Radiation Source Terms and Fields Assessment at the T-15MD Facility

In view of the forthcoming commissioning and start-up of the reconstructed T-15MD tokamak, the radiation fields and dose distributions near the facility and outside of it are reassessed for the current design based on the analysis performed for the previous design modifications. Two modes of operation accompanied by neutron and gamma-radiation emission are considered: acceleration mode (generation of accelerated runaway electrons during current decay in low-density plasma) and deuterium mode. The assessed self-consistent system of plasma and nuclear radiation parameters can be used further for planning of experimental programs that meet the requirements of radiation safety. Recommendations for improving radiation protection when planning an expanded program of experiments with deuterium at subsequent stages of the project are given.