Peak Shape Characterization of a 500 mm3 Cadmium Zinc Telluride Detector and Analysis of Spectroscopic Measurement Data for Uranium Samples

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Peak Shape Characterization of a 500 mm3 Cadmium Zinc Telluride Detector and Analysis of Spectroscopic Measurement Data for Uranium Samples. / Borella, Alessandro; Bruggeman, Michel; Rossa, Riccardo; Schillebeeckx, Peter; Vidmar, Tim.

In: Journal of Nuclear Materials Management, Vol. 49, No. 3, 01.12.2021, p. 75-83.

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@article{d55503b4cbb54a59bf65be4a1d48b900,
title = "Peak Shape Characterization of a 500 mm3 Cadmium Zinc Telluride Detector and Analysis of Spectroscopic Measurement Data for Uranium Samples",
abstract = "Gamma-ray spectra of calibrated sources and reference standard samples of uranium were recorded with a 500 mm3 Cadmium Zinc Telluride (CZT) detector. The measurements with calibrated sources were used to set up the peak-shape calibration of the CZT detector as a function of the deposited energy and the obtained net peak areas were compared with the ones obtained with Monte Carlo modelling. The obtained calibrations were then used to determine net peak areas in spectra measured of low-enriched uranium standard samples with the aim to determine their uranium enrichment with the “peak-ratio method.” The results of the analyses of different samples show that both the net peak area of the 0.258 MeV gamma ray and the intrinsic detector efficiency have a strong impact on the determined enrichment. In addition, the impact of the values of gamma-ray emission probabilities from different data libraries was also studied.",
keywords = "CZT, Cadmium zinc telluride, Medium resolution gamma-ray spectroscopy, Peak shape, Safeguards, Nondestructive assay, Nuclear data",
author = "Alessandro Borella and Michel Bruggeman and Riccardo Rossa and Peter Schillebeeckx and Tim Vidmar",
note = "Score=10; 2021 - Workshop on Isotopic Analysis of Uranium and Plutonium by Non-Destructive Assay Techniques<br/> ; Conference date: 15-02-2021 Through 19-02-2021",
year = "2021",
month = dec,
day = "1",
language = "English",
volume = "49",
pages = "75--83",
journal = "Journal of Nuclear Materials Management",
issn = "0893-6188",
publisher = "INMM - Institute of Nuclear Materials Management",
number = "3",
url = "https://www.iaea.org/events/evt1906701",

}

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TY - JOUR

T1 - Peak Shape Characterization of a 500 mm3 Cadmium Zinc Telluride Detector and Analysis of Spectroscopic Measurement Data for Uranium Samples

AU - Borella, Alessandro

AU - Bruggeman, Michel

AU - Rossa, Riccardo

AU - Schillebeeckx, Peter

AU - Vidmar, Tim

N1 - Conference code: EVT1906701

PY - 2021/12/1

Y1 - 2021/12/1

N2 - Gamma-ray spectra of calibrated sources and reference standard samples of uranium were recorded with a 500 mm3 Cadmium Zinc Telluride (CZT) detector. The measurements with calibrated sources were used to set up the peak-shape calibration of the CZT detector as a function of the deposited energy and the obtained net peak areas were compared with the ones obtained with Monte Carlo modelling. The obtained calibrations were then used to determine net peak areas in spectra measured of low-enriched uranium standard samples with the aim to determine their uranium enrichment with the “peak-ratio method.” The results of the analyses of different samples show that both the net peak area of the 0.258 MeV gamma ray and the intrinsic detector efficiency have a strong impact on the determined enrichment. In addition, the impact of the values of gamma-ray emission probabilities from different data libraries was also studied.

AB - Gamma-ray spectra of calibrated sources and reference standard samples of uranium were recorded with a 500 mm3 Cadmium Zinc Telluride (CZT) detector. The measurements with calibrated sources were used to set up the peak-shape calibration of the CZT detector as a function of the deposited energy and the obtained net peak areas were compared with the ones obtained with Monte Carlo modelling. The obtained calibrations were then used to determine net peak areas in spectra measured of low-enriched uranium standard samples with the aim to determine their uranium enrichment with the “peak-ratio method.” The results of the analyses of different samples show that both the net peak area of the 0.258 MeV gamma ray and the intrinsic detector efficiency have a strong impact on the determined enrichment. In addition, the impact of the values of gamma-ray emission probabilities from different data libraries was also studied.

KW - CZT

KW - Cadmium zinc telluride

KW - Medium resolution gamma-ray spectroscopy

KW - Peak shape

KW - Safeguards

KW - Nondestructive assay

KW - Nuclear data

UR - https://ecm.sckcen.be/OTCS/llisapi.dll/open/46940877

M3 - Article

VL - 49

SP - 75

EP - 83

JO - Journal of Nuclear Materials Management

JF - Journal of Nuclear Materials Management

SN - 0893-6188

IS - 3

T2 - 2021 - Workshop on Isotopic Analysis of Uranium and Plutonium by Non-Destructive Assay Techniques<br/>

Y2 - 15 February 2021 through 19 February 2021

ER -

ID: 7339831