The Dependence of Neutron-Induced Radioactivity in Fusion Reactors on Geometric Design Parametersa

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Abstract
Although the neutron-induced activation in a fusion reactor is a non-linear problem whose solution requires the use of neutron transport codes and neutron activation and decay codes, a number of simple arguments can be made which give useful scaling laws for the total radioactivity in a fusion reactor (these were reported earlier in Ref. 1). Because these laws rely heavily on assumptions of linearity and the smallness of second-order effects, we have compared them to the results of computer experiments designed to investigate their validity over the range of operating parameters typical of fusion reactors. The parameters that were varied for comparison of activation and decay were In addition, we have investigated

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