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Asymmetrical fission and statistical emission of complex fragments from the highly excited sup 47 V compound nucleus

Conference ·
OSTI ID:5437259
; ; ; ; ; ; ; ; ;  [1]; ; ; ;  [2]; ; ; ;  [3]
  1. Strasbourg-1 Univ., 67 (France). Centre de Recherches Nucleaires
  2. CEA Centre d'Etudes Nucleaires de Saclay, 91 - Gif-sur-Yvette (France)
  3. Oak Ridge National Lab., TN (United States
+ Show Author Affiliations
The properties of the fully damped (deep-inelastic and orbiting) and fusion (evaporation and fission) processes have been investigated in three entrance channels leading to the same {sup 47} V compound nucleus at high excitation energies. No entrance channel effect has been observed in either the evaporation residue or the fission-like yields in contrast to the {sup 28}Si + {sup 12}C and {sup 24}Mg + {sup 16}O reactions in which the orbiting process still persists. The asymmetrical elemental distributions of the fully energy relaxed fragments are well described by fusion-fission models based respectively on the scission point and saddle point pictures. Finally a general discussion of the competition between orbiting and fusion-fission mechanisms in light heavy-ion reactions is presented in the framework of their calculated available number of open channels.
Research Organization:
Oak Ridge National Lab., TN (United States)
Sponsoring Organization:
DOE; USDOE, Washington, DC (United States)
DOE Contract Number:
AC05-84OR21400
OSTI ID:
5437259
Report Number(s):
CONF-920140-1; ON: DE92011064
Country of Publication:
United States
Language:
English

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Related Subjects

663450* -- Heavy-Ion-Induced Reactions & Scattering-- (1992-)
663470 -- Fission-- (1992-)
663520 -- Nuclear Mass Ranges-- A=6-19-- (1992-)
663530 -- Nuclear Mass Ranges-- A=20-38-- (1992-)
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73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ANGULAR DISTRIBUTION
ASYMMETRY
BETA DECAY RADIOISOTOPES
BETA-PLUS DECAY RADIOISOTOPES
CARBON 12 TARGET
CHARGED-PARTICLE REACTIONS
CHLORINE 35 REACTIONS
COMPOUND NUCLEI
CROSS SECTIONS
DISTRIBUTION
ELECTRON CAPTURE RADIOISOTOPES
ENERGY SPECTRA
FISSION FRAGMENTS
HAUSER-FESHBACH THEORY
HEAVY ION REACTIONS
INTERMEDIATE MASS NUCLEI
ISOTOPES
MAGNESIUM 24 TARGET
MATHEMATICAL MODELS
MINUTES LIVING RADIOISOTOPES
NUCLEAR FRAGMENTS
NUCLEAR REACTIONS
NUCLEAR THEORY
NUCLEI
ODD-EVEN NUCLEI
RADIOISOTOPES
SODIUM 23 REACTIONS
SPECTRA
STATISTICAL MODELS
TARGETS
VANADIUM 47
VANADIUM ISOTOPES