A performance comparison of k0-based ENAA and NAA in the (K, Th, U) radiation dose rate assessment for the luminescence dating of sediments

F. De Corte; M. Dejaeger; S. M. Hossain; D. Vandenberghe; A. De Wispelaere; P. Van den Haute

doi:10.1007/s10967-005-0640-x

Journal of Radioanalytical and Nuclear Chemistry

Volume/Issue:: Volume 263: Issue 3

A performance comparison of k₀-based ENAA and NAA in the (K, Th, U) radiation dose rate assessment for the luminescence dating of sediments

Authors:

F. De Corte

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

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M. Dejaeger

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

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S. M. Hossain

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

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D. Vandenberghe

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

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A. De Wispelaere

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

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, and

P. Van den Haute

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

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Pages:: 659–663

Online Publication Date:: 24 Mar 2005

Publication Date:: 17 Feb 2005

Article Category:: Research Article

DOI:: https://doi.org/10.1007/s10967-005-0640-x

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Summary

Recently, in our laboratory an intercomparison was made of methods for the annual radiation dose determination (assessed from direct radiation counting and/or from the measurement of the K, Th and U contents) applied to luminescence dating of loess and sand sediment, whereby the emphasis was put on their precision and accuracy. Although these properties are important, the duration of the measurement is also a practically relevant aspect. Indeed, direct alpha, beta and gamma-counting can last a week or more, and the determination of K, Th and U via NAA can take up to three weeks to enable proper gamma-ray spectrometry of the long-lived ²³³ Th/²³³Pa. Therefore, in the present work the performance of k₀-based epiCd-NAA (ENAA, with irradiation under a cadmium cover) when applied to sediments is compared to k₀-NAA. As concluded, with the use of k₀-ENAA the analysis turnaround time could be considerably reduced from ~3 weeks to ~ 2.5days, while maintaining satisfactory accuracy, precision and determination sensitivity.

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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)