Lifetimes of the low-energy M1 transitions in La137 and Kr83

S. L. Ruby*, Y. Hazoni, M. Pasternak

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


Using conventional time to pulse-height techniques, the lifetimes of the low-lying levels in La137 and Kr83 have been measured, despite the low γ-ray energies (10 and 9.3 keV) and the large internal conversion coefficients (130 and 11). The results of 89±4 and 147±4 nsec, respectively, correspond to retardation factors of 370 and 45 over the single-particle model predictions for those M1 transitions.

Original languageEnglish
Pages (from-to)826-828
Number of pages3
JournalPhysical Review
Issue number2
StatePublished - 1963
Externally publishedYes


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