Comparison of various parametrizations of the double-humped fission barrier

Journal Article · Mon Jul 01 00:00:00 EDT 1991 · Physical Review, C (Nuclear Physics); (USA)

DOI:https://doi.org/10.1103/PhysRevC.44.292· OSTI ID:5607387

Bhandari, B S; Khaliquzzaman, M ^[1]

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1. Physics Department, Faculty of Science, University of Garyounis, Benghazi, Libya (LY)

The double-humped potential barriers in actinide nuclei in the fission direction have been parametrized using three different procedures, namely, the smoothly joined parabolic segments, third-degree polynomials passing through and with zero slopes at the successive extremum points, and straight-line segments connecting the successive extremum points. The fission penetrabilities through the barriers and the ground-state spontaneous fission half-lives for a wide variety of 25 actinide nuclides have been calculated for these different parametrizations. Our results clearly indicate that while the third-degree polynomial and the straight-line parametrizations of the double-humped fission barrier lead to approximately similar results on the fission penetrability and fission half-lives, the corresponding results using the smoothly joined parabolic segment parametrization differ significantly by almost two to five orders of magnitude depending on the specific type of the fissioning nucleus and on the parameters of its corresponding double-humped fission barrier.

• OSTI ID: 5607387
• Journal Information: Physical Review, C (Nuclear Physics); (USA), Vol. 44:1; ISSN 0556-2813
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ACTINIDE NUCLEI
FISSION BARRIER
CROSS SECTIONS
HALF-LIFE
POLYNOMIALS
SPONTANEOUS FISSION
DAYS LIVING RADIOISOTOPES
DECAY
FISSION
FUNCTIONS
HEAVY NUCLEI
ISOTOPES
NUCLEAR DECAY
NUCLEAR POTENTIAL
NUCLEAR REACTIONS
NUCLEI
POTENTIALS
RADIOISOTOPES
YEARS LIVING RADIOISOTOPES
653006* - Nuclear Theory- Spontaneous & Induced Fission