Proposed methodology for shielding/activation evaluations in criticai and sub-critical MYRRHA-FASTEF equilibrium configurations

This work was carried out in the CDT/FASTEF EU FP7 project: it deals with the preliminary core design of MYRRHA-FASTEF, a 100 MW LBE cooled reactor (working in both critical and sub-critical modes) that should be able to demonstrate transmutation and associated technology. The report summarizes the presentation done by the author in the CDT/WP2 meeting on January 18- 20th, 2012, at the SCK-CEN research centre in Mol (B). In such work he showed briefly the proposed methodology for the preliminary shielding/activation analysis for MYRRHA-FASTEF: both the criticai (34.5 wt.% Epu) and sub-critical (30 wt.% Epu) mode have to be investigated by adopting (as a source) the corresponding equilibrium cores. Besides the pysical quantities to be evaluated (prompt and residual doses), the main points/directions of interest are clearly indicated.