https://doi.org/10.1140/epja/i2010-11058-1
Regular Article - Experimental Physics
The new isotope 208Th
1
FIAS, Goethe-Universität Frankfurt, 60438, Frankfurt, Germany
2
GSI Helmholtzzentrum für Schwerionenforschung (GSI), 64291, Darmstadt, Germany
3
School of Engineering and Science, University of the West of Scotland, PA1 2BE, Paisley, UK
4
The Scottish Universities Physics Alliance (SUPA), Paisley, UK
5
Instituut voor Kern- en Stralingsfysica, K.U. Leuven, University of Leuven, 3001, Leuven, Belgium
6
Department of Nuclear Physics and Biophysics, Comenius University, 84248, Bratislava, Slovakia
7
Institut für Physik, Goethe-Universität Frankfurt, 60054, Frankfurt, Germany
Received:
16
July
2010
Accepted:
25
October
2010
Published online:
9
November
2010
The new neutron-deficient isotope 208Th was produced in the complete-fusion reaction 64Ni + 147Sm 
208Th + 3n . Evaporation residues were separated in-flight by the velocity filter SHIP and subsequently identified on the basis of energy-, position- and time-correlated 
-decay chains. The measured -decay energy and half-life value of 208Th are 8044(30)keV and 1.7+1.7
-0.6 ms, respectively. Improved data on the -decay of 209Th , 210Th , 212Th and 208Ra were obtained using complete-fusion reactions of 64Ni with 147Sm , 150Sm , and 152Sm targets.
© SIF, Springer-Verlag Berlin Heidelberg, 2010
