Low lying states of Th229

Torkild Andersen, K. Maack Bisgård, P.Gregers Hansen

    Research output: Contribution to journalJournal articleResearchpeer-review


    The decay of 1.6 × 105y U233 has been studied by means of a six gap beta-ray spectrometer, a xenon filled proportional counter and scintillation spectrometers. Internal conversion electrons having energies below 100 keV were measured. The mixing ratios for the 42 keV and the 55 keV transitions agree with the assumed rotational character of the 42 keV and 97 keV states. Results concerning the 163 keV state indicate that this state is also a member of the ground state rotational band.
    Original languageEnglish
    JournalNuclear Physics
    Issue number4
    Pages (from-to)673-680
    Publication statusPublished - 1961


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