Published 1996 | Version v1
Report Open

Manifestation of clustering in the 252Cf(sf) and 249Cf(nth, f) reactions

Creators

  • 1. Moskovskij Inzhenerno-Fizicheskij Inst., Moscow (Russian Federation)
  • 2. Joint Inst. for Nuclear Research, Dubna (Russian Federation). Lab. of Theoretical Physics
  • 3. Joint Inst. for Nuclear Research, Dubna (Russian Federation). Lab. of Nuclear Reactions
  • 4. Forschungszentrum Rossendorf e.V. (FZR), Dresden (Germany)

Description

A comparative analysis of the mass-energy distribution of the fission fragments formed in 252Cf(sf) and 249Cf(nth,f) reactions is performed on the basis of the potential energy surface calculations. The available experimental and theoretical results give evidence for the existence of fission modes caused by clustering of the fissioning nuclei. A sharp drop of the proton odd-even effect is discovered at excitation energy in the scission point E*>40 MeV, which is presumable associated with the complete clusterization of the fissioning nucleus. 32 refs., 9 figs

Availability note (English)

MF available from INIS under the Report Number.

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Additional details

Publishing Information

Imprint Pagination
22 p.
Report number
JINR-E--15-96-365

INIS

Country of Publication
Joint Institute for Nuclear Research (JINR)
Country of Input or Organization
Joint Institute for Nuclear Research (JINR)
INIS RN
28069879
Subject category
S73: NUCLEAR PHYSICS AND RADIATION PHYSICS;
Descriptors DEI
CALIFORNIUM 249 TARGET; CALIFORNIUM 252; CLUSTER MODEL; ENERGY SPECTRA; EVEN-ODD NUCLEI; EXCITATION; FISSION FRAGMENTS; MASS DISTRIBUTION; POTENTIAL ENERGY; SPONTANEOUS FISSION
Descriptors DEC
ACTINIDE NUCLEI; ALPHA DECAY RADIOISOTOPES; CALIFORNIUM ISOTOPES; DECAY; DISTRIBUTION; ENERGY; ENERGY-LEVEL TRANSITIONS; EVEN-EVEN NUCLEI; FISSION; HEAVY NUCLEI; ISOTOPES; MATHEMATICAL MODELS; NUCLEAR DECAY; NUCLEAR FRAGMENTS; NUCLEAR MODELS; NUCLEAR REACTIONS; NUCLEI; RADIOISOTOPES; SPATIAL DISTRIBUTION; SPECTRA; SPONTANEOUS FISSION RADIOISOTOPES; TARGETS; YEARS LIVING RADIOISOTOPES

Optional Information

Notes
Submitted to Nuclear Physics. A.