Classical trajectory model of heavy ion fusion and an experimental study of momentum transfer in fission reactions of 292 MeV /sup 20/Ne on /sup 165/Ho, /sup 181/Ta, /sup 197/Au, /sup 209/Bi, and /sup 238/U

Thesis/Dissertation · Sat Jan 01 04:00:00 EST 1983

OSTI ID:6654385

Tubbs, L E

Currently available data for fusion excitation functions over a wide mass range are compared with a classical dynamical model based on the proximity nuclear potential of Blocki et al., the Coulomb potential of Bondorf et al., and one-body nuclear friction in Randrup's proximity formalism. Using these conservative and dissipative forces and the radial parameters of Myers, good agreement is obtained in general between the theoretical excitation functions and the available data. Calculations to test the sensitivity of the calculated fusion cross sections to parameters such as the radial dependencies of the Coulomb and nuclear potentials, the radial and tangential friction form factors and the target and projectile radii are made. Evidence for the existence of reactions where the target and projectile come together and produce a fusion-like end product but without complete transfer of momentum is reviewed and a variety of possible mechanism that have been proposed are described. Correlation measurements of the fission fragments from 292 MeV /sup 20/Ne on /sup 165/Ho, /sup 181/Ta, /sup 197/Au, /sup 209/Bi, and /sup 238/U were made. This experiment was designed to look for evidence of incomplete momentum transfer fusion events followed by fission. The data show significant components from this type of event. Analysis was made to discover the relative probabilities for complete momentum transfer and various degrees of incomplete momentum transfer events.

• Research Organization: Rochester Univ., NY (USA)
• OSTI ID: 6654385
• Country of Publication: United States
• Language: English

Related Subjects

651815* -- Nuclear Properties & Reactions
A=150-189
Theoretical-- Nuclear Reactions & Scattering-- (-1987)
651915 -- Nuclear Properties & Reactions
A=190-219
Theoretical-- Nuclear Reactions & Scattering-- (-1987)
652015 -- Nuclear Properties & Reactions
A=220 & above
Theoretical-- Nuclear Reactions & Scattering-- (-1987)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BISMUTH 209 TARGET
CHARGED-PARTICLE REACTIONS
CORRELATED-PARTICLE MODELS
CORRELATION FUNCTIONS
CROSS SECTIONS
DATA
EXCITATION FUNCTIONS
FISSION
FISSION FRAGMENTS
FUNCTIONS
FUSION REACTIONS
GOLD 197 TARGET
HEAVY ION REACTIONS
HOLMIUM 165 TARGET
INCOMPLETE FUSION REACTIONS
INFORMATION
KINETICS
MATHEMATICAL MODELS
MOMENTUM TRANSFER
NEON 20 REACTIONS
NUCLEAR FRAGMENTS
NUCLEAR MODELS
NUCLEAR REACTION KINETICS
NUCLEAR REACTIONS
NUMERICAL DATA
PARTICLE MODELS
PROBABILITY
REACTION KINETICS
TANTALUM 181 TARGET
TARGETS
THEORETICAL DATA
URANIUM 238 TARGET