$\beta$-delayed fission and $\alpha$ decay of $^{196}$At
- Truesdale, V L
- Andreyev, A N
- Ghys, L
- Huyse, M
- Van Duppen, P
- Sels, S
- Andel, B
- Antalic, S
- Barzakh, A
- Capponi, L
- Cocolios, T E
- Derkx, X
- De Witte, H
- Elseviers, J
- Fedorov, D V
- Fedosseev, V N
- Heßberger, F P
- Kalaninová, Z
- Köster, U
- Lane, J F W
- Liberati, V
- Lynch, K M
- Marsh, B A
- Mitsuoka, S
- Nagame, Y
- Nishio, K
- Ota, S
- Pauwels, D
- Popescu, L
- Radulov, D
- Rapisarda, E
- Rothe, S
- Sandhu, K
- Seliverstov, M D
- Sjödin, A M
- Van Beveren, C
- Van den Bergh, P
- Wakabayashi, Y
DOIAbstract
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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