Comparison of NAA methods to determine medium-lived radionuclides in NIST soil standard reference materials

D. Wu; S. Landsberger

doi:10.1007/bf02037936

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Journal of Radioanalytical and Nuclear Chemistry

Volume/Issue:: Volume 179: Issue 1

Comparison of NAA methods to determine medium-lived radionuclides in NIST soil standard reference materials

Authors:

D. Wu

D. Wu University of Illinois Department of Nuclear Engineering 61801 Urbana IL (USA)

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S. Landsberger

S. Landsberger University of Illinois Department of Nuclear Engineering 61801 Urbana IL (USA)

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Pages:: 155–164

Online Publication Date:: 13 Aug 2005

Publication Date:: 17 Mar 1994

Article Category:: Research Article

DOI:: https://doi.org/10.1007/bf02037936

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Abstract

In order to determine the elemental concentrations of three new soil standard reference materials SRMs 2709, 2710 and 2711 from the National Institute of Standards and Technology (NIST), a comparative study of different medium-lived neutron activation analysis methods was carefully performed. Three irradiation conditions (1-hour thermal, 1-hour epithermal and 5-minute epithermal) and two counting modes (normal and Compton suppression) have been evaluated for following ten elements: As, Au, Cd, Ga, K, La, Mo, Sb, Sm, and W. The results show that the method of 5-minute epithermal and a 1-day decay is the optimum way to analyze Ga, while the addition of the Compton suppression is very beneficial for the determination of K. Using the Compton suppression system in conjunction with the 1-hour epithermal and a 1-week decay, is ideal to determine Au, Cd, Mo and W, while routine 1-hour thermal and a 1-week decay, is adequate to determine As, Sb, Sm and La in concentrations found in soil.

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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)