부산대학교 도서관

Neutron induced prompt gamma-ray spectroscopy (NIPS) system equipped with a (252)^Cf neutron source and a n-type coaxial HPGe detector was installed for the quantitative analysis of aqueous samples in KAERI, Korea. Since the thermal neutron flux for the (252)^Cf neutron source is relatively low compared to that for the reactor, the use of a thermal neutron reflector in the NIPS system may lead to improved results. The enhancement by using various reflectors was carried out by comparing the Cl peak with or without a cadmium plate between sample and the (252)^Cf source. The use of pyrolitic graphite as a reflector provided a good result.