Abstract
Fission product yield studies in the reaction of 99.2 MeV 19F with 209Bi have been carried out for the first time using gamma-ray spectrometry. The cross sections for the production of fission products have been determined. The yield distribution of fission products was found to be symmetric and broad with FWHM around 22 mass units and peak near mass 111. The average number of neutrons emitted per fission has been found to be around 6.7. The comparison of the fission products yield distribution of 209Bi using projectiles like 4He, 12C, 16O, and 19F have shown that the mass of symmetric peak increases as the mass of the compound nucleus increases. The high fission yield around mass 112 has been attributed to the presence of deformed neutron shells. The total fission cross section and width of the mass distribution have been found to be low in case of 16O induced fission as compared to the 4He, 12C, and 19F induced fission of 209Bi.
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