Investigating neutron multiplicity during the spontaneous fission of short-lived isotopes (Z ≥ 100) using the VASSILISSA recoil separator

A. I. Svirikhin, M. Gupta, A. V. Yeremin, I. N. Izosimov, A. V. Isaev, A. N. Kuznetsov, O. N. Malyshev, S. Mullins, A. G. Popeko, E. A. Sokol, M. L. Chelnokov, V. I. Chepigin

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The problem of studying the spontaneous fission of nuclei from the exotic region of short-lived neutron-deficient isotopes with Z ≥ 100 is considered. A combined detecting system is created in the focal plane of the VASSILISSA separator. The main part of this system is a neutron detector that allows us to measure the yields of spontaneous fission neutrons from nuclei produced in a total fusion reaction with heavy ion beams in the on-line mode. This procedure is used for the first time to acquire data on the emission of spontaneous fission neutrons from short-lived 244,246Fm isotopes. Data gathered earlier for 252No isotopes are refined in the scope of this work.

Original languageEnglish
Pages (from-to)442-449
Number of pages8
JournalBulletin of the Russian Academy of Sciences: Physics
Issue number4
Publication statusPublished - 01-04-2015


All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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