Determining the probability of locating peaks using computerized peak-location methods in gamma-ray spectra as a function of the relative peak-area uncertainty

The probabilities of locating peaks with a high relative peak-area uncertainty were determined empirically with nine types of peak-location software used in laboratories engaged in gamma-ray spectrometry measurements. It was found that it is not possible to locate peaks with a probability of 0.95, w...

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Detalles Bibliográficos
Autores: Ali Santoro, M. C., Anagnostakis, M. J., Boshkova, T., Camacho García, Antonia, Fornaciari Iljadica, M. C., Collins, S. M., Díaz Pérez, R., Delgado, J. U., Đurašavić, M., Duch, M. A., Elvira, V. H., Gomes, R. S., Gudelis, A., Gurau, D., Hurtado Bermúdez, Santiago José, Idoeta, R., Jevremović, A., Kandić, A., Korun, M., Karfopolous, K., Laubenstein, M., Long, S., Margineanu, R. M., Mitsios, I., Mulas, D., Nikolić, J. K., Pantelica, A., Peyres Medina, Virginia, Pibida, L., Potiriadis, C., Silva, R. L., Siri, S., Šešlak, B., Verheyen, L., Vodenik, B., Vukanac, I., Wiedner, H., Zorko, B.
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2020
País:España
Institución:Universidad de Sevilla (US)
Repositorio:idUS. Depósito de Investigación de la Universidad de Sevilla
OAI Identifier:oai:idus.us.es:11441/144532
Acceso en línea:https://hdl.handle.net/11441/144532
https://doi.org/10.1016/j.apradiso.2019.108920
Access Level:acceso abierto
Palabra clave:Gamma-ray spectrometry
Relative peak-area uncertainty
Peak location
Decision threshold
Descripción
Sumario:The probabilities of locating peaks with a high relative peak-area uncertainty were determined empirically with nine types of peak-location software used in laboratories engaged in gamma-ray spectrometry measurements. It was found that it is not possible to locate peaks with a probability of 0.95, when they have a relative peak-area uncertainty in excess of 50%. Locating peaks at these relatively high peak-area uncertainties with a probability greater than 0.95 is only possible in the library-driven mode, where the peak positions are supposed a-priori. The deficiencies of the library-driven mode and the possibilities to improve the probabilities of locating peaks are briefly discussed.

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