A Determination of theS32(n,p)P32Cross Section for Neutrons Having Energies of 1.6 to 5.8 Mev

Abstract

Sulfur was irradiated with known fluxes of monoenergetic neutrons having energies of 1.6 to 5.8 Mev. The formation of ${\mathrm{P}}^{32}$ by the ${\mathrm{S}}^{32}\mathrm{}(n,p)\mathrm{}{\mathrm{P}}^{32}$ reaction was detected by means of the ${\mathrm{P}}^{32}$ beta-activity. The cross section for the reaction at the lower neutron energies has the same form as the penetrability of the protons from the reaction through the Coulomb barrier. At the higher energies the cross section for the reaction reaches an approximately constant value of 0.3 × ${10}^{-24\mathrm{}}$ ${\mathrm{cm}}^2$.