Modeling β-γ coincidence spectra of 131mXe, 133Xe, 133mXe, and 135Xe

D. Haas; S. Biegalski; K. Foltz Biegalski

doi:10.1007/s10967-007-7178-z

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Journal of Radioanalytical and Nuclear Chemistry

Volume/Issue:: Volume 277: Issue 3

Modeling β-γ coincidence spectra of ^131mXe, ¹³³Xe, ^133mXe, and ¹³⁵Xe

Authors:

D. Haas

D. Haas The University of Texas at Austin Austin TX 78712 USA

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S. Biegalski

S. Biegalski The University of Texas at Austin Austin TX 78712 USA

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K. Foltz Biegalski

K. Foltz Biegalski The University of Texas at Austin Austin TX 78712 USA

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Pages:: 561–565

Online Publication Date:: 18 Apr 2008

Publication Date:: 01 Sep 2008

Article Category:: Research Article

DOI:: https://doi.org/10.1007/s10967-007-7178-z

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Abstract

In support of the Comprehensive Nuclear-Test-Ban Treaty (CTBT), improvements have been made to the model of the Automated Radioxenon Sampler/Analyzer (ARSA) β-γ coincidence detector for radioxenon monitoring. MCNPX is used to simulate the detector response for all the electrons and photons emitted from ^131mXe, ¹³³Xe, ^133mXe, ¹³⁵Xe, and ¹³⁷Cs signals. A MatLab code was written to incorporate the MCNPX results in the calculation of β-γ coincidence spectra. These will aid in the development of the Spectral Deconvolution Analysis Tool (SDAT)¹ and to calibrate β-γ coincidence systems. The models developed for this work include improvements over previous models in their ability to address Compton scattering in the β-cell, and the β-distribution offset in the 31 keV γ-ray region for ¹³³Xe.

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Journal of Radioanalytical and Nuclear Chemistry

Print ISSN:: 0236-5731

Online ISSN:: 1588-2780

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)