Yield of near-target product interaction of 47 MeV/A12C ions with bismuth targets

Formation cross sections of near-target products from the reaction of 47MeV/A12C with209Bi targets have been measured. Their independent yields were obtained from their cumulative and partially cumulative yields according to the experimental data measured in this work and correction for mother-daughter decay. From the yield distribution curves of Pt, Au and Hg isotopes constructed it was found that for their peak positions at mass numbers A=188.1, 190.9 and 195.8, the widths of charge distributions are σ = 3.08, 2.80 and 3.74, respectively. The formation cross sections for some near-target neutron-rich new isotopes were extrapolated from the isotopic yield distribution curves.