Energetic photons from heavy-ion reactions at 4-12 MeV/u

Statistical emission is the main source of high-energy photons measured in heavy-ion reactions at projectile energies up to 5 MeV/mu, as it is shown for C-12 + (58,64) Ni reactions. At,higher projectile energies another important process occurs - the bremsstrahlung emission. Besides that, the Giant Dipole Resonance can be excited in hot nuclei produced not only via complete fusion reactions but also by incomplete fusion and/or after - preequilibrium emission of light particles. The importance of those processes is demonstrated for 12 C + (58,64) Ni and other reactions.