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Isaev, A.V.; Svirikhin, A.I.; Andreev, A.V.; Yeremin, A.V.; Izosimov, I.N.; Kuznetsov, A.N.; Kuznetsova, A.A.; Malyshev, O.N.; Popeko, A.G.; Popov, Yu.A.; Sokol, E.A.; Chelnokov, M.L.; Chepigin, V.I.; Schneidman, T.M.; Gall, B.; Dorvaux, O.; Brione, P.; Sellam, A.; Hauschild, K.; Lopez-Martenz, A.; Rezynkina, K.; Mullins, S.; Mosat, P.
Eurasian journal of physics and functional materials, 11/2021, Letnik: 3, Številka: 1Journal Article
In the last years we carried out several experiments aimed to investigate properties of short-lived SF isotopes. The neutron-deficient isotopes of nobelium were produced in fusion-evaporation reactions using206,208Pb targets and an intense48Ca-beam. Fusion-evaporation residues were separated by the SHELS separator and implanted into a large-area double-sided (48 × 48) strip silicon detector surrounded by3He-based neutron counters. Half-lives and decay branching ratios for252,254No isotopes were measured. The average number of neutrons per spontaneous fission of254No determined for the first time.
