Systematic influences on the areas of peaks in gamma-ray spectra that have a large statistical uncertainty
A method is presented for calculating the expected number of counts in peaks that have a large relative peak-area uncertainty and appear in measured gamma-ray spectra. The method was applied to calculations of the correction factors for peaks occurring in the spectra of radon daughters. It was shown...
| Autores: | , , , , |
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| Tipo de recurso: | artículo |
| Fecha de publicación: | 2018 |
| País: | España |
| Institución: | Universitat Politècnica de Catalunya (UPC) |
| Repositorio: | UPCommons. Portal del coneixement obert de la UPC |
| Idioma: | inglés |
| OAI Identifier: | oai:upcommons.upc.edu:2117/117453 |
| Acceso en línea: | https://hdl.handle.net/2117/117453 https://dx.doi.org/10.1016/j.apradiso.2017.06.016 |
| Access Level: | acceso abierto |
| Palabra clave: | Gamma ray spectrometry Gamma-ray spectrometry Systematic influence Peak area Relative uncertainty Correction factors Espectrometria de raigs gamma Àrees temàtiques de la UPC::Física::Electromagnetisme Àrees temàtiques de la UPC::Física::Electromagnetisme::Raigs gamma |
| Sumario: | A method is presented for calculating the expected number of counts in peaks that have a large relative peak-area uncertainty and appear in measured gamma-ray spectra. The method was applied to calculations of the correction factors for peaks occurring in the spectra of radon daughters. It was shown that the factors used for correcting the calculated peak areas to their expected values decrease with an increasing relative peak-area uncertainty. The accuracy of taking the systematic influence inducing the correction factors into account is given by the dispersion of the correction factors corresponding to specific peaks. It was shown that the highest accuracy is obtained in the peak analyses with the GammaVision and Gamma-W software. |
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