Experiments on synthesis of the heaviest elements at RIKEN

K. Morimoto, K. Morita, D. Kaji, A. Yoneda, H. Haba, T. Akiyama, N. Sato, S. Goto, E. Ideguchi, K. Katori, H. Kikunaga, H. Koura, H. Kudo, T. Ohnishi, A. Ozawa, T. Suda, K. Sueki, F. Tokanai, T. Yamaguchi, A. Yoshida

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


In the Institute of Physical and Chemical Research (RIKEN), using high intensity heavy ion beams from the RIKEN Linear Accelerator, productions and decays of isotopes of the heaviest elements have been investigated by using the gas-filled recoil separator, GARIS. The isotopes studied were 265Hs, 271Ds, 272Rg, 277112, and 278113, respectively. Based on the observed decay chains consisting of consecutive alpha decays connected to the previously known alpha decays or spontaneous fissions, assignments of the initially produced isotopes were done. Our data with the atomic number from 108 to 112, agree well with the data previously taken. The production cross section of the isotope 278113 of the 113th element have reached around 32 fb which shows the simple decrease of the cross section with the increase of the atomic number. The isotopes were produced, for the first time in the In evaporation channel from heavy-ion induced fusion reaction.

Original languageEnglish
Title of host publicationNUCLEAR PHYSICS TRENDS
Subtitle of host publication6th China-Japan Joint Nuclear Physics Symposium
Number of pages6
Publication statusPublished - 2006
Externally publishedYes
EventNUCLEAR PHYSICS TRENDS: 6th China-Japan Joint Nuclear Physics Symposium - Shanghai, China
Duration: 2006 May 162006 May 20

Publication series

NameAIP Conference Proceedings
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616


ConferenceNUCLEAR PHYSICS TRENDS: 6th China-Japan Joint Nuclear Physics Symposium


  • 112, and 113
  • Gas-filled recoil separator
  • Production and decay

ASJC Scopus subject areas

  • Physics and Astronomy(all)


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