Peak shape calibration of a Cadmium Zinc Telluride detector and its application for the determination of uranium enrichment

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Peak shape calibration of a Cadmium Zinc Telluride detector and its application for the determination of uranium enrichment. / Borella, Alessandro; Bruggeman, Michel; Rossa, Riccardo; Schillebeeckx, Peter.

In: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 986, 164718, 11.01.2021, p. 1-13.

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Harvard

Borella, A, Bruggeman, M, Rossa, R & Schillebeeckx, P 2021, 'Peak shape calibration of a Cadmium Zinc Telluride detector and its application for the determination of uranium enrichment', Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, vol. 986, 164718, pp. 1-13. https://doi.org/10.1016/j.nima.2020.164718

APA

Borella, A., Bruggeman, M., Rossa, R., & Schillebeeckx, P. (2021). Peak shape calibration of a Cadmium Zinc Telluride detector and its application for the determination of uranium enrichment. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 986, 1-13. [164718]. https://doi.org/10.1016/j.nima.2020.164718

Vancouver

Borella A, Bruggeman M, Rossa R, Schillebeeckx P. Peak shape calibration of a Cadmium Zinc Telluride detector and its application for the determination of uranium enrichment. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 2021 Jan 11;986:1-13. 164718. https://doi.org/10.1016/j.nima.2020.164718

Author

Borella, Alessandro ; Bruggeman, Michel ; Rossa, Riccardo ; Schillebeeckx, Peter. / Peak shape calibration of a Cadmium Zinc Telluride detector and its application for the determination of uranium enrichment. In: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 2021 ; Vol. 986. pp. 1-13.

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@article{977a13cc085243be991c6d35289f2927,
title = "Peak shape calibration of a Cadmium Zinc Telluride detector and its application for the determination of uranium enrichment",
abstract = "Cadmium Zinc Telluride (CZT) detectors are portable, room temperature serviceable, medium-resolution gamma-ray spectrometers. Their full-energy peak shape exhibits a low energy tail which complicates the analysis of spectra with overlapping peaks. In this paper, we determined the peak shape parameters of a CZT detector from measurements with calibrated point sources from 0.06 MeV up to 1.332 MeV. The peak shape parameters were obtained by applying a peak fitting algorithm that includes a Gaussian and a tail with energy dependent parameters in the region around the gamma-ray peak. The net peak areas were used to verify the absolute detection efficiency obtained with a Monte Carlo model of the CZT detector and the agreement in absolute terms was within 10{\%} over the considered energy range. The peak fitting algorithm was then applied to determine the net peak areas of the full energy peak in spectra recorded with certified uranium standards. The enrichment was then determined by using the so-called ‘peak ratio’ method. We observed a systematic bias in the net peak areas of the 0.258 MeV gamma-ray which therefore was not included in the analysis. Hence, the enrichment was underestimated by about 10{\%}.",
keywords = "Cadminium zinc telluride detectors, Medium-resolution gamma-ray spectroscopy, Peak shape calibration, Non-destructive assay, Uranium enrichment, Safeguards",
author = "Alessandro Borella and Michel Bruggeman and Riccardo Rossa and Peter Schillebeeckx",
note = "Score=10",
year = "2021",
month = "1",
day = "11",
doi = "10.1016/j.nima.2020.164718",
language = "English",
volume = "986",
pages = "1--13",
journal = "Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment",
issn = "0168-9002",
publisher = "Elsevier",

}

RIS - Download

TY - JOUR

T1 - Peak shape calibration of a Cadmium Zinc Telluride detector and its application for the determination of uranium enrichment

AU - Borella, Alessandro

AU - Bruggeman, Michel

AU - Rossa, Riccardo

AU - Schillebeeckx, Peter

N1 - Score=10

PY - 2021/1/11

Y1 - 2021/1/11

N2 - Cadmium Zinc Telluride (CZT) detectors are portable, room temperature serviceable, medium-resolution gamma-ray spectrometers. Their full-energy peak shape exhibits a low energy tail which complicates the analysis of spectra with overlapping peaks. In this paper, we determined the peak shape parameters of a CZT detector from measurements with calibrated point sources from 0.06 MeV up to 1.332 MeV. The peak shape parameters were obtained by applying a peak fitting algorithm that includes a Gaussian and a tail with energy dependent parameters in the region around the gamma-ray peak. The net peak areas were used to verify the absolute detection efficiency obtained with a Monte Carlo model of the CZT detector and the agreement in absolute terms was within 10% over the considered energy range. The peak fitting algorithm was then applied to determine the net peak areas of the full energy peak in spectra recorded with certified uranium standards. The enrichment was then determined by using the so-called ‘peak ratio’ method. We observed a systematic bias in the net peak areas of the 0.258 MeV gamma-ray which therefore was not included in the analysis. Hence, the enrichment was underestimated by about 10%.

AB - Cadmium Zinc Telluride (CZT) detectors are portable, room temperature serviceable, medium-resolution gamma-ray spectrometers. Their full-energy peak shape exhibits a low energy tail which complicates the analysis of spectra with overlapping peaks. In this paper, we determined the peak shape parameters of a CZT detector from measurements with calibrated point sources from 0.06 MeV up to 1.332 MeV. The peak shape parameters were obtained by applying a peak fitting algorithm that includes a Gaussian and a tail with energy dependent parameters in the region around the gamma-ray peak. The net peak areas were used to verify the absolute detection efficiency obtained with a Monte Carlo model of the CZT detector and the agreement in absolute terms was within 10% over the considered energy range. The peak fitting algorithm was then applied to determine the net peak areas of the full energy peak in spectra recorded with certified uranium standards. The enrichment was then determined by using the so-called ‘peak ratio’ method. We observed a systematic bias in the net peak areas of the 0.258 MeV gamma-ray which therefore was not included in the analysis. Hence, the enrichment was underestimated by about 10%.

KW - Cadminium zinc telluride detectors

KW - Medium-resolution gamma-ray spectroscopy

KW - Peak shape calibration

KW - Non-destructive assay

KW - Uranium enrichment

KW - Safeguards

UR - https://ecm.sckcen.be/OTCS/llisapi.dll/open/40841112

U2 - 10.1016/j.nima.2020.164718

DO - 10.1016/j.nima.2020.164718

M3 - Article

VL - 986

SP - 1

EP - 13

JO - Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

JF - Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

SN - 0168-9002

M1 - 164718

ER -

ID: 6946090