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β-delayed fission of 180Tl

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.
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http://hal.in2p3.fr/in2p3-00918280
Contributor : Nathalie Martin <>
Submitted on : Friday, December 13, 2013 - 11:24:52 AM
Last modification on : Wednesday, September 16, 2020 - 4:08:29 PM

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J. Elseviers, A. N. Andreyev, M. Huyse, P. van Duppen, S. Antalic, et al.. β-delayed fission of 180Tl. Physical Review C, American Physical Society, 2013, 88, pp.044321. ⟨10.1103/PhysRevC.88.044321⟩. ⟨in2p3-00918280⟩

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