 2000 Elsevier Science Ltd. All rights reserved.