The effect of low-energy neutrons on activation cross-section measurements
was analyzed carefully and proved by the measured neutron spectra of T(d, n
)He-4 and D(d, n)He-3 reactions. The Ni-58(n, p)Co58m+g and Zn-64(n,p)Cu-64
reactions were used to confirm this analysis, and their cross sections wer
e measured accurately. In addition, their evaluated excitation functions ar
e given.