2020年
12/11
開催
開催日時
2020/12/11 16:00〜17:30
開催場所
zoom
講演者
Katsuhisa Nishio (JAEA)
言語
日本語
詳細ページ
お問い合わせ
katsuro.nakamura@kek.jp
概要
Fission studies using multinucleon transfer (MNT) reaction [1-3] at the tandem facility of Japan Atomic Energy Agency (JAEA) in Tokai will be presented. The MNT reaction allows us to produce neutron-rich actinide nuclei, which cannot be populated by particle capture reactions. Taking advantage of many MNT channels opened in the 18O induced reactions, fission fragment mass distributions (FFMDs) for various actinide nuclei can be obtained in one reaction. Also, evolution of fission properties with excitation energy is obtained. Recently, we obtained 254Es (Z=99, T_{1/2}=276 days) material from Oak Ridge National Laboratory, US, to promote experiments on low-energy fissions in the neutron-rich fermium region, where dramatic change of the FFMD happens. Some results will be presented.
[1] R. Léguillon et al., Phys. Lett. B, 761, 125 (2016).
[2] K. Hirose et al., Phys. Rev. Lett. 119, 222501 (2017).
[3] M.J. Vermeulen et al., Phys. Rev. C, in print.