Mass distribution inF19induced fission ofTh

Charge and mass distribution in7Li induced fission of232Th

“…Table 2. Cumulative (C) and independent (I) formation cross sections of fission products in 7 Li induced fission of 232 Th. by an alpha particle will not be very much different from that induced by 7 Li and secondly, the 128m Sb is a low spin isomer and hence its contribution to the yield of 128 Sb is small.…”

“…In the *Author for correspondence (E-mail: avreddy@magnum.barc.ernet.in). present investigations, the formation cross sections of about 40 fission products have been determined at three 7 Li beam energies namely 41.9, 36.6 and 31.4 MeV. The measured data have been used to obtain charge and mass distribution parameters.…”

“…In the case of 19 F + 232 Th and 11 B + 232 Th systems, the transfer induced fission cross section constitutes a significant fraction of total fission cross section. 7 Li is a weakly bound projectile like 11 B and therefore, it is expected to have significant transfer reaction cross section. But, recent work of Zhao et al [9] indicates negligible transfer induced fission cross section in 7 Li + 232 Th system.…”

“…7 Li is a weakly bound projectile like 11 B and therefore, it is expected to have significant transfer reaction cross section. But, recent work of Zhao et al [9] indicates negligible transfer induced fission cross section in 7 Li + 232 Th system. In the *Author for correspondence (E-mail: avreddy@magnum.barc.ernet.in).…”

“…12 C, 16 O) has been found to be broad symmetric Gaussian [2,3]. On the other hand, the mass distribution in the fission following transfer reaction in such systems has been found to be asymmetric, resembling low energy fission of actinides [4][5][6][7]. At near barrier energies, transfer of a nucleon or a cluster of nucleons from projectile to target nucleus may result in the formation of target like nuclei having sufficient excitation energy to undergo fission.…”