1. Evidence for the Identification of 178Pb.
- Author
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Batchelder, J.C., Toth, K.S., Rowe, M.W., Ginter, T.N., Gregorich, K.E., Ninov, V.E., Guo, F.Q., Powell, J., Xu, X.-J., and Cerny, Joseph
- Subjects
LEAD ,ISOTOPES ,ALPHA decay ,IRRADIATION - Abstract
With the use of the Berkeley Gas-filled Separator, the α decay of 178Pb was identified in 78Kr irradiations of 102Pd. Following their separation from the incident beam particles, reaction products were implanted in a position-sensitive silicon detector. Two events with Eα of 7602 and 7629 keV were observed and assigned to 178Pb because they were position-correlated with known descendants in the 174Hg α-decay chain. The half-life of 178Pb was calculated with the maximum likelihood method to be 122[sub -50][sup +290] μs. A mass excess of 3608(39) keV and a proton separation energy of 362(48) keV were deduced for 178Pb based on the known masses of 174Hg and 177Tl. © 2003 American Institute of Physics [ABSTRACT FROM AUTHOR]
- Published
- 2003
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