Implementation of calculation codes in gamma spectrometry measurements for corrections of systematic effects
Artikel i vetenskaplig tidskrift, 2015

Four calculation codes were implemented on experimental data to calculate corrections of common systematic effects within high resolution gamma spectrometry. The detector parameters were sparsely optimized to imitate the usage that can be expected from personnel with limited experience. The transfer of the efficiency from the calibration geometry (60 ml, density 1.0 g/cm(3)) to 200 ml geometry (density 1.5 g/cm(3)) failed with all codes, which was discouraging. However, a majority of the other corrected activities deviated with less than 10 % from the reference activity values, even for density corrections or when corrections had been calculated for new source-detector-geometries. Smaller deviations, around 5 % or less, were achieved when corrections were done within the calibrated geometry. This shows a robustness of the calculation codes even if the in-data is not perfectly optimized.

Simulation

Efficiency transfer

Coincidence summing

Gamma-ray spectrometry

Systematic effects

Författare

S. Jonsson

Totalförsvarets forskningsinstitut (FOI)

T. Vidmar

Belgian Nuclear Research Center

Henrik Ramebäck

Chalmers, Kemi och kemiteknik, Energi och material, Kärnkemi

Journal of Radioanalytical and Nuclear Chemistry

0236-5731 (ISSN) 1588-2780 (eISSN)

Vol. 303 3 1727-1736

DOI

10.1007/s10967-014-3748-z