Fine structure in Tm153 decay

K. S. Toth, P. A. Wilmarth, J. M. Nitschke, R. B. Firestone, K. Vierinen, M. O. Kortelahti, F. T. Avignone

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Abstract

In an investigation of A=153 isotopes fine structure was observed in Tm153 decay. Besides the previously known transitions that feed the Ho149 h11/2 (0.0 keV) and s1/2 (49.0 keV) isomers, two, very much weaker, groups were found to populate the d3/2 (220.4 keV) and d5/2 (564.4 keV) states in Ho149. Based on the Ho149 level scheme and on the Q values for the two main Tm153 transitions, we determine that the h11/2 level in Tm153 is the ground state and that the s1/2 state lies 43±7 keV above it. Energy systematics for the s1/2 and h11/2 proton states in even-N odd-Z nuclei near N=82 are discussed.

Original languageEnglish (US)
Pages (from-to)1932-1935
Number of pages4
JournalPhysical Review C
Volume38
Issue number4
DOIs
StatePublished - Jan 1 1988

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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    Toth, K. S., Wilmarth, P. A., Nitschke, J. M., Firestone, R. B., Vierinen, K., Kortelahti, M. O., & Avignone, F. T. (1988). Fine structure in Tm153 decay. Physical Review C, 38(4), 1932-1935. https://doi.org/10.1103/PhysRevC.38.1932