Investigation of a novel on-site U concentration analysis method for UO2 pellets using gamma spectroscopy

As the IAEA has applied integrated safeguards and a state level approach to member states, the importance of national inspection has increased. However, the requirements for national inspection for some member states are different from the IAEA safeguards. In particular, the national inspection for...

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Main Authors: Haneol Lee, Chan Jong Park
Format: Article
Language:English
Published: Elsevier 2021-06-01
Series:Nuclear Engineering and Technology
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S1738573320309475
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author Haneol Lee
Chan Jong Park
author_facet Haneol Lee
Chan Jong Park
author_sort Haneol Lee
collection DOAJ
description As the IAEA has applied integrated safeguards and a state level approach to member states, the importance of national inspection has increased. However, the requirements for national inspection for some member states are different from the IAEA safeguards. In particular, the national inspection for the ROK requires on-site U concentration analysis due to a domestic notification. This research proposes an on-site U concentration analysis (OUCA) method for UO2 pellets using gamma spectroscopy to satisfy the domestic notification requirement. The OUCA method calculates the U concentration of UO2 pellets using the measured net X-ray counts and declared 235U enrichment. This research demonstrates the feasibility of the OUCA method using both MCNP simulation and experiment. It simulated and measured the net X-ray counts of different UO2 pellets with different U concentrations and 235U enrichments. The simulated and measured net X-ray counts were fitted to polynomials as a function of U concentration and 235U enrichment. The goodness-of-fit results of both simulation and experiment demonstrated the feasibility of the OUCA method.
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spelling doaj.art-522a2e797ce9427aa14d12eded57d72a2022-12-21T22:54:08ZengElsevierNuclear Engineering and Technology1738-57332021-06-0153619551963Investigation of a novel on-site U concentration analysis method for UO2 pellets using gamma spectroscopyHaneol Lee0Chan Jong Park1Corresponding author.; Korea Institute of Nuclear Non-proliferation and Control (KINAC), 1418 Yuseong-daero, Yuseong-gu, Daejeon, 34101, Republic of KoreaKorea Institute of Nuclear Non-proliferation and Control (KINAC), 1418 Yuseong-daero, Yuseong-gu, Daejeon, 34101, Republic of KoreaAs the IAEA has applied integrated safeguards and a state level approach to member states, the importance of national inspection has increased. However, the requirements for national inspection for some member states are different from the IAEA safeguards. In particular, the national inspection for the ROK requires on-site U concentration analysis due to a domestic notification. This research proposes an on-site U concentration analysis (OUCA) method for UO2 pellets using gamma spectroscopy to satisfy the domestic notification requirement. The OUCA method calculates the U concentration of UO2 pellets using the measured net X-ray counts and declared 235U enrichment. This research demonstrates the feasibility of the OUCA method using both MCNP simulation and experiment. It simulated and measured the net X-ray counts of different UO2 pellets with different U concentrations and 235U enrichments. The simulated and measured net X-ray counts were fitted to polynomials as a function of U concentration and 235U enrichment. The goodness-of-fit results of both simulation and experiment demonstrated the feasibility of the OUCA method.http://www.sciencedirect.com/science/article/pii/S1738573320309475On-site U concentration verificationNuclear safeguardsCharacteristic X-rayNational inspectionGamma spectroscopy
spellingShingle Haneol Lee
Chan Jong Park
Investigation of a novel on-site U concentration analysis method for UO2 pellets using gamma spectroscopy
Nuclear Engineering and Technology
On-site U concentration verification
Nuclear safeguards
Characteristic X-ray
National inspection
Gamma spectroscopy
title Investigation of a novel on-site U concentration analysis method for UO2 pellets using gamma spectroscopy
title_full Investigation of a novel on-site U concentration analysis method for UO2 pellets using gamma spectroscopy
title_fullStr Investigation of a novel on-site U concentration analysis method for UO2 pellets using gamma spectroscopy
title_full_unstemmed Investigation of a novel on-site U concentration analysis method for UO2 pellets using gamma spectroscopy
title_short Investigation of a novel on-site U concentration analysis method for UO2 pellets using gamma spectroscopy
title_sort investigation of a novel on site u concentration analysis method for uo2 pellets using gamma spectroscopy
topic On-site U concentration verification
Nuclear safeguards
Characteristic X-ray
National inspection
Gamma spectroscopy
url http://www.sciencedirect.com/science/article/pii/S1738573320309475
work_keys_str_mv AT haneollee investigationofanovelonsiteuconcentrationanalysismethodforuo2pelletsusinggammaspectroscopy
AT chanjongpark investigationofanovelonsiteuconcentrationanalysismethodforuo2pelletsusinggammaspectroscopy