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Contribution to the Study of Isotopic Contamination with a Double Magnetic Deflection Isotope Separator

  • R. Bernas
  • J. Camplan
  • M. van Ments
  • J. L. Sarrouy
Conference paper

Summary

The analysis of the isotopic composition of the ion beam which enters the collector of an electromagnetic separator gives an accurate indication of the nature of contamination in these instruments. We used for this study the second magnetic stage of our isotope separator.

Although the contribution of fast neutral particles produced by change of charge is important, it can easily be eliminated and does not constitute a limiting factor to isotopic purity. This limit is due to scattered ions and, for a small part, to ions that were slowed down or that did not receive the full accelerating voltage.

The contribution of neutrals is obtained from the difference between the isotopic composition of a deposit made on the first stage collector and that of the corresponding ion beam analysed by the second stage.

The experiments were carried out on Sr, Yb, and U. The results confirm the preferential contamination by neighbouring isotopes of heavier mass. The origin of this asymmetry is discussed. The consequences of these various processes on the limiting performances of magnetic cascades are studied.

Keywords

Isotopic Composition Enrichment Factor Magnetic Stage Ionic Contamination Intermediate Diaphragm 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. 1.
    Cassignol, C., C.E.A. report No. 1185 Saclay (1959).Google Scholar
  2. 2.
    Bernas, R., et al. see: Double Magnetic Deflexion Isotope Separator for the Production of Very High Purity Isotopes.Google Scholar
  3. 3.
    Bernas, R., J. Camplan, M. van Ments, J. Phys. Radium (to be printed) 1961.Google Scholar
  4. 4.
    Cassignol, C. private communication.Google Scholar
  5. 5.
    Bernas, R., and C. Cassignol, J. Phys. Radium 21, 566 (1960).CrossRefGoogle Scholar

Copyright information

© Springer-Verlag in Vienna 1961

Authors and Affiliations

  • R. Bernas
    • 1
  • J. Camplan
    • 1
  • M. van Ments
    • 1
  • J. L. Sarrouy
    • 1
  1. 1.Laboratoire de Physique NucléaireUniversité de ParisOrsay (S. et O.)France

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