In-beam fission study at JAEA

原子力機構におけるインビーム核分裂実験研究

西尾 勝久   

Nishio, Katsuhisa

In-beam fission study at the JAEA tandem facility is discussed. The first part in the presentation is the study for reaction mechanism of fusion-fission and quasifission in relation with heavy-element synthesis. Systematic measurement of fission-fragment mass distributions using U target nucleus have been carried out. With the help of a model calculation a method to determine the fusion probability is proposed. Recently, we developed a Cm target, and series of experiment involving Cm are planned to study fission for heavier elements. The second part of the presentation is the study for fission of neutron-rich nuclei. Multi-nuclear transfer reactions were used to populate wide variety of nuclei and their excited states. Langevin-type calculation was carried out to discuss the shell damping energy of the fissioning nuclei.