J Worster
Abstract
The existence of a cylindrically symmetric magnetic field is demonstrated for which the chromatic aberration and the spherical aberration of an electron beam are independent of the order of the focus.
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The existence of a cylindrically symmetric magnetic field is demonstrated for which the chromatic aberration and the spherical aberration of an electron beam are independent of the order of the focus.
Key concepts: Spherical aberration, Chromatic aberration, Contrast transfer function, Optics, Magnetic field, Physics, Focus (optics), Electron optics