AN ASSOCIATED PARTICLE TOF SPECTROMETER AT CHIANG MAI
Fast Neutron Research Facility, Department of Physics,
Faculty of Science, Chiang Mai University
Chiang Mai 50002, Thailand
An associated alpha particle time-of-flight neutron spectrometer has been constructed using a 50 micron thick plastic scintillator and a 12.7 cm diam by 5.1 cm thick liquid scintillator. The neutron detector is housed in a massive shielding located at 3.34 m from the scattering sample. The experimental facility provides the capability of measuring scattered neutrons over the angular range from 15 to 155 deg.
Measurements of elastic and inelastic scattering cross sections for 14.1 MeV neutrons incident upon carbon are presented. The data are compared with the previous results of other investigators.
KEYWORDS: Fast neutron spectrometer, associated particle, time-of-flight, natural C, neutron-induced reactions