期刊
EUROPEAN PHYSICAL JOURNAL A
卷 15, 期 3, 页码 335-342出版社
SPRINGER-VERLAG
DOI: 10.1140/epja/i2002-10038-4
关键词
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The radioactive decay of Pa-217 was investigated by means of alpha-gamma-spectroscopy. Fine structure in the ground-state alpha-decay was established. Ambiguities in the fine structure of the alpha-decay of the previously known isomeric state could be clarified by alpha-gamma-coincidence measurements. A previously unknown alpha-transition of E-alpha = (8306 +/- 5) keV was detected and identified by means of delayed alpha-alpha- and coincidence measurements. A second isomeric state decaying by alpha-emission was not observed. The quality of the previously reported data of the alpha-decay fine structure of Th-217 was improved.
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