J.-C. Gauthier, et al.
J. Phys. IV France 133 (2006) 821-823
Sensitivity of Shallow Land Burial to neutron environment and activation cross sections in IFE thick-liquid conceptsO. Cabellos1, 2, 0, J. Sanz1, 3, S. Reyes4, J. Latkowski4 and N. García-Herranz2
1 Institute of Nuclear Fusion, UPM, Spain
2 Department of Nuclear Engineering, UPM, Spain
3 Department of Power Engineering, UNED, Spain
4 Livermore National Laboratory, LLNL, USA
A comprehensive assessment on the eligibility of reduced activation (RA) steels as structural chamber material in Inertial Fusion Energy (IFE) thick-liquid concepts is performed. As far as alloying elements, it is shown that the activation of tungsten is a question to debate. Regarding impurity elements, it is analyzed if they could question the possibility of obtaining real RA steels for shallow land burial (SLB). The effect of the thickness of the liquid wall on the SLB response of alloying and impurity elements is computed. And above all, we have estimated the impact of cross section uncertainties when addressing the former questions, and we identify those to be improved. The necessary improvement of some tungsten and niobium cross sections is justified.
© EDP Sciences 2006