Direct determination of the complete-fusion cross section from the fission fragment angular distribution

Journal Article · Fri Apr 01 04:00:00 EST 1983 · Chin. Phys.; (United States)

OSTI ID:5905416

Liu, G X; Chen, K L; Ma, H F; Wang, S F; Cai, W

We have measured the angular distributions of fission fragments for a series of compound nuclei formed in the bombardment of /sup 181/Ta, W, Re, Pt, /sup 197/Au, Pb, and /sup 209/Bi by 72.7, 69.6, 67.4, 65.4, 63.4 and 61.4 MeV /sup 12/C ions with mica track detectors. The critical angular momentum l/sub cr/ can be determined directly from the statistical analysis of the fission fragment angular distribution corresponding to the fission events with full momentum transfer. The complete fusion cross sections sigma/sub fu/ were calculated on the basis of the sharp cutoff model. The results for l/sub cr/ obtained by this method were compared with those predicted by the R. Bass model. The published data on fission fragment angular distributions of /sup 14/N+Pb and /sup 12/C+/sup 238/U reactions were also analyzed by this method. The values of sigma/sub fu/ are found to be in good agreement with the direct complete fusion cross-section measurements.

• OSTI ID: 5905416
• Journal Information: Chin. Phys.; (United States), Journal Name: Chin. Phys.; (United States) Vol. 3:2; ISSN CHPHD
• Country of Publication: United States
• Language: English

Related Subjects

651826* -- Nuclear Properties & Reactions
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652026 -- Nuclear Properties & Reactions
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73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ANGULAR DISTRIBUTION
BISMUTH 209 TARGET
CARBON 12 REACTIONS
CHARGED-PARTICLE REACTIONS
COMPOUND NUCLEI
CROSS SECTIONS
DATA
DISTRIBUTION
ELEMENTS
ENERGY RANGE
EXPERIMENTAL DATA
FISSION
FISSION FRAGMENTS
FUSION REACTIONS
GOLD 197 TARGET
HEAVY ION REACTIONS
INFORMATION
LEAD
METALS
MEV RANGE
MEV RANGE 10-100
MOMENTUM TRANSFER
NITROGEN 14 REACTIONS
NUCLEAR FRAGMENTS
NUCLEAR REACTIONS
NUMERICAL DATA
PLATINUM
PLATINUM METALS
RHENIUM
TANTALUM 181 TARGET
TARGETS
TRANSITION ELEMENTS
TUNGSTEN
URANIUM 238 TARGET