Radiochemical investigations of fast neutron-induced low-yield nuclear reactions

Radiochemical separation methods for K, Mn, Cu, Ga, Sr, Y, Nb, Ag, I, Ce, Eu, Lu and Pt, employing precipitation, adsorption, distillation, solvent extraction or ion-exchange, as used in the investigations of rare nuclear reactions such as (n, t) and (n,³He) at 14. 6 MeV, are described. For studying the (n, t) reaction at 23 MeV a method for the vacuum extraction and “low-level” gas-phase counting of tritium is outlined. The measured nuclear reaction cross-section data are discussed briefly.