Effects of inhomogeneity and contamination in k0-INAA of low (K, Th, U)-content sand for the annual radiation dose determination in luminescence dating

F. De Corte; S. Hossain; D. Vandenberghe; P. Van den Haute

doi:10.1007/s10967-007-0125-1

Journal of Radioanalytical and Nuclear Chemistry

Volume/Issue:: Volume 271: Issue 1

Effects of inhomogeneity and contamination in k₀-INAA of low (K, Th, U)-content sand for the annual radiation dose determination in luminescence dating

Authors:

F. De Corte

F. De Corte Ghent University Laboratory of Analytical Chemistry, Institute for Nuclear Sciences Proeftuinstraat 86 B-9000 Gent Belgium

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S. Hossain

S. Hossain Ghent University Laboratory of Analytical Chemistry, Institute for Nuclear Sciences Proeftuinstraat 86 B-9000 Gent Belgium

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D. Vandenberghe

D. Vandenberghe Ghent University Laboratory of Analytical Chemistry, Institute for Nuclear Sciences Proeftuinstraat 86 B-9000 Gent Belgium

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, and

P. Van den Haute

P. Van den Haute Ghent University Laboratory for Mineralogy, Petrography and Micropedology, Geological Institute Krijgslaan 281 B-9000 Gent Belgium

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Pages:: 173–178

Online Publication Date:: 06 Dec 2006

Publication Date:: 01 Jan 2007

Article Category:: Research Article

DOI:: https://doi.org/10.1007/s10967-007-0125-1

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Abstract

It was demonstrated that for the determination of the annual radiation dose for use in luminescence dating of sediments, one should be aware of possible material inhomogeneities when applying analysis methods (such as k₀-INAA) with sample intakes of the order of the gram (to be compared with Ge gamma-ray spectrometry in cylindrical or Marinelli geometry, the latter involving ∼1.5 kg material). Moreover, when trying to remove the inhomogeneity, care should be taken to avoid contamination of the elements investigated, especially in the case of low (K, Th, U)-content sand with a considerable abrasive action (such as the Ossendrecht coversand dealt with in the present work). Whereas contamination was indeed shown to happen when grinding the material in a porcelain mortar, a satisfactory technique proved to be agate-ball milling.

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Journal of Radioanalytical and Nuclear Chemistry

Print ISSN:: 0236-5731

Online ISSN:: 1588-2780

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Journal of Radionalytical and Nuclear Chemistry
Language	English
Size	A4
Year of Foundation	1968
Volumes per Year	1
Issues per Year	12
Founder	Akadémiai Kiadó
Founder's Address	H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher	Akadémiai Kiadó Springer Nature Switzerland AG
Publisher's Address	H-1117 Budapest, Hungary 1516 Budapest, PO Box 245. CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible Publisher	Chief Executive Officer, Akadémiai Kiadó
ISSN	0236-5731 (Print)
ISSN	1588-2780 (Online)