Low-level single and coincidence gamma-ray spectrometry

I. Sýkora; M. Ješkovský; R. Janik; K. Holý; M. Chudý; P. Povinec

doi:10.1007/s10967-008-0632-8

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Journal of Radioanalytical and Nuclear Chemistry

Volume/Issue:: Volume 276: Issue 3

Low-level single and coincidence gamma-ray spectrometry

Authors:

I. Sýkora

I. Sýkora Comenius University Faculty of Mathematics, Physics and Informatics Mlynska dolina F1 SK-842 48 Bratislava Slovakia

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M. Ješkovský

M. Ješkovský Comenius University Faculty of Mathematics, Physics and Informatics Mlynska dolina F1 SK-842 48 Bratislava Slovakia

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R. Janik

R. Janik Comenius University Faculty of Mathematics, Physics and Informatics Mlynska dolina F1 SK-842 48 Bratislava Slovakia

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K. Holý

K. Holý Comenius University Faculty of Mathematics, Physics and Informatics Mlynska dolina F1 SK-842 48 Bratislava Slovakia

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M. Chudý

M. Chudý Comenius University Faculty of Mathematics, Physics and Informatics Mlynska dolina F1 SK-842 48 Bratislava Slovakia

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P. Povinec

P. Povinec Comenius University Faculty of Mathematics, Physics and Informatics Mlynska dolina F1 SK-842 48 Bratislava Slovakia

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Pages:: 779–787

Online Publication Date:: 05 May 2008

Publication Date:: 01 Jun 2008

Article Category:: Research Article

DOI:: https://doi.org/10.1007/s10967-008-0632-8

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Abstract

Analyses of anthropogenic and natural gamma-ray emitters in the environment require high sensitive detector systems operating in coincidence-anticoincidence modes. Thanks to an excellent energy resolution and a high efficiency, large volume HPGe detectors have been widely used in low-level gamma-ray spectrometry. In the present paper we discuss the characteristics of single and coincidence (HPGe-NaI(Tl)) arrangements suitable for analysis of environmental samples containing cascade gamma-ray emitters (e.g., ⁶⁰Co), positron emitters (e.g., ²²Na) and single gamma-ray emitters (e.g., ¹³⁷Cs). The detectors were placed in a large volume shields consisting of iron, lead and copper layers. The reduction of background for the single gamma-ray spectrometer is between 60 and 250, depending on the gamma-ray energy. As an improvement of the apparatus, low detection limits for analysis of ¹³⁷Cs (0.3 Bq·kg⁻¹) and ⁶⁰Co (0.1 Bq·kg⁻¹) in environmental samples, respectively, have been obtained.

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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)