Here we report PHITS Monte Carlo simulations of a LaBr3(Ce) gamma spectroscopy system used in unmanned helicopter radiation surveys in Fukushima Prefecture. The simulated spectra were verified against measurements taken under controlled laboratory conditions. Simulations were used to characterize the peak-to-Compton method for estimating the vertical distribution of radiocesium in soil from airborne surveys.
A. Malins, K. Ochi, T. Nakasone, T. Yamada, M. Machida, H. Kurikami, K. Satio & Y. Sanada
In conference proceedings for the 2018 Fall Meeting of the Atomic Energy Society of Japan
5-7 September 2018, Okayama University, Okayama, Japan