The (n, α) and (n, p) reactions in silicon and the (n, p)reaction in aluminium at energies up to 5·6 MeV

Abstract Cross-sections are given for the n , p and n , α reactions in silicon and the n , p reaction in aluminium at energies up to 5·6 MeV. The silicon measurements were made using a silicon semiconductor detector as the target and detector, and the aluminium measurements were made by β-counting the 27 Mg activity produced in aluminium foils. The results are compared with previous measurements. It is shown that in measuring excitation functions in this energy region, the use of a silicon semiconductor detector is a convenient method of measuring the incident neutron energy.