Results of the CCRI(II)-S12.H-3 supplementary comparison: comparison of methods for the calculation of the activity and standard uncertainty of a tritiated-water source measured using the LSC-TDCR method

A comparison of calculations of the activity of a 3H2O liquid scintillation source using the same experimental data set collected at the LNE-LNHB with a triple-to-double coincidence ratio (TDCR) counter was completed. A total of 17 laboratories calculated the activity and standard uncertainty of the LS source using the files with experimental data provided by the LNE-LNHB. The results as well as relevant information on the computation techniques are presented and analysed in this paper. All results are compatible, even if there is a significant dispersion between the reported uncertainties. An output of this comparison is the estimation of the dispersion of TDCR measurement results when measurement conditions are well defined. © 2017 Elsevier Ltd.

Keywords

Liquid scintillators, Tritium, Calculation methods, Water, Dispersions, Data, Algorithms

Citation

Cassette, P., Altzitzoglou, T., Antohe, A., Rossi, M., Arinc, A., Capogni, M., Galea, R. Gudelis, A., Kossert, K., Lee, K. B., Liang, J., Nedjadi, Y., Oropesa Verdecia, P., Shilnikova, T., van Wyngaardt, W., Ziemek, T., & Zimmerman, B. (2018). Results of the CCRI(II)-S12.H-3 supplementary comparison: comparison of methods for the calculation of the activity and standard uncertainty of a tritiated-water source measured using the LSC-TDCR method. Applied Radiation and Isotopes, 134, 257-262. doi:10.1016/j.apradiso.2017.07.007