Absolute cross sections for the 58,60Ni(16O,X) reactions
Abstract
The absolute cross sections for a variety of reactions resulting from bombardment of 58,60Ni with 38-, 42-, and 46-MeV 16O ions were determined from yields of γ rays observed from the decay of resulting radioactivities and from yields of in-beam γ rays. The strongest reactions are (16O,pn), (16O,2p), and (16O,αp). Other identified reactions are (16O,p), (16O,2n), (16O,α), (16O,αn), (16O,2α), (16O,2pn), (16O,3p), (16O,12C), and (16O,15N). At the higher projectile energies the total cross sections are in reasonable agreement with the reaction cross sections based on an optical-model calculation. The relative yields of the reaction products were compared to predictions for statistical decay of a compound-nuclear system by neutron, proton, and α-particle emission. This model does account for the general features of the experimental data; in particular it correctly predicts that charged-particle emission strongly competes with neutron emission. [NUCLEAR REACTIONS 58,60Ni(16O,X), E16O=38,42,46 MeV; measured Eγ, Iγ deduced σ(E). RADIOACTIVITY 74Br; measured Eγ, Iγ, T12.]
- Publication:
-
Physical Review C
- Pub Date:
- April 1974
- DOI:
- 10.1103/PhysRevC.9.1402
- Bibcode:
- 1974PhRvC...9.1402R