Determination of the uranium enrichment without calibration standards using a 500mm3 CdZnTe room temperature detector with a hybrid methodology based on peak ratios method and Monte Carlo counting efficiency simulations

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Determination of the uranium enrichment without calibration standards using a 500mm3 CdZnTe room temperature detector with a hybrid methodology based on peak ratios method and Monte Carlo counting efficiency simulations. / Meleshenkovskii, Iaroslav; Pauly, Nicolas; Labeau, Pierre-Etienne.

In: Applied Radiation and Isotopes, Vol. 148, 21.12.2018, p. 277-289.

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Meleshenkovskii, Iaroslav; Pauly, Nicolas; Labeau, Pierre-Etienne / Determination of the uranium enrichment without calibration standards using a 500mm3 CdZnTe room temperature detector with a hybrid methodology based on peak ratios method and Monte Carlo counting efficiency simulations.

In: Applied Radiation and Isotopes, Vol. 148, 21.12.2018, p. 277-289.

Research output: Contribution to journalArticle

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@article{c013f53ff15e40ada18404235074b9e8,
title = "Determination of the uranium enrichment without calibration standards using a 500mm3 CdZnTe room temperature detector with a hybrid methodology based on peak ratios method and Monte Carlo counting efficiency simulations",
keywords = "Uranium enrichment, CdZnTe, Room temperature, Semiconductor, Hybrid, Standardless, Medium resolution, Monte Carlo, Safeguards",
author = "Iaroslav Meleshenkovskii and Nicolas Pauly and Pierre-Etienne Labeau",
note = "Score=10",
year = "2018",
month = "12",
doi = "10.1016/j.apradiso.2018.12.025",
volume = "148",
pages = "277--289",
journal = "Applied Radiation and Isotopes",
issn = "0969-8043",
publisher = "Elsevier",

}

RIS - Download

TY - JOUR

T1 - Determination of the uranium enrichment without calibration standards using a 500mm3 CdZnTe room temperature detector with a hybrid methodology based on peak ratios method and Monte Carlo counting efficiency simulations

AU - Meleshenkovskii,Iaroslav

AU - Pauly,Nicolas

AU - Labeau,Pierre-Etienne

N1 - Score=10

PY - 2018/12/21

Y1 - 2018/12/21

N2 - Room temperature semiconductor detectors of CdZnTe type have been proposed as possible alternatives to spectrometers based on HPGe and NaI detectors. Attractive spectroscopic performance and portability, as well as continuous improvements in their design and availability in different sizes make them especially competitive in various radiation measurement applications where absence of cooling, small size and significantly better resolution compared to other room temperature detectors are an asset. Among these applications are nuclear safeguards that include uranium and plutonium isotopic composition determination tasks. This paper focuses on the investigation of possibilities and limits of a net peak area based methodology used for the determination of the uranium enrichment without use of calibration standards. Tests are conducted on a room temperature medium resolution spectrometer based on a 500mm3 CdZnTe sensor of a quasi-hemispherical design using which spectra of different statistical quality are obtained from certified uranium standards. Gamma-ray peaks in the 143–1001 keV energy range are used as uranium gamma-ray signatures. Performance assessment of an intrinsic calibration of the counting efficiency curve is conducted. A hybrid methodology based on a combination of the peak ratios method with Monte Carlo simulations of the counting efficiency curve is proposed for poor quality spectra. Implemented algorithms and analysis routines are described in detail and presented

AB - Room temperature semiconductor detectors of CdZnTe type have been proposed as possible alternatives to spectrometers based on HPGe and NaI detectors. Attractive spectroscopic performance and portability, as well as continuous improvements in their design and availability in different sizes make them especially competitive in various radiation measurement applications where absence of cooling, small size and significantly better resolution compared to other room temperature detectors are an asset. Among these applications are nuclear safeguards that include uranium and plutonium isotopic composition determination tasks. This paper focuses on the investigation of possibilities and limits of a net peak area based methodology used for the determination of the uranium enrichment without use of calibration standards. Tests are conducted on a room temperature medium resolution spectrometer based on a 500mm3 CdZnTe sensor of a quasi-hemispherical design using which spectra of different statistical quality are obtained from certified uranium standards. Gamma-ray peaks in the 143–1001 keV energy range are used as uranium gamma-ray signatures. Performance assessment of an intrinsic calibration of the counting efficiency curve is conducted. A hybrid methodology based on a combination of the peak ratios method with Monte Carlo simulations of the counting efficiency curve is proposed for poor quality spectra. Implemented algorithms and analysis routines are described in detail and presented

KW - Uranium enrichment

KW - CdZnTe

KW - Room temperature

KW - Semiconductor

KW - Hybrid

KW - Standardless

KW - Medium resolution

KW - Monte Carlo

KW - Safeguards

UR - http://ecm.sckcen.be/OTCS/llisapi.dll/open/33790289

U2 - 10.1016/j.apradiso.2018.12.025

DO - 10.1016/j.apradiso.2018.12.025

M3 - Article

VL - 148

SP - 277

EP - 289

JO - Applied Radiation and Isotopes

T2 - Applied Radiation and Isotopes

JF - Applied Radiation and Isotopes

SN - 0969-8043

ER -

ID: 5108089