Journal
APPLIED RADIATION AND ISOTOPES
Volume 171, Issue -, Pages -Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.apradiso.2021.109644
Keywords
ESS; Neutron activation; Concrete activation; MCNP; Neutron shielding; Cinder
Categories
Funding
- European Union's Horizon 2020 research and innovation program [654000]
- National Research, Development and Innovation Fund of Hungary [NN 127102]
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The study investigated the composition and trace element concentrations of three concrete types considered for use in the European Spallation Source (ESS) ERIC. Realistic input data were developed for these materials, containing parent elements of dominant radioisotopes, and validated against measured data from neutron irradiation experiments.
The neutron activation of shielding materials and the generated decay gamma radiation are well-known issues in terms of occupational exposure. Though the trace elements of shielding concretes can be dominant sources of the produced activity in such cases, their concentrations are often missing from the input data of shielding-related Monte Carlo simulations. For this reason, three concrete types were studied, that were considered in the European Spallation Source (ESS) ERIC. Their composition - including the trace elements - were determined via XRF, PGAA and NAA techniques. Realistic input data were developed for these materials, containing the parent elements of all the dominant radioisotopes, and were validated against measured data of neutron irradiation experiments.
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