Recent developments in the techniques of electron probe micro-analysis have emphasized the need for improved lenses for the probe forming system. Iron-free magnetic lenses as proposed by Le Poole offer several interesting possibilities. The general properties of such lenses are discussed in the light of the authors’ calculations and measurements, with a view to extending their field of application.


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. Crewe, A. V., D. N. Eggenburger, J. Wall, and L. M. Welter: Rev. Sci. Instr. 39, No. 4, 576–583 (1968).ADSCrossRefGoogle Scholar
  2. Dugas, J., P. Durandeau et C. Feet: Rev. opt. 40, 277–305 (1961).Google Scholar
  3. Duncumb, P., and J. Cooke: These Proceedings 1968.Google Scholar
  4. Durandeau, P.: Ph. D. Thesis No. 128, University of Toulouse 1957.Google Scholar
  5. Lenz, F.: Z. Angew. Phys. 2, 448–435 (1950).Google Scholar
  6. Liebmann, G., and E. M. Grad: Proc. Phys. Soc. (London) B 64, 956–971 (1951).ADSCrossRefGoogle Scholar
  7. Le Poole, J. B.: 3rd. European Conf. Elec. Micros. Prague. Prague: Czech. Academy of Sciences 1964.Google Scholar
  8. Poole, J. B., A. B. Box, and E.J. Bgggerd: T.N.O. Nieuws 20, 917 (1965).Google Scholar
  9. Meets, M. van, and J. B. le Poole: Appl. Sci. Res. Sect. B 1, 3–17 (1947).Google Scholar
  10. Mulvey, T.: Focussing of charged particles, vol. I, chapt. 2.6 ed. SEPTIER. 469–494: Academic Press 1967.Google Scholar
  11. TNO-TH (Delft) Jaarverslag, 21–23 (1967).Google Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 1969

Authors and Affiliations

  • R. Bassett
    • 1
  • T. Mulvey
    • 1
  1. 1.Department of PhysicsThe University of Aston in BirminghamEngland

Personalised recommendations