Uranium Enrichment Determination Using a New Analysis Code for the U XKα Region: HyperGam-U

HyperGam-U was recently developed to determine uranium enrichment based on γ- and X-ray spectroscopy analysis. The XKα region of the uranium spectrum contains 13 peaks for 235U and 238U and is used mainly for analysis. To describe the X-ray peaks, a Lorentzian broadened shape function was used, and...

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Main Authors: Junhyuck Kim, Hee-Dong Choi, Jongho Park
Format: Article
Language:English
Published: Elsevier 2016-06-01
Series:Nuclear Engineering and Technology
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S1738573316000620
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author Junhyuck Kim
Hee-Dong Choi
Jongho Park
author_facet Junhyuck Kim
Hee-Dong Choi
Jongho Park
author_sort Junhyuck Kim
collection DOAJ
description HyperGam-U was recently developed to determine uranium enrichment based on γ- and X-ray spectroscopy analysis. The XKα region of the uranium spectrum contains 13 peaks for 235U and 238U and is used mainly for analysis. To describe the X-ray peaks, a Lorentzian broadened shape function was used, and methods were developed to reduce the number of fitting parameters for decomposing the strongly overlapping peaks using channel-energy, energy-width, and energy-efficiency calibration functions. For validation, eight certified reference material uranium samples covering uranium enrichments from 1% to 99% were measured using a high-resolution planar high-purity germanium detector and analyzed using the HyperGam-U code. When corrections for the attenuation and true coincidence summing were performed for the detection geometry in this experiment, the goodness of fit was improved by a few percent. The enrichment bias in this study did not exceed 2% compared with the certified values for all measured samples.
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spelling doaj.art-db6b42e238d64ba78a43844f35a4b61c2022-12-21T18:49:31ZengElsevierNuclear Engineering and Technology1738-57332016-06-0148377878410.1016/j.net.2016.01.019Uranium Enrichment Determination Using a New Analysis Code for the U XKα Region: HyperGam-UJunhyuck Kim0Hee-Dong Choi1Jongho Park2Department of Nuclear Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of KoreaDepartment of Nuclear Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of KoreaNuclear Chemistry Research Division, Korea Atomic Energy Research Institute, 989 Daedeok-daero, Yuseong-gu, Daejeon 34057, Republic of KoreaHyperGam-U was recently developed to determine uranium enrichment based on γ- and X-ray spectroscopy analysis. The XKα region of the uranium spectrum contains 13 peaks for 235U and 238U and is used mainly for analysis. To describe the X-ray peaks, a Lorentzian broadened shape function was used, and methods were developed to reduce the number of fitting parameters for decomposing the strongly overlapping peaks using channel-energy, energy-width, and energy-efficiency calibration functions. For validation, eight certified reference material uranium samples covering uranium enrichments from 1% to 99% were measured using a high-resolution planar high-purity germanium detector and analyzed using the HyperGam-U code. When corrections for the attenuation and true coincidence summing were performed for the detection geometry in this experiment, the goodness of fit was improved by a few percent. The enrichment bias in this study did not exceed 2% compared with the certified values for all measured samples.http://www.sciencedirect.com/science/article/pii/S1738573316000620Attenuation CorrectionEnrichmentγ- and X-ray SpectroscopyHyperGam-UTrue Coincidence Summing CorrectionUranium
spellingShingle Junhyuck Kim
Hee-Dong Choi
Jongho Park
Uranium Enrichment Determination Using a New Analysis Code for the U XKα Region: HyperGam-U
Nuclear Engineering and Technology
Attenuation Correction
Enrichment
γ- and X-ray Spectroscopy
HyperGam-U
True Coincidence Summing Correction
Uranium
title Uranium Enrichment Determination Using a New Analysis Code for the U XKα Region: HyperGam-U
title_full Uranium Enrichment Determination Using a New Analysis Code for the U XKα Region: HyperGam-U
title_fullStr Uranium Enrichment Determination Using a New Analysis Code for the U XKα Region: HyperGam-U
title_full_unstemmed Uranium Enrichment Determination Using a New Analysis Code for the U XKα Region: HyperGam-U
title_short Uranium Enrichment Determination Using a New Analysis Code for the U XKα Region: HyperGam-U
title_sort uranium enrichment determination using a new analysis code for the u xkα region hypergam u
topic Attenuation Correction
Enrichment
γ- and X-ray Spectroscopy
HyperGam-U
True Coincidence Summing Correction
Uranium
url http://www.sciencedirect.com/science/article/pii/S1738573316000620
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