## Quadrupoles in electron lens design |

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### Contents

Definitions Notation and Methods of Analysis | 3 |

Quadrupole Potential Functions | 71 |

their Suitability for Specific Purposes | 87 |

Copyright | |

3 other sections not shown

### Common terms and phrases

accelerating voltage angular aperture antisymmetric quadruplet Antony-Spies aperture aberration coefficients asymptotic aberrations asymptotic cardinal elements bell-shaped model bore radius chromatic aberration coefficients consider correct corrector curves Deltrap denotes Dhuicq distortion doublet Dymnikov electron electron lens eqns equations of motion excitation field fifth order aberrations focal length formulae Hardy Hawkes I I I I I I I I I I I I I I I I I I I image distance imagery Kawakatsu line image lllllllll magnetic lenses magnetic quadrupoles magnification Moses notation object distance object plane objective lens objective lenses obtained optic axis orthomorphic parameters pole-piece poles principal sections probe-forming lenses projector quadrupole doublet quadrupole multiplets quadrupole systems quadrupoles and octopoles Regenstreif round lens Scherzer and Typke Septier spherical aberration stigmatic symmetric triplet transfer matrix values y-z plane