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Optical pumping of short lived Β-radioactive isotopes and the magnetic moment of37K

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Zeitschrift für Physik A Hadrons and nuclei

Abstract

21Na (T 1/2=23 sec) and37K(T 1/2=1.25 sec) have been produced in gas targets by (d, n) reactions and polarized by means of optical pumping or spin exchange scattering with optically pumped87Rb. An asymmetry up to 3% in theΒ-decay of the polarized nuclei was found, which served to detect rf transitions between hfs levels of the atomic ground states of21Na and37K.δF=0 andδF=1 resonances have been recorded, yielding spin, hfs separation and magnetic moment, especiallyI(37K)=3/2,δW(37K)=240.266 (3) Mc/sec andΜ I(37K)=0.02033(6) nm (diamagnetically corrected). For21Na earlier rf-spectroscopic data have been confirmed.

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Author notes

  1. H. J. Besch

    Present address: Physikalisches Institut der UniversitÄt Bonn, Deutschland

Authors and Affiliations

  1. I. Physikalisches Institut der UniversitÄt Heidelberg, Deutschland

    U. Köpf, H. J. Besch, E. W. Otten & Ch. von Platen

Authors
  1. U. Köpf
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  2. H. J. Besch
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  3. E. W. Otten
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  4. Ch. von Platen
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Additional information

This paper substantially comprises the principal part of the thesis of U.Köpf.

The authors wish to thank Prof. J.Heintze, Prof. B.Povh and Prof. V.Soergel for their interest in this work. They appreciate the hospitality and the permanent help of the cyclotron group of the Heidelberg Max-Planck-Institut für Kernphysik and the assistence of Dipl.-Phys. R.Neugart and cand. phys. J.Bonn during the measurements. We are indebted to Dr. N.Laulainen for his critical reading of the manuscript. This work was sponsored by the Deutsche Forschungsgemeinschaft and the Bundesministerium für wissenschaftliche Forschung.

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Köpf, U., Besch, H.J., Otten, E.W. et al. Optical pumping of short lived Β-radioactive isotopes and the magnetic moment of37K. Z. Physik 226, 297–327 (1969). https://doi.org/10.1007/BF01399103

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  • DOI: https://doi.org/10.1007/BF01399103

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