Aperture lens formula corrected for space charge in the electron stream
- 1 April 1957
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IRE Transactions on Electron Devices
- Vol. 4 (2) , 132-134
- https://doi.org/10.1109/t-ed.1957.14215
Abstract
The aperture lens formula of Davisson and Calbick is rederived to include the effect of space charge forces. The correction is applied to a parallel flow Pierce gun, leading to the focal length reduction as a function of perveance, e.g., 30 per cent reduction at perveance 3 × 10-6.Keywords
This publication has 2 references indexed in Scilit:
- A Detailed Analysis of Beam Formation with Electron Guns of the Pierce TypeBell System Technical Journal, 1956
- Electron LensesPhysical Review B, 1932