Activation of the soil surrounding the ESS accelerator tunnel calculated by the MARS15 code is presented. A detailed composition of the soil, that comprises about 30 different chemical elements, is considered. Spatial distributions of the produced activity are provided in both transverse and longitudinal direction. A realistic irradiation profile for the entire planned lifetime of the facility is used. The nuclear transmutation and decay of the produced radionuclides is calculated with the DeTra code which is a built-in tool for the MARS15 code. Radionuclide production by low-energy neutrons is calculated using the ENDF/B-VII evaluated nuclear data library. In order to estimate quality of this activation assessment, a comparison between calculated and measured activation of various foils in a similar radiation environment is presented.
@article{arxiv.1801.03971,
title = {Activation assessment of the soil around the ESS accelerator tunnel},
author = {I. L. Rakhno and N. V. Mokhov and I. S. Tropin and D. Ene},
journal= {arXiv preprint arXiv:1801.03971},
year = {2018}
}
Comments
20 pp. Presented at the 4th International Workshop on Accelerator Radiation Induced Activation (ARIA'17) held at the European Spallation Source (ESS) on May 22-24, 2017 in Lund, Sweden