Excitation energy deposition in 209Bi(α,α') reactions at 240 MeV

The energy deposition associated with inelastic α particle scattering on 209Bi at 240 MeV has been determined using the TAMU neutron ball. A comparison of the reconstructed average excitation energies with the beam energy losses demonstrates that only part of the missing beam energy is usually deposited as thermal excitation in the target nucleus. Requiring an additional coincidence with a light charged particle or fission fragment leads to selection of a significant higher average excitation energy. copyright 1998 The American Physical Society