Calculation of electrostatic mirrors free of spherical and chromatic aberrations

S. B. Bimurzaev; G. S. Serikbaeva; E. M. Yakushev

doi:10.1117/12.497600

1 April 2003 Calculation of electrostatic mirrors free of spherical and chromatic aberrations

S. B. Bimurzaev, G. S. Serikbaeva, E. M. Yakushev

Proceedings Volume 5025, Fifth Seminar on Problems of Theoretical and Applied Electron and Ion Optics; (2003) https://doi.org/10.1117/12.497600
Event: Fifth Seminar on Problems of Theoretical and Applied Electron and Ion Optics, 2001, Moscow, Russian Federation

Abstract

Calculation formulas for the coefficients of the spherical and axial chromatic aberrations in the rotatory-symmetry electrostatic electron mirror are derived. A technique for elimination of the higher-order derivatives of the mirror system potential axial distribution out of integrands is presented. By means of numerical calculations, conditions for parallel elimination of the spherical and axial chromatic aberrations in the three- and four-electrode electrostatic mirrors composed of coaxial cylindrical of the same diameter are found. Principal layout of the dark-field image transmission electron microscope with the electrostatic electron mirror as the objective lens is given.

Citation Download Citation

S. B. Bimurzaev, G. S. Serikbaeva, and E. M. Yakushev "Calculation of electrostatic mirrors free of spherical and chromatic aberrations", Proc. SPIE 5025, Fifth Seminar on Problems of Theoretical and Applied Electron and Ion Optics, (1 April 2003); https://doi.org/10.1117/12.497600

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