2020
12/11
OPEN
Date
2020/12/11（Fri）16:00〜17:30
Venue
zoom
Speaker
Katsuhisa Nishio (JAEA)
Language
English
Contact
katsuro.nakamura@kek.jp
Overview
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.