Neutron emission in the reaction /sup 165/Ho + /sup 56/Fe at E/sub lab/ = 8. 5 MeV/u

Journal Article · Wed Aug 01 04:00:00 EDT 1979 · Phys. Rev., C; (United States)

DOI:https://doi.org/10.1103/PhysRevC.20.576· OSTI ID:5977261

Hilscher, D; Birkelund, J R; Hoover, A D; Schroeder, W U; Wilcke, W W; Huizenga, J R; Mignerey, A C; Wolf, K L; Breuer, H F; Viola, Jr, V E

Neutron emission and ..cap alpha..-particle emission in the /sup 165/Ho + /sup 56/Fe reaction have been measured for the damped-collision and fusion-fission components of this reaction at a bombarding energy of 8.5 MeV/u. The c.m. neutron energy spectra for damped collisions indicate equal temperatures for the light and heavy fragments, a result consistent with the equilibration of the excitation energy during the interaction time. Pre-equilibrium neutron emission is found to contribute less than 5%. An out-of-plane neutron anisotropy A/sub 2/ = 0.2 +- 0.1 is found. The measured ratios of the neutron multiplicities for the light and heavy fragments suggest a rapid approach of the fragment N/Z ratios during the collision to that corresponding to minimum potential energy of the composite system.

• Research Organization: Departments of Chemistry and Physics, University of Rochester, Rochester, New York 14627
• OSTI ID: 5977261
• Journal Information: Phys. Rev., C; (United States), Journal Name: Phys. Rev., C; (United States) Vol. 20:2; ISSN PRVCA
• Country of Publication: United States
• Language: English

Related Subjects

651825* -- Nuclear Properties & Reactions
A=150-189
Experimental-- Nuclear Reactions & Scattering-- (-1987)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ALPHA SPECTRA
ASYMMETRY
CHARGED-PARTICLE REACTIONS
COMPOUND-NUCLEUS REACTIONS
CROSS SECTIONS
EMISSION
ENERGY RANGE
ENERGY SPECTRA
FISSION
FRAGMENTATION
FUSION REACTIONS
HEAVY ION REACTIONS
HOLMIUM 165 TARGET
IRON 56 REACTIONS
MEV RANGE
MEV RANGE 100-1000
MULTIPLICITY
NEUTRON EMISSION
NEUTRON SPECTRA
NUCLEAR REACTIONS
NUCLEAR TEMPERATURE
PRECOMPOUND-NUCLEUS EMISSION
SPECTRA
TARGETS