Uncertainties in calculated correction factors for true coincidence-summing (TCS)
Artikel i vetenskaplig tidskrift, 2017

The aim of this work was to estimate the uncertainties in Monte Carlo calculated correction factors for true coincidence summing (TCS). In this work TCS-factors and their uncertainties were calculated for 134Cs and then the corrected activities compared to empirical data. The study was carried out using a close-end coaxial p-type detector (Ø80 mm×54.5 mm, 80% relative efficiency) and a cylindrical glass fiber sample (Ø60 mm×14 mm). It was shown that the uncertainty in the calculated correction factor for the primary gamma ray was below 0.5%, which means it will not contribute significantly to the combined uncertainty in an activity measurement for e.g. environmental monitoring.


J. Kastlander

Totalförsvarets forskningsinstitut (FOI)

L. E. De Geer

Totalförsvarets forskningsinstitut (FOI)

S. Jonsson

Totalförsvarets forskningsinstitut (FOI)

Henrik Ramebäck

Chalmers, Kemi och kemiteknik, Energi och material, Kärnkemi

Applied Radiation and Isotopes

0969-8043 (ISSN)

Vol. 122 174-179