The concept of a segmented fusion reactor blanket for actinide incineration

The actinide inventory and neutron damage to the first wall of fusion reactor-actinide burners can be reduced while implementing a segmented fissionable blanket. For 3-D isotope burnup calculations a new package of programs was developed on the basis of MORSE. The neutron damage to the outboard first wall is reduced to levels that occur in the inboard first wall i.e. 12 DPA for WLP of 1 MW/m2. Required actinide inventory of the segmented blanket is reduced by a factor of 6 when the depletion rate of actinides decreases by 20% as compared to the homogeneous blanket. (author)