Abstract
The new neutron-deficient isotope Th-208 was produced in the complete-fusion reaction Ni-64 + Sm-147 -> Th-208 + 3n. Evaporation residues were separated in-flight by the velocity filter SHIP and subsequently identified on the basis of energy-, position- and time-correlated alpha-decay chains. The measured alpha-decay energy and half-life value of Th-208 are 8044(30) keV and 1.7(-0.6)(+1.7) , respectively. Improved data on the alpha-decay of Th-209, Th-210, Th-212 and Ra-208 were obtained using complete-fusion reactions of Ni-64 with Sm-147, Sm-150, and Sm-152 targets.
Original language | English |
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Pages (from-to) | 337-343 |
Number of pages | 7 |
Journal | European physical journal A : Hadrons & Nuclei |
Volume | 46 |
Issue number | 3 |
DOIs | |
Publication status | Published - Dec 2010 |
Keywords
- NUCLEAR
- SPECTROSCOPY
- SEPARATOR
- SHIP
- ALPHA-DECAY
- ELEMENTS
- U-238
- FRAGMENTATION