Experimental fission study using multi-nucleon transfer reactions

Katsuhisa Nishio, Kentaro Hirose, Romain Léguillon, Hiroygbri Makii, Riccardo Orlandi, Kazuaki TsGBRada, James Smallcombe, Satoshi Chiba, Yoshihiro Aritomo, Shouya Tanaka, Tsutomu OhtsGBRi, Igor Tsekhanovich, Costel M. Petrache, Andrei Andreyev

Research output: Chapter in Book/Report/Conference proceedingConference contribution


It is shown that the multi-nucleon transfer reactions is a powerful tool to study fission of exotic neutron-rich actinide nuclei, which cannot be accessed by particle-capture or heavy-ion fusion reactions. In this work, multi-nucleon transfer channels of the reactions of 18O+232Th, 18O+238U and 18O+248Cm are used to study fission for various nuclei from many excited states. Identification of fissioning nuclei and of their excitation energy is performed on an event-by-event basis, through the measurement of outgoing ejectile particle in coincidence with fission fragments. Fission fragment mass distributions are measured for each transfer channel. Predominantly asymmetric fission is observed at low excitation energies for all studied cases, with a gradual increase of the symmetric mode towards higher excitation energy. The experimental distributions are found to be in general agreement with predictions of the fluctuation-dissipation model. Role of multi-chance fission in fission fragment mass distributions is discussed, where it is shown that mass-asymmetric structure remaining at high excitation energies originates from low-excited nuclei by evaporation of neutrons.

Original languageEnglish
Title of host publicationND 2016: International Conference on Nuclear Data for Science and Technology
PublisherEDP Sciences
ISBN (Electronic)9782759890200
Publication statusPublished - 13 Sept 2017
Event2016 International Conference on Nuclear Data for Science and Technology, ND 2016 - Bruges, Belgium
Duration: 11 Sept 201616 Sept 2016


Conference2016 International Conference on Nuclear Data for Science and Technology, ND 2016

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