ELSEVIERS, J.; N. ANDREYEV, A.; HUYSE, M.; VAN DUPPEN, P.; ANTALIC, S.; BARZAKH, A.; BREE, N.; E. COCOLIOS, T.; F. COMAS, V.; DIRIKEN, J.; FEDOROV, D.; N. FEDOSSEEV, V.; FRANCHOO, S.; GHYS, L.; A. HEREDIA, J.; IVANOV, O.; K¨OSTER, U.; A. MARSH, B.; NISHIO, K.; D. PAGE, R.; PATRONIS, N.; D. SELIVERSTOV, M.; TSEKHANOVICH, I.; VAN DEN BERGH, P.; VAN DE WALLE, J.; VENHART, M.; VERMOTE, S.; VESELSK'Y, M.; WAGEMANS, C.

doi:10.1103/PhysRevC.88.044321

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Physical Review C. 2013, vol. 88, p. 044321

American Physical Society

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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.< Leer menos

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β-delayed fission of 180Tl

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