Study of thermal neutron capture in sulphur

The 32S(n, γ)33S reaction has been studied using a Ge(Li) and a Ge(Li)NaI(TI) spectrometer. The principal aim was to establish a set of accurate energies for high-energy gamma-ray standards. In order to employ energy loops for consistency checks, a coincidence experiment was also conducted. The neutron separation energy was determined to be 8646 ± 1 keV for 33S and 6988 ± 2 keV for 35S and the energies of virtually all the transitions observed are accurate to 2 keV. The two parameter coincidence experiment revealed the presence of a strong 4640-2348 keV cascade belonging to the 34S(n, γ)35S reaction.