Abstract
A new approach to simultaneous helium and displacement damage production during fission reactor irradiations of Ti, V and Nb based alloys is presented. Helium is introduced by the beta decay of tritium which is produced during reactor irradiations by the 3He(n,p)3T reaction in the gas surrounding the test specimens. It is shown that helium production rates which are relevant for fusion reactor testing can be obtained. The proposed technique offers additional possibilities for using existing fission reactors for bulk irradiation testing with relevant He/dpa ratios, as well as for simulation of surface bombardment by fusion reactor plasma species.
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