Analysis of the cross section for {sup 232}Th photofission in the subbarrier energy region
- Institute of Physics and Power Engineering (Russian Federation)
A theoretical analysis of the most detailed experimental data on the subbarrier fission of {sup 232}Th is performed. The energy dependences of the components of the cross sections for photofission through specific channels characterized by the quantum numbers J{sup {pi}K} are obtained on the basis of previously measured total photofission cross sections and angular distributions of fission fragments. A theoretical analysis of the subbarrier photofission of {sup 232}Th is performed on the basis of the results obtained for these components. This analysis relies on the one-dimensional fission model within which one assumes a three-humped structure of the fission barrier and introduces damping in the second and third wells by including an imaginary part in the potential used. Values are selected for the parameters of the fission barriers and are compared with similar data from other studies. It is shown that the energy dependences of the photofission cross sections in question can be described adequately.
- OSTI ID:
- 21405908
- Journal Information:
- Physics of Atomic Nuclei, Journal Name: Physics of Atomic Nuclei Journal Issue: 6 Vol. 72; ISSN 1063-7788; ISSN PANUEO
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
74 ATOMIC AND MOLECULAR PHYSICS
ACTINIDE NUCLEI
ALPHA DECAY RADIOISOTOPES
ANGULAR DISTRIBUTION
CROSS SECTIONS
DATA
DISTRIBUTION
ENERGY
ENERGY DEPENDENCE
EVEN-EVEN NUCLEI
EXPERIMENTAL DATA
FISSION
FISSION BARRIER
FISSION FRAGMENTS
HEAVY NUCLEI
INFORMATION
ISOTOPES
NANOSTRUCTURES
NUCLEAR FRAGMENTS
NUCLEAR POTENTIAL
NUCLEAR REACTIONS
NUCLEI
NUMERICAL DATA
ONE-DIMENSIONAL CALCULATIONS
PHOTOFISSION
PHOTONUCLEAR REACTIONS
POTENTIAL ENERGY
POTENTIALS
QUANTUM NUMBERS
QUANTUM WELLS
RADIOISOTOPES
SPONTANEOUS FISSION RADIOISOTOPES
THORIUM 232
THORIUM ISOTOPES
YEARS LIVING RADIOISOTOPES