A comparative study of color quenching correction methods for Cerenkov counting

S Tsroya; O Pelled; U German; E Katorza; A Abraham; Z B Alfassi

doi:10.1016/j.apradiso.2011.10.002

A comparative study of color quenching correction methods for Cerenkov counting

Appl Radiat Isot. 2012 Feb;70(2):397-403. doi: 10.1016/j.apradiso.2011.10.002. Epub 2011 Oct 19.

Authors

S Tsroya¹, O Pelled, U German, E Katorza, A Abraham, Z B Alfassi

Affiliation

¹ Nuclear Research Center Negev, Beer Sheva, Israel.

PMID: 22041298
DOI: 10.1016/j.apradiso.2011.10.002

Abstract

The color quenching correction for Cerenkov counting is normally based on indexes defined for liquid scintillation spectra. Because of the differences in the spectrum shapes, these indexes are not optimal, and a different method was proposed based on the integral counting of the external (152)Eu source spectra of a 1200 Quantulus system. We have shown that this method, named ESAR (external source area ratio), is superior to all the other correction methods, offering the highest sensitivity and the widest range of application.