Activation analysis and evaluation of the radionuclide inventories, decay heat for European DEMO divertor components.

This work presents neutron flux calculation results and specific decay heat and activity for the European DEMO reactor divertor structure. Two DEMO 2017 models were used in calculations; one with a homogenised WCLL breeder blanket and the other with a homogenised HCPB breeder blanket. The neutron flux calculations were performed using MCNP6 code with JEFF 3.2 nuclear data. Activation and decay heat calculations were performed using the FISPACT-II code with TENDL - 2017 nuclear data library.

Dose rates and specific activities of Li2CO3 pellets and diamond detectors irradiated during TT and DTE2 campaigns at JET.

TT and DTE2 campaigns at JET are expected to produce large 14 MeV neutron fluxes that will enable the expansion of activation detection ranges. The calculation results of the activation and dose rates induced in Li2CO3 pellets and diamond detector materials are presented in this research. The MCNP code was used in order to produce corresponding neutron flux densities and spectra. The FISPACT code with the EAF-2010 library was used to estimate the activation and dose rates.