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Systematic analysis of fission cross sections of uranium and plutonium isotopes

Conference ·
OSTI ID:62162
;  [1]; ;  [2]
  1. Center of Applied Studies for Nuclear Development, Havana (Cuba)
  2. Institute of Nuclear Sciences and Technology, Havana (Cuba)
Neutron induced fission cross section of 10 actinide nuclei is analyzed in terms of the double humped fission barrier model to deduce the barrier heights. Good fits were obtained by assuming the inner barrier axially-asymmetric and the outer one mass asymmetric. The obtained values of barrier heights are compared to other results. Systematic trends were observed in the barrier heights of the isotopes studied, their isotopical dependence presents the odd-even fluctuations. The difference E{sub A}-E{sub B} with increasing of neutron number is also analyzed. The level density is calculated in the frame of Semimicroscopical Combined Method (SCM) for all extreme points of fission path.
OSTI ID:
62162
Report Number(s):
CONF-940507--Vol.2
Country of Publication:
United States
Language:
English

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