Speaker
Description
Over the last years, High-Current Accelerator-driven Neutron Sources (HiCANS) have attracted increasing interest and represent a promising option for the next generation of neutron sources. The High Brilliance Neutron Source (HBS) project, developed by the Jülich Centre for Neutron Science at Forschungszentrum Jülich, aims to provide an efficient HiCANS for various scattering, analytical and imaging applications in science and industry.
The shielding of the HBS-prototype target station has been developed and optimised with three key objectives: keeping the dose rates in the monitored areas of HBS well below the radiation protection limits, minimising background radiation from neutrons and gamma to ensure measurement sensitivity and reducing material activation to minimise decommissioning waste.
Neutron dose rates were measured at the JULIC neutron test platform, which was designed to test key components of the HBS. Additionally, dose rates obtained from Monte Carlo simulation using the PHITS code were found to agree reasonably with the experimental values. It demonstrates the effectiveness of the multilayered shielding of the target station design for HBS.
An analysis of the neutron dose rate distribution in the experimental hall will be presented. The dosimetry experiment and subsequent analysis, as well as the comparison with the measurements and Monte Carlo simulation, will be discussed.