Abstract
Charged-particle-induced fission has been studied using the JAERI tandem accelerator. Characteristics of the symmetric mass division process at high angular momentum are investigated in the region of relatively light mass systems: 37Cl + 68Zn and 16O + 89Y. Observed widths of the mass and total kinetic energy distributions are broader than those expected from the liquid drop model. Pre-scission 4He particles in coincidence with fission products are measured in the 19F+ 197Au reaction. The multiplicity of pre-scission 4He is explained by a statistical model calculation which takes into account the reduced emission barrier for 4He. The correlation between fragment mass and total kinetic energy distributions is studied in proton-induced fission of 232Th using a double velocity TOF spectrometer. The result suggests the presence of two kinds of scission point configurations.
Published Version
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