NUCLEAR DATA SENSITIVITY/UNCERTAINTY PRE-ANALYSIS OF FNG WCLL FUSION BENCHMARK

To assure tritium self-sufficiency in future fusion reactors such as DEMO the accuracy of TRP calculations has to be demonstrated within design uncertainties. A new neutronics experiment representing a mock-up Water Cooled Lithium Lead (WCLL) Test Blanket Module (TBM) is under preparation at Frascati neutron generator (FNG) with objective provide an experimental validation nuclear data and transport codes for production rate (TPR) calculations. The will consist LiPb bricks, EUROFER plates Perspex substituting water. irradiated by 14 MeV neutrons FNG facility, TPR detector reaction rates measured using Li2CO3 pellets activation foils placed different positions up about 55 cm inside mock-up. Computational pre-analyses WCLL SUSD3D sensitivity/uncertainty (S/U) code system described compared results some similar experiments performed past, particular HCPB Tritium Breeder Mock-up (2005) FNG-HCLL (2009). pre-analysis calculated responses including uncertainties due thus contributes optimisation set-up.