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Elastic scattering, transfer reactions, and fission induced by /sup 16/O ions on /sup 181/Ta and /sup 208/Pb

Journal Article · · Phys. Rev., C; (United States)
; ; ; ; ;
Total cross sections for the quasielastic and fission channels in reactions of /sup 16/O on /sup 181/Ta and /sup 208/Pb were measured as a function of the incident energy near the Coulomb barrier. For /sup 208/Pb, the fission and quasielastic components account for essentially all of the total reaction cross sections as deduced from the elastic scattering. However, for /sup 181/Ta, the fission and quasielastic components account for only about 25% of the total cross section as deduced from elastic scattering. The fission fragment angular distributions for /sup 208/Pb are analyzed with a simple statistical approach yielding an effective moment of inertia at the saddle point compatible with the liquid-drop-model prediction. Fission excitation functions for /sup 181/Ta are described reasonably well by a statistical evaporation code.
Research Organization:
Laboratory for Nuclear Science, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139
OSTI ID:
7120083
Journal Information:
Phys. Rev., C; (United States), Journal Name: Phys. Rev., C; (United States) Vol. 15:3; ISSN PRVCA
Country of Publication:
United States
Language:
English

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Related Subjects

651825* -- Nuclear Properties & Reactions
A=150-189
Experimental-- Nuclear Reactions & Scattering-- (-1987)
651826 -- Nuclear Properties & Reactions
A=150-189
Experimental-- Spontaneous & Induced Fission-- (-1987)
651925 -- Nuclear Properties & Reactions
A=190-219
Experimental-- Nuclear Reactions & Scattering-- (-1987)
651926 -- Nuclear Properties & Reactions
A=190-219
Experimental-- Spontaneous & Induced Fission-- (-1987)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ANGULAR DISTRIBUTION
CHARGED-PARTICLE REACTIONS
CROSS SECTIONS
DIRECT REACTIONS
DISTRIBUTION
ELASTIC SCATTERING
ENERGY RANGE
EVAPORATION MODEL
EXCITATION FUNCTIONS
FISSION
FISSION FRAGMENTS
HEAVY ION REACTIONS
KINETICS
LEAD 208 TARGET
LIQUID DROP MODEL
MATHEMATICAL MODELS
MEV RANGE
MEV RANGE 10-100
MOMENT OF INERTIA
NUCLEAR FRAGMENTS
NUCLEAR MODELS
NUCLEAR REACTION KINETICS
NUCLEAR REACTIONS
ONE-NUCLEON TRANSFER REACTIONS
OPTICAL MODELS
OXYGEN 16 REACTIONS
QUASI-ELASTIC SCATTERING
QUASI-FREE REACTIONS
REACTION KINETICS
SCATTERING
STATISTICAL MODELS
TANTALUM 181 TARGET
TARGETS
TRANSFER REACTIONS