Reduced Sputtering Yields Induced by Fast Neutrons

The reduced sputtering yield (y^R_n) of materials induced by fast neutron is presented. Based on the experimental y^R_n results for (n, 2n), (n, p), (n, α) and (n, np) reactions, the value of y^R_n 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^R_n for (n, n) reaction is predicted by relation between y^R_n and the mean projected ranges of recoil nuclides. Combining both y^R_n for (n, n) and (n, non-elastic) reactions, the total y^R_n is obtained. Systematics of y^R_n for (n, non-elastic), (n, n) and (n, total) reactions have been demonstrated.