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Liquid scintillation counters calibration stability over long timescales

Liquid scintillation spectrometry is widely used for the analysis of alpha and beta emitting radionuclides. Robust calibration of liquid scintillation (LS) spectrometers is fundamental to accurate LS measurement but at the same time is time consuming and costly, particularly if a wide range of radio...

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Detalles Bibliográficos
Autores principales: Gaca, Pawel, Warwick, Phillip E., Croudace, Ian W.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer Netherlands 2017
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5658465/
https://www.ncbi.nlm.nih.gov/pubmed/29104339
http://dx.doi.org/10.1007/s10967-017-5388-6
Descripción
Sumario:Liquid scintillation spectrometry is widely used for the analysis of alpha and beta emitting radionuclides. Robust calibration of liquid scintillation (LS) spectrometers is fundamental to accurate LS measurement but at the same time is time consuming and costly, particularly if a wide range of radionuclides are analysed by the laboratory. The frequency of the calibration varies in different laboratories and is based on many practical and operational factors. This work summarizes the observations regarding variations in 1220 Quantulus spectrometers efficiency calibrations performed annually using various radionuclides: (3)H (63)Ni, (55)Fe, (36)Cl, (45)Ca, (147)Pm, (241)Pu, (99)Tc for a period of 9 years and discusses the implication to calibration frequency.