Elsevier

Nuclear Physics A

Volume 194, Issue 2, 23 October 1972, Pages 292-304
Nuclear Physics A

Hyperfine interactions of 220Rn and 224Ra implanted into Fe, Al, Cd and Bi metals

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Abstract

The interactions on radon and radium nuclei implanted into metals have been studied by means of α-γ angular correlations. The influence of source preparation and of surface oxide layers have been studied in sources prepared by evaporation and isotope separator implantation. The interactions in iron are found to have contributions from static magnetic fields as well as static quadrupole interactions. The magnetic fields for radon and radium in iron were determined to be +920±85 kOe and −380±35 kOe, respectively. The theoretical models used to describe the perturbations due to mixed interactions and their importance in internal field determinations are discussed.

References (16)

  • B. Orre et al.

    Nucl. Phys.

    (1970)
  • H. Frauenfelder et al.
  • E. Flamm et al.

    Phys. Rev.

    (1963)
  • E.J. Ansaldo et al.

    Phys. Lett.

    (1969)
    E.J. Ansaldo et al.

    Phys. Lett.

    (1970)
  • P. Herzog, K. Krein and K. Freitag, private...
  • A. Abragam et al.

    Phys. Rev.

    (1953)
  • M.E. Caspari et al.

    Phys. Rev.

    (1962)
  • M. Blume
There are more references available in the full text version of this article.

Cited by (14)

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    Citation Excerpt :

    Theoretical fits to the data, for different assumptions concerning the types of interaction at the recoil sites, enable one to eliminate magnetic dipole interactions, both time dependent and random static as possibilities. Angular correlation measurements at higher temperature [8,9] together with time differential measurements in iron [9], although not conclusive, tend to militate against electric quadrupole time dependent interactions. However, no statistical significance is apparent between fits assuming static electric quadrupole interactions with axially symmetric and axially asymmetric (η=0.4) electric field gradients.

  • Nuclear data sheets for A = 216,220

    1997, Nuclear Data Sheets
  • Nuclear Data Sheets for A = 224

    1976, Nuclear Data Sheets
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Present address: Physics Department, University of Wisconsin, Madison, Wisconsin, USA.

††

Present address: Ioffe Physico-Technical, Leningrad K 21, USSR.

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