Electron beam current controller for LEED-Auger studies
- 1 April 1975
- journal article
- Published by IOP Publishing in Journal of Physics E: Scientific Instruments
- Vol. 8 (4) , 305-307
- https://doi.org/10.1088/0022-3735/8/4/020
Abstract
A control circuit is described which maintains a constant incident beam current for LEED-Auger electron guns. Significant in the design are isolation of control circuitry and gun by means of a solid state optical coupler, control based on true beam current, and adaptability of circuit to existing equipment. Control to better than 0.5% is possible for beam currents between 0.1-100 mu A.Keywords
This publication has 4 references indexed in Scilit:
- A Regulated Filament Temperature Power Supply for Electron GunsReview of Scientific Instruments, 1973
- A Reliable Heat Sink for Low Temperature ApplicationsReview of Scientific Instruments, 1972
- A study of LEED intensities from cleaved beryllium and zinc surfacesSurface Science, 1972
- A precision electron emission regulatorVacuum, 1972