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2847819 
Journal Article 
Study on quench effects in liquid scintillation counting during tritium measurements 
Jakonic, I; Nikolov, J; Todorovic, N; Tenjovic, B; Veskovic, M 
2014 
Yes 
Journal of Radioanalytical and Nuclear Chemistry
ISSN: 0236-5731
EISSN: 1588-2780 
302 
1 
253-259 
WOS:000342134800030 
Quench effects can cause a serious reduction in counting efficiency for a given sample/cocktail mixture in liquid scintillation counting (LSC) experiments. This paper presents a simple experiment performed in order to test the influence of quenching on the LSC efficiency of H-3. The aim of this study was to investigate the behavior of several quench agents with different quench strengths (nitromethane, nitric acid, acetone, dimethyl-sulfoxide) added in different amounts to tritiated water in order to obtain standard sets for quench calibration curves. The OptiPhase HiSafe 2 and OptiPhase HiSafe 3 scintillation cocktails were used in this study in order to compare their quench resistance. Measurements were performed using a low-level LS counter (Wallac, Quantulus 1220). 
Standard quench parameter [SQP(E)]; Tritium measurements; Liquid scintillation counting; Scintillation cocktail