beta-delayed fission of 180 Tl

Jytte Elseviers, A.N. Andreyev, M. Huyse, P. Van Duppen, S. Antalic, A. Barzakh, N. Bree, T.E. Cocolios, V.F. Comas, J. Diriken, D. Fedorov, V.N. Fedosseev, S. Franchoo, Lars Ghys, J.A. Heredia, O. Ivanov, U. Köster, B.A. Marsh, K. Nishio, R.D. PageN. Patronis, M.D. Seliverstov, I. Tsekhannovich, P. Van den Bergh, J. Van de Walle, M. Venhart, S. Vermote, M. Veselsky, C. Wagemans, Lucia Popescu

    Research outputpeer-review


    The detailed analysis of the β-delayed fission data of 180 Tl is presented. The experiment was performed by producing a pure beam of 180 Tl by means of highly selective resonance laser ionization followed by mass separation with the ISOLDE (CERN, Geneva) isotope separator. A surprising asymmetric mass distribution of fission fragments from 180 Hg, the daughter of 180 Tl β decays, was observed. Here, the energy calibration of the silicon detectors, which is crucial for a proper determination of the fission fragments’ energy and mass split, is presented and the total kinetic energy and its dependence on the mass split ratio is discussed. A more precise β-delayed fission probability PβDF (180 Tl) = 3.2(2) × 10−3 % was deduced
    Original languageEnglish
    Pages (from-to)044321-044321
    JournalPhysical Review C
    StatePublished - 21 Oct 2013

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