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Radioactive decay of 217Pa |
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| Authors: | FP Heßberger S Hofmann I Kojouharov D Ackermann S Antalic P Cagarda B Kindler B Lommel R Mann AG Popeko S Saro J Uusitalo AV Yeremin |
| Institution: | Gesellschaft für Schwerionenforschung mbH, D-64220 Darmstadt, Germany, DE Department of Nuclear Physics, Comenius University SK-84215 Bratislava, Slovakia, SK Flerov Laboratory of Nuclear Reactions, JINR, 141 980 Dubna, Russia, RU Physics Department, University of Jyv?skyl?, FIN-40351 Jyv?skyl?, Finland, FI |
| Abstract: | The radioactive decay of 217Pa was investigated by means of α-γ-spectroscopy. Fine structure in the ground-state α-decay was established. Ambiguities in the fine structure of the α-decay of the previously known isomeric state could be clarified by α-γ-coincidence measurements. A previously unknown α-transition of E α = (8306 ± 5) keV was detected and identified by means of delayed α-α- and α-γ-γ-coincidence measurements. A second isomeric state decaying by α-emission was not observed. The quality of the previously reported data of the α-decay fine structure of 217Th was improved. Received: 29 April 2002 / Accepted: 17 June 2002 / Published online: 19 November 2002 RID="a" ID="a"e-mail: f.p.hessberger@gsi.de Communicated by J. ?yst? |
| Keywords: | PACS 23 60 +e Alpha decay – 27 90 +b A ≥ 220 |
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