MEASUREMENT AND ANALYSIS OF ALPHA-PARTICLE INDUCED REACTIONS ON GOLD

Stacked foil activation technique and Ge(Li) gamma ray spectroscopy ha ve been used for the measurement of excitation functions of Au-197(alp ha, xn) (x = 1 - 3), Au-197(alpha, 2pn) and Au-197(alpha, alpha n) rea ctions up to 50 MeV. The experimental cross-sections were compared wit h the predictions of pre-equilibrium hybrid model, as well as with the more recent index model. A general agreement was found in all reactio ns using initial exciton number n(0) = 4(4pOh) except for Au-197(alpha , n) reaction, where index model gives fairly good agreement with n(0) = 5(5pOh).