ADVANCED ELECTRON BEAM RECORDING TECHNIQUES.
Abstract
An initial program to extend the state-of-the-art in wideband electron beam recording by Schottky emission is reported. Goals for the program were production and test of a breadboard model elec tron gun. The role of electrode spacing in ion damage of the cathode was discovered. Smooth surface projections were shown to hold the key to the discrepancy between theory and practice in voltage breakdown and quantitative values were found by a digital computer which gave the field strength near a surface projection as a function of shape. An outgrowth of this surface projec tion study was discery of a new, more promising approach to a pure field emission source. Where as, the Schottky effect can increase thermionic emission 10 - 20 fold, field emission can in principle gain another two orders of magnitude. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- May 07, 1963
- Accession Number
- AD0413302
Entities
People
- Erwin C. Buschmann
- Sterling P. Newberry
- Theodore H. Klotz
Organizations
- General Electric