(1) Institute of Materials Science, University of Tsukuba, Sakura-mura, 305 Ibaraki, Japan;(2) Meson Science Laboratory, Faculty of Science, University of Tokyo, Bunkyo-ku, 113 Tokyo, Japan
Abstract:
PulsedSR spectra were measured with surface+ in neutron irradiated aluminum as a function of specimen temperature above room temperature. It was found that the depolarization rate of+ increases and the precession frequency decreases as the specimen temperature is raised. This fact was attributed to the trapping of+ by radiation induced voids and suggests the importance of+-surface interactions in the case of voids.