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Iron-free objective lenses II

Published online by Cambridge University Press:  15 March 2002

A. S.A. Alamir
A. S.A. Alamir*
Affiliation:
Department of Physics, Assiut University, Assiut, Egypt
*
[email protected]
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Abstract

The main factors limit the field of the magnetic lenses are the current density σ and the accelerating voltage Vr. Optical properties such as chromatic and spherical aberration have been studied in terms of σ and Vr. Values of the other aberration coefficients for the optimum lens size corresponding to the desired minimum aberration are estimated.

Keywords

Type
Research Article
Information
The European Physical Journal - Applied Physics , Volume 17 , Issue 3 , March 2002 , pp. 243 - 245
Copyright
© EDP Sciences, 2002

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References

Alamir, A.S., J. Phys. D: Appl. Phys. 25, 1039 (1992). CrossRef
F.Z. Marai, Ph.D. thesis University of Aston, Birmingham, UK, 1977.
R.W. Moses, 5th European Conf. Electron Microscopy, 1972 (London: Institute of Physics), pp. 86-87.
R.W. Moses, in Image Processing and computer aided design in Electron Optic, edited by P.W. Hawkes (Academic press, London and New York, 1973), pp. 250-272.
R.W. Moses, Proc. Roy. Soc. London A 339 (1974).
Mulvey, T., Wallington, M., Rep. Prog. Phys. 36, 341 (1973). CrossRef
Roses, H., Moses, R.W., Optik 27, 316 (1973).
W.D. Riecke, Magnetic Electron Lens properties, edited by P.W. Hawkes, 1982, pp. 164-358.
Tretner, W., Optik 7, 242 (1950).
Tretner, W., Optik 11, 321 (1954) (Errata: Optik 12, 293 (1955)).
Tretner, W., Optik 13, 516 (1956).
Tretner, W., Optik 16, 155 (1959).