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Study on quench effects in liquid scintillation counting during tritium measurements |
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| Authors: | Ivana Jakonić Jovana Nikolov Nataša Todorović Branislava Tenjović Miroslav Vesković |
| Institution: | 1. Faculty of Technical Sciences, University of Novi Sad, Novi Sad, Serbia 2. Department of Physics, Faculty of Sciences, University of Novi Sad, Novi Sad, Serbia 3. Department of Chemistry, Faculty of Sciences, University of Novi Sad, Novi Sad, Serbia |
| Abstract: | 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 3H. 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). |
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