Reduced sputtering yields induced by fast neutrons

The reduced sputtering yield (Y-n(R)) of materials induced by fist neutron is presented. Based on the experimental Y-n(R) results for (n, 2n), (n, p), (n, alpha) and (n, np) reactions, the value of Y-n(R) for (n, non-elastic) reaction is deduced by using data of cross sections in JENDL-3.2 and ENDF/ B-VI. The value of Y-n(R) for (n, n) reaction is predicted by relation betw een Y-n(R) and the mean projected ranges of recoil nuclides. Combining both Y-n(R) for (n, n) and (n, non-elastic) reactions, the total Y-n(R) is obta ined. Systematics of Y-n(R) for (n, non-elastic), (n, n) and (n, total) rea ctions have been demonstrated.