Electron optical properties of a cathode lens

Autor: M. Lenc, I. Müllerová
Rok vydání: 1992
Předmět:
Zdroj: Ultramicroscopy. 41:411-417
ISSN: 0304-3991
DOI: 10.1016/0304-3991(92)90220-e
Popis: The basic optical parameters of the cathode lens are summarised in this paper, and exact analytical expressions for the axial aberration coefficients are derived. The values of aberration coefficients of the cathode lens are compared with those of the homogeneous field.
Databáze: OpenAIRE