1. α-decay spectroscopy of light odd-odd Bi isotopes - I: 188,190Bi nuclei.
- Author
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Andreyev, A. N., Ackermann, D., Antalic, S., Boardman, H. J., Cagarda, P., Gerl, J., Heßberger, F. P., Hofmann, S., Huyse, M., Karlgren, D., Keenan, A., Kettunen, H., Kleinböhl, A., Kindler, B., Kojouharov, I., Lavrentiev, A., O'Leary, C. D., Leino, M., Lommel, B., and Matos, M.
- Subjects
BISMUTH isotopes ,ALPHA decay ,ALPHA rays ,RADIOACTIVE decay ,SPECTRUM analysis ,NUCLEAR reactions ,NUCLEAR physics ,NUCLIDES - Abstract
Detailed fine-structure a-decay studies of
188,190 Bi were performed using the complete-fusion reactions of50,52 Cr ions with a142 Nd target at the velocity filter SHIP. The evaporation residues were separated in-flight and subsequently identified on the basis of recoil-a, recoil-α&gamma/X-ray and excitation function measurements. Improved data on the αdecay of188,90 Bi were obtained and a number of new low-lying excited states in the daughters184,186 T1 were observed. An intruder, presumably 10 state was identified in184 T1, extending the systematics of such states in the odd-odd Tl nuclei beyond the neutron mid-shell at N =104. Some technical aspects of experiment at recoil separators are also discussed. [ABSTRACT FROM AUTHOR]- Published
- 2003
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