EURISOL-DS Multi‐MW Target: Radiological Protection, Radiation Safety and Shielding Aspects

The objective of this work was to carry out a detailed study and analysis of all aspects related to
radioprotection and radiation safety of the spallation target area and the whole spaces reserved
for the fission targets and spallation target maintenance. Operational and no‐operational
conditions were considered for an evaluation of the radiation safety conditions.
An analysis of the proposed shielding dimensions and configuration was performed for the
system during operation time. Parameters as activation, dose rate, energy deposition, etc. are
more important for the no‐operation period, in order to evaluate the hazard level and
determine the staff access type to the maintenance areas (direct or remote control).
Such elements as the fission targets and the whole structure involved on it were studied in more
detail because of the disposal issues, after operation. Activation, dose rate and residual nuclides
were studied for each element of the assembly. All parameters were analyzed according to their
time evolution after the shutdown of the facility.
The studies were carried out using the state‐of‐the‐art Monte Carlo programs FLUKA and
MCNPX.