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Title $\beta$-delayed fission and $\alpha$ decay of $^{196}$At
Author(s) Truesdale, V L (York U., England) ; Andreyev, A N (York U., England ; JAEA, Ibaraki ; West Scotland U.) ; Ghys, L (Leuven U. ; SCK-CEN, Mol) ; Huyse, M (Leuven U.) ; Van Duppen, P (Leuven U.) ; Sels, S (Leuven U.) ; Andel, B (Comenius U.) ; Antalic, S (Comenius U.) ; Barzakh, A (St. Petersburg, INP) ; Capponi, L (West Scotland U.) ; Cocolios, T E (CERN ; Manchester U.) ; Derkx, X (Caen U. ; West Scotland U.) ; De Witte, H (Leuven U.) ; Elseviers, J (Leuven U.) ; Fedorov, D V (St. Petersburg, INP) ; Fedosseev, V N (CERN) ; Heßberger, F P (Darmstadt, GSI ; Helmholtz Inst., Mainz) ; Kalaninová, Z (Dubna, JINR ; Comenius U.) ; Köster, U (Laue-Langevin Inst.) ; Lane, J F W (West Scotland U.) ; Liberati, V (West Scotland U.) ; Lynch, K M (CERN ; Manchester U.) ; Marsh, B A (CERN) ; Mitsuoka, S (JAEA, Ibaraki) ; Nagame, Y (JAEA, Ibaraki) ; Nishio, K (JAEA, Ibaraki) ; Ota, S (JAEA, Ibaraki) ; Pauwels, D (SCK-CEN, Mol) ; Popescu, L (SCK-CEN, Mol) ; Radulov, D (Leuven U.) ; Rapisarda, E (CERN) ; Rothe, S (CERN) ; Sandhu, K (West Scotland U.) ; Seliverstov, M D (York U., England ; Leuven U. ; St. Petersburg, INP ; West Scotland U.) ; Sjödin, A M (CERN) ; Van Beveren, C (Leuven U.) ; Van den Bergh, P (Leuven U.) ; Wakabayashi, Y (JAEA, Ibaraki)
Publication 2016
Number of pages 11
In: Phys. Rev. C 94 (2016) 034308
DOI 10.1103/PhysRevC.94.034308
Subject category Nuclear Physics - Experiment
Abstract A nuclear-decay spectroscopy study of the neutron-deficient isotope At196 is reported where an isotopically pure beam was produced using the selective Resonance Ionization Laser Ion Source and On-Line Isotope Mass Separator (CERN). The fine-structure α decay of At196 allowed the low-energy excited states in the daughter nucleus Bi192 to be investigated. A β-delayed fission study of At196 was also performed. A mixture of symmetric and asymmetric fission-fragment mass distributions of the daughter isotope Po196 (populated by β decay of At196) was deduced based on the measured fission-fragment energies. A βDF probability PβDF(At196)=9(1)×10−5 was determined.
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