Abstract

To provide accurate double differential neutron emission cross sections of fusion reactor candidate elements at En = 14 MeV, a fixed 8.3 m TOF facility with an NE213 detector of 25.4 cm diameter was installed in the 85° direction of a pulsed D-T source. Detail of scattering experiment using this facility is described. Energy resolution is ± 0.21 MeV at 14 MeV and good counting statistics is attained by about 1/h run using a cylindrical sample of 3 cm in diameter and 7 cm long. Measurements of double differential neutron emission cross sections are carried out for C, F, Mg, Al, Si, V, Cu and Pb. Results are compared with evaluated neutron emission data. Energy resolution is sufficient enough to deduce partial angular differential cross sections for elastic and discrete inelastic scatterings.

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