Determination of Minimum Detectable Activity (MDA) for AT1315 Gamma Spectrometer

The minimum detectable activity (MDA) is the activity that a system can detect with a given confidence level and good discrimination against the background radiation. When low levels of activities are counted, the MDA of gamma spectrometer must be comparable to the number of sample counts. In this r...

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Main Authors: Saleh Ashrafi, Tahereh Hadisinia
Format: Article
Language:fas
Published: Nuclear Science and Technology Research Institute 2014-11-01
Series:مجله علوم و فنون هسته‌ای
Subjects:
Online Access:https://jonsat.nstri.ir/article_44_91b225f9f1b6e1734406ab0237e8f075.pdf
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author Saleh Ashrafi
Tahereh Hadisinia
author_facet Saleh Ashrafi
Tahereh Hadisinia
author_sort Saleh Ashrafi
collection DOAJ
description The minimum detectable activity (MDA) is the activity that a system can detect with a given confidence level and good discrimination against the background radiation. When low levels of activities are counted, the MDA of gamma spectrometer must be comparable to the number of sample counts. In this research, the MDA of AT1315 spectrometer has been experimentally determined and a theoretical correlation between the MDA and experimental parameters such as the sample mass and counting time has been established. Using the correlation, the frequent and cumbersome MDA measurements can be avoided. A quantitative comparison of the theoretical and experimental MDA approaches has been performed.
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spelling doaj.art-8a623630dec043b3a89bff3867c6a6952023-05-02T10:30:49ZfasNuclear Science and Technology Research Instituteمجله علوم و فنون هسته‌ای1735-18712676-58612014-11-01353566144Determination of Minimum Detectable Activity (MDA) for AT1315 Gamma SpectrometerSaleh Ashrafi0Tahereh Hadisinia1گروه فیزیک هسته ای، دانشکده فیزیک، دانشگاه تبریز، صندوق پستی: 163-51665، تبریز ـ ایرانگروه فیزیک هسته ای، دانشکده فیزیک، دانشگاه تبریز، صندوق پستی: 163-51665، تبریز ـ ایرانThe minimum detectable activity (MDA) is the activity that a system can detect with a given confidence level and good discrimination against the background radiation. When low levels of activities are counted, the MDA of gamma spectrometer must be comparable to the number of sample counts. In this research, the MDA of AT1315 spectrometer has been experimentally determined and a theoretical correlation between the MDA and experimental parameters such as the sample mass and counting time has been established. Using the correlation, the frequent and cumbersome MDA measurements can be avoided. A quantitative comparison of the theoretical and experimental MDA approaches has been performed.https://jonsat.nstri.ir/article_44_91b225f9f1b6e1734406ab0237e8f075.pdfgamma spectrometerat1315minimum detectable activity (mda)
spellingShingle Saleh Ashrafi
Tahereh Hadisinia
Determination of Minimum Detectable Activity (MDA) for AT1315 Gamma Spectrometer
مجله علوم و فنون هسته‌ای
gamma spectrometer
at1315
minimum detectable activity (mda)
title Determination of Minimum Detectable Activity (MDA) for AT1315 Gamma Spectrometer
title_full Determination of Minimum Detectable Activity (MDA) for AT1315 Gamma Spectrometer
title_fullStr Determination of Minimum Detectable Activity (MDA) for AT1315 Gamma Spectrometer
title_full_unstemmed Determination of Minimum Detectable Activity (MDA) for AT1315 Gamma Spectrometer
title_short Determination of Minimum Detectable Activity (MDA) for AT1315 Gamma Spectrometer
title_sort determination of minimum detectable activity mda for at1315 gamma spectrometer
topic gamma spectrometer
at1315
minimum detectable activity (mda)
url https://jonsat.nstri.ir/article_44_91b225f9f1b6e1734406ab0237e8f075.pdf
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