Activation analysis opportunities using cold neutron beams

R. Lindstrom; R. Zeisler; M. Rossbach

doi:10.1007/bf02132364

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Journal of Radioanalytical and Nuclear Chemistry

Volume/Issue:: Volume 112: Issue 2

Activation analysis opportunities using cold neutron beams

Authors:

R. Lindstrom

R. Lindstrom Center for Analytical Chemistry National Bureau of Standards 20899 Gaithersburg MD (USA)

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R. Zeisler

R. Zeisler Center for Analytical Chemistry National Bureau of Standards 20899 Gaithersburg MD (USA)

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M. Rossbach

M. Rossbach Institute of Applied Physical Chemistry Nuclear Research Center (KFA) D-5170 Jülich (FRG)

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Pages:: 321–330

Online Publication Date:: 16 Sep 2005

Publication Date:: 17 May 1987

Article Category:: Research Article

DOI:: https://doi.org/10.1007/bf02132364

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Abstract

Guided beams of cold neutrons being installed at a number of research reactors may become increasingly available for analytical research. A guided cold beam will provide higher neutron fluence rates and lower background interferences than in present facilities. In an optimized facility, fluence rates of 10⁹ n·cm^–2·s^–1 are obtainable. Focusing a large area beam onto a small target will further increase the neutron intensity. In addition, the shift to lower neutron energy increases the effective cross sections. The absence of fast neutrons and gamma rays permits detectors to be placed near the sample without intolerable background, and thus the efficiency for counting prompt gamma rays can be much higher than in present systems. Measurements made at the hydrogen cold source of the FRJ-2 (DIDO) reactor at the KFA provide a numerical evaluation of the improvements in PGAA with respect to signal-to-background ratios of important elements and matrices.

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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)