Please use this identifier to cite or link to this item:
Title: The implications of particle energy and acidic media on gross alpha and gross beta determination using liquid scintillation
Author: Zapata García, Daniel
Llauradó i Tarragó, Montserrat
Rauret i Dalmau, Gemma
Keywords: Radó
Aigua potable
Escintil·ladors líquids
Drinking water
Liquid scintillators
Issue Date: 16-Dec-2011
Publisher: Elsevier Ltd
Abstract: The interaction of humans with radioactivity present in the environment from natural and artificial sources necessitates an evaluation of its risk on human health. Gross alpha and gross beta activities can provide a rapid evaluation of the radioactive content of a sample and can be simultaneously determined by using liquid scintillation counters. However, calibration of the liquid scintillation counter is required and is affected by many factors, such as particle energy and the acidity of the media. This study investigates what effect the particle energy used for calibration has on misclassification and how to account for this misclassification in routine measurements. The variability in measurement produced by the final pH, as well as any acids used in sample treatment, was also studied. These results showed that the most commonly used acid for these types of analyses, HNO3, produced a high amount of misclassifications at very low pH. The results improved when HCl was used to adjust the sample to low pH.
Note: Versió postprint del document publicat a:
It is part of: Applied Radiation and Isotopes, 2011, vol. 70, num. 4, p. 705-711
Related resource:
ISSN: 0969-8043
Appears in Collections:Articles publicats en revistes (Enginyeria Química i Química Analítica)

Files in This Item:
File Description SizeFormat 
606597.pdf560.94 kBAdobe PDFView/Open

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.