Particle Optics in Electron Microscopes

Tolerances and optical properties of electron optical devices with nonlinear fields were investigated. Of special interest were tolerances of the sextupole fields which were used by Dr. M. Haider in 1997 to obtain a world record of resolution.

Publications

• Comments on aberration correction in symmetric imaging energy filters, G. H. Hoffstaetter, Nuclear Instruments and Methods in Physics Research A 427, 275-281 (1999)

• Gauge invariance in the eikonal method, G. H. Hoffstaetter and H. Rose, Nuclear Instruments and Methods in Physics Research A 328, 398-401 (1993)

• Geometrische Elektronenoptik angewandt auf ein durch Hexapole korrigiertes Mikroskop mit sub Angström Auflösung, G. H. Hoffstaetter, Diplomarbeit, Technische Hochschule Darmstadt (1991)

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