The neutronic analysis for the ITER reference breeding blanket design

This paper provides an overview of the neutronic analyses performed during the design development of the ITER breeding blanket beginning in 1997, when the reference BB design was started to the present. In Section 2 optimisation studies for the initial boundary conditions are presented. In Section 3, the detailed three dimensional analyses that were performed are illustrated plus additional optimisation for new boundary conditions. It is shown that a TBR = 0.97 is achieved in the reference configuration for the ITER machine as described in the Final Design Report of the ITER Engineering Design Activity. (authors)