The measurement of partial capture cross sections for neutron energies above 10 keV

Abstract

A large Nal detector has been used to demonstrate the feasibility of measuring partial capture cross sections for neutron energies from 10 to 100 keV. The pulsed neutron source was a 3 MeV accelerator and the 7Li(p,n) reaction with a time resolution of 3 to 4 ns and flight paths of 0.6 to 1.5 m. The experimental techniques are described, and illustrated by results for high energy transitions following capture in 48Ti, 56Fe, 56Ni and 207Pb.