Peak Area Consistency Evaluation in Gamma Spectrometry

Quantification of radionuclide activities in gamma spectrometry can be a challenging task. It depends on efficiency calibration, peak area calculation, nuclide decay data and correction factors, such as attenuation correction or true coincidence summing corrections. These quantities can present sign...

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Autores principales:	Persson Henrik, Phillips Kara
Formato:	article
Lenguaje:	EN
Publicado:	EDP Sciences 2021
Materias:	gamma spectrometry self-consistency check genie 2000 Physics QC1-999
Acceso en línea:	https://doaj.org/article/a30c116a668c495aabafa6ed45925249
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spelling	oai:doaj.org-article:a30c116a668c495aabafa6ed459252492021-12-02T17:12:46ZPeak Area Consistency Evaluation in Gamma Spectrometry2100-014X10.1051/epjconf/202125307002https://doaj.org/article/a30c116a668c495aabafa6ed459252492021-01-01T00:00:00Zhttps://www.epj-conferences.org/articles/epjconf/pdf/2021/07/epjconf_animma2021_07002.pdfhttps://doaj.org/toc/2100-014XQuantification of radionuclide activities in gamma spectrometry can be a challenging task. It depends on efficiency calibration, peak area calculation, nuclide decay data and correction factors, such as attenuation correction or true coincidence summing corrections. These quantities can present significant challenges to an accurate analysis. It is therefore desirable to have a way of assessing the quality of the radionuclide quantification that can be applied to samples with unknown activities and radionuclide compositions. A verification of the self-consistency of the analysis is one possible way of accomplishing this. In gamma spectrometry it is possible to calculate radionuclide activities using information from multiple gamma emission energies. This leads to an overdetermined system for which the solution can be used to look for inconsistencies. By calculating the recovered peak areas from the radionuclide activities and comparing these to the measured peak areas, outliers can be identified and by resolving these inconsistencies the analysis of the spectrum can be improved. This peak area consistency evaluation can be used to find incorrect shape of the efficiency calibration, missing interferences in the nuclide decay data, and point to peaks where the peak area calculation needs to be optimized. The performance of the method has been shown on a simple spectrum consisting of three radionuclides that are interfering with each other as well as a complex spectrum with unknown radionuclide composition and activities. The method will be integrated into a future version the Genie 2000 Gamma Spectroscopy Software.Persson HenrikPhillips KaraEDP Sciencesarticlegamma spectrometryself-consistency checkgenie 2000PhysicsQC1-999ENEPJ Web of Conferences, Vol 253, p 07002 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	gamma spectrometry self-consistency check genie 2000 Physics QC1-999
spellingShingle	gamma spectrometry self-consistency check genie 2000 Physics QC1-999 Persson Henrik Phillips Kara Peak Area Consistency Evaluation in Gamma Spectrometry
description	Quantification of radionuclide activities in gamma spectrometry can be a challenging task. It depends on efficiency calibration, peak area calculation, nuclide decay data and correction factors, such as attenuation correction or true coincidence summing corrections. These quantities can present significant challenges to an accurate analysis. It is therefore desirable to have a way of assessing the quality of the radionuclide quantification that can be applied to samples with unknown activities and radionuclide compositions. A verification of the self-consistency of the analysis is one possible way of accomplishing this. In gamma spectrometry it is possible to calculate radionuclide activities using information from multiple gamma emission energies. This leads to an overdetermined system for which the solution can be used to look for inconsistencies. By calculating the recovered peak areas from the radionuclide activities and comparing these to the measured peak areas, outliers can be identified and by resolving these inconsistencies the analysis of the spectrum can be improved. This peak area consistency evaluation can be used to find incorrect shape of the efficiency calibration, missing interferences in the nuclide decay data, and point to peaks where the peak area calculation needs to be optimized. The performance of the method has been shown on a simple spectrum consisting of three radionuclides that are interfering with each other as well as a complex spectrum with unknown radionuclide composition and activities. The method will be integrated into a future version the Genie 2000 Gamma Spectroscopy Software.
format	article
author	Persson Henrik Phillips Kara
author_facet	Persson Henrik Phillips Kara
author_sort	Persson Henrik
title	Peak Area Consistency Evaluation in Gamma Spectrometry
title_short	Peak Area Consistency Evaluation in Gamma Spectrometry
title_full	Peak Area Consistency Evaluation in Gamma Spectrometry
title_fullStr	Peak Area Consistency Evaluation in Gamma Spectrometry
title_full_unstemmed	Peak Area Consistency Evaluation in Gamma Spectrometry
title_sort	peak area consistency evaluation in gamma spectrometry
publisher	EDP Sciences
publishDate	2021
url	https://doaj.org/article/a30c116a668c495aabafa6ed45925249
work_keys_str_mv	AT perssonhenrik peakareaconsistencyevaluationingammaspectrometry AT phillipskara peakareaconsistencyevaluationingammaspectrometry
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Peak Area Consistency Evaluation in Gamma Spectrometry

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