β-delayed fission of 180Tl

J. 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, L. Ghys, J. A. Heredia, O. Ivanov, U. Köster, B. A. Marsh, K. Nishio, R. D. PageN. Patronis, M. D. Seliverstov, I. Tsekhanovich, P. Van Den Bergh, J. Van De Walle, M. Venhart, S. Vermote, M. Veselský, C. Wagemans

    Research outputpeer-review

    Abstract

    The detailed analysis of the β-delayed fission data of 180Tl is presented. The experiment was performed by producing a pure beam of 180Tl 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 180Hg, the daughter of 180Tl 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(180Tl)=3.2(2)×10-3% was deduced.

    Original languageEnglish
    Article number044321
    Number of pages13
    JournalPhysical Review C - Nuclear Physics
    Volume88
    Issue number4
    DOIs
    StatePublished - 21 Oct 2013

    ASJC Scopus subject areas

    • Nuclear and High Energy Physics

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