Measurement of double-differential (n,{alpha}) cross sections of Fe, Ni, Cu, and {sup 50}Cr for 4.5 - 14.1 MeV neutrons

We have measured doubly-differential (n,x{alpha}) cross sections of Fe, Ni, Cu, {sup 50}Cr for 4.3 to 14.1 MeV neutrons using a high-efficiency gridded ionization chamber and obtained energy-angular distributions and integrated {alpha}-production cross sections.