The Measurement of (n,p) and (n,γ) Reaction Cross-Section in the Energy Range Between 2 Mev and 5 Mev

Abstract

The cross-sections of the reactions for 27Al(n,p)27mg,  47Ti(n,p)47Sc, 58Ni(n,p) 58Co, 115In(n,γ)116mlIn, and 197Au(n,γ)198Au have been measured in the energy range between 2 MeV and 5 MeV. The D(d,n)3He reaction was used as a neutron source to irradiate the samples. The number of neutrons emitted from this reaction was monitored by counting the number of protons emitted from the competing D(d,p)3H reaction. The protons were counted by using a silicon surface barrier detector. The activity induced in the sample after irradiation was measured by using a '7.6 cm × 7.6 cm' NaI(Tl) detector. The cross-section measurements have been tabulated as a function of neutron energy, paying attention to the uncertainties in the experimental measurements and the spread in the mean neutron energies quoted. The values in the present work are compared with those obtained by other workers, and with the values deduced from theoretical calculation.