The decay of the new neutron-rich isotope
- J. Kurpeta
- A. P\lochocki
- A. N. Andreyev
- J. Äystö
- A. De Smet
- H. De Witte
- A.-H. Evensen
- V. Fedoseyev
- S. Franchoo
- M. Górska
- M. Huhta
- M. Huyse
- Z. Janas
- A. Jokinen
- M. Karny
- E. Kugler
- W. Kurcewicz
- U. Köster
- J. Lettry
- A. Nieminen
- K. Partes
- M. Ramdhane
- H. L. Ravn
- K. Rykaczewski
- J. Szerypo
- K. Van de Vel
- P. Van Duppen
- L. Weissman
- G. Walter
- A. Wöhr
- IS387 Collaboration
- ISOLDE Collaboration
DOIAbstract
Exotic, neutron-rich proton-induced spallation products of 232Th and 238U obtained from the PS Booster ISOLDE facility have been investigated by $\gamma$-$\gamma$, $\alpha$-$\gamma$ coincidence and spectrum-multiscaling measurements. A new method for the reduction of isobaric contamination enabled to study the unknown region beyond 208Pb for the decay chain A = 217. A new isotope 217Bi with a half-life of $98.5 \pm 0.8$ s was discovered and its $\beta$-decay studied. For the first time, a half-life value of $1.53 \pm 0.03$ s for the $\alpha$-decay of 217Po was measured
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