Measured Neutron Parameters for Phase I Experiments at the FNS Facility

Neutron parameters were measured in Phase-I experiments of JAERI/USDOE collaborative program. A brief description of the experimental systems and measuring techniques is given. The range of measured source neutron spectrum is from a few keV to 16 MeV by the use of proton-recoil counters and a small NE213 spectrometer. Tritium production rates were measured by on-line and integral type techniques. The in-system scalar spectra were measured by the NE213 spectrometer. Foil activation method was applied to obtain the reaction rate distributions.