Spins and hyperfine structure separations of radioactive Au198 and Au199

R. L. Christensen, D. R. Hamilton, A. Lemonick, F. M. Pipkin, J. B. Reynolds, H. H. Stroke

    Research output: Contribution to journalArticlepeer-review

    Abstract

    The focusing atomic beam apparatus has been used to measure the spins and hyperfine structure separations of Au198 (2.7 days) and Au199 (3.15 days). The observed spins are 2 for Au198 and 32 for Au199. Observed Δν for Au198 is 21 800±150 Mc/sec, assuming μI to be positive, or 22 500±150 Mc/sec, assuming μI to be negative. Δν for Au199 is 11 110±130 Mc/sec, assuming μI to be positive, or 11 180±130 Mc/sec, assuming μI to be negative. The high Δν for Au198 made it necessary to study that element by observation of multiple-quantum transitions.

    Original languageEnglish (US)
    Pages (from-to)1389-1395
    Number of pages7
    JournalPhysical Review
    Volume101
    Issue number4
    DOIs
    StatePublished - 1956

    ASJC Scopus subject areas

    • Physics and Astronomy(all)

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