Pre-equilibrium deexcitation process for the 164Dy(α, xnγ) reaction at Eα =90 MeV was studied by means of γ-γ and neutron-γ coincidence method. Properties of the preequilibrium phase were deduced as a function of the neutron multiplicity x. The reaction process was analyzed in terms of the two-phase deexcitation process, the pre-equilibrium phase with the energy parameter (quasi-temperature) of kTp =5 MeV and the equilibrium phase with the temperature of kTe =1.2 MeV. Angular momenta removed by the decaying neutrons at the pre-equilibrium and equilibrium phases, together with the data of the γ-ray multiplicity, account for the angular momenta introduced by the projectile.
- NUCLEAR REACTION Dy(±, xnγ) Er, x=4-8, E=90 MeV
- measured E, I, M, σ(E, θ), M, deduced preequilibrium properties, angular momentum removal, enriched targets, Ge(Li), NaI, NE 213
ASJC Scopus subject areas
- Physics and Astronomy(all)