Determination of radionuclides in small pieces of archaeological sample and its application to TL-dating

Citation
T. Hashimoto et al., Determination of radionuclides in small pieces of archaeological sample and its application to TL-dating, RADIAT MEAS, 33(1), 2001, pp. 95-101
Citations number
8
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
RADIATION MEASUREMENTS
ISSN journal
1350-4487 → ACNP
Volume
33
Issue
1
Year of publication
2001
Pages
95 - 101
Database
ISI
SICI code
1350-4487(200102)33:1<95:DORISP>2.0.ZU;2-5
Abstract
In archaeological TL-dating from precious sample, it is necessary to determ ine both the accurate measurement of annual dose and natural accumulated do se, using as small a sample as possible. For these purposes, the small piec es of sample were separated by sodium polytungstate heavy liquid separation method. An alpha -liquid scintillation counting method combined with time interval analysis applied to the simultaneous determination of the U- and T h-series members, while K-40 was determined by an atomic absorption spectro photometer. The analytical results were compared with the radioactive conte nts from the gamma -spectrometry, and gave a good agreement. In addition, t he natural red thermoluminescence glowcurve from quartz separated was consi stent with the result from a conventional quartz inclusion procedure. The p ossibility of practical TL-dating using a smaller sample, approximately 1 g , was ascertained. (C) 2001 Elsevier Science Ltd. All rights reserved.