Characteristics of the Möllenstedt Electron Velocity Analyzer
- 15 March 1966
- journal article
- conference paper
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 37 (4) , 1737-1741
- https://doi.org/10.1063/1.1708593
Abstract
The performance of the Möllenstedt electron velocity analyzer has been investigated by numerical trajectory tracing by digital computer. Two methods of calculating a field distribution have been employed, namely (a) relaxation for an actual case of interest with cylindrical electrodes, and (b) an analytical solution for a system of two line charges between earthed plates. Suitable equipotential surfaces for this system can be chosen to simulate the cylindrical electrodes of a practical analyzer. The latter system is a reasonable approximation to the actual case, and in practice is much simpler to use in numerical calculations than (a). Using (a) one electrode system has been studied in detail; using (b) several geometries have been investigated. The dispersion of the instrument and the effects of slit width and angular divergence on resolution have been investigated for various electrode geometries. A simple rule for slit width resolution is given.This publication has 4 references indexed in Scilit:
- The characteristics of the M llenstedt velocity analyserBritish Journal of Applied Physics, 1965
- Beitrag zur Erhöhung der Auflösung des elektrostatischen GeschwindigkeitsanalysatorsThe European Physical Journal A, 1958
- Electron Characteristic Energy Losses in Metals and CompoundsPhysical Review B, 1956
- Potential distribution of symmetrical cylindrical electron lensesBritish Journal of Applied Physics, 1954