An improved Auger electron spectrometer using concentric hemispheres
- 1 June 1974
- journal article
- Published by IOP Publishing in Journal of Physics E: Scientific Instruments
- Vol. 7 (6), 461-463
- https://doi.org/10.1088/0022-3735/7/6/019
Abstract
An improved Auger electron spectrometer is presented, using concentric hemispheres accessed by retarding electron lenses. Two modes of operation are available. The first is a constant resolving power mode in which the resolving power is variable from 500 to 4000, by selection of working distance and applied potentials. The collection efficiency is 0.2% of 2 pi sr at a resolving power of 500. The second is a constant hemisphere pass energy mode. By consecutive use of the two modes, the spectrometer will scan from 1 eV to 2 keV. The collection efficiency can be increased to 3% at a resolving power of 300 but aberrations degrade the performance. The analyser is mounted on an 8 in Conflat flange. Finally, the Auger spectrum of lithium is presented.Keywords
This publication has 5 references indexed in Scilit:
- A high energy resolution Auger electron spectrometer using concentric hemispheresJournal of Physics E: Scientific Instruments, 1972
- Electrostatic cylinder lenses III: three element asymmetric voltage lensesJournal of Physics E: Scientific Instruments, 1972
- Electrostatic cylinder lenses. I. Two element lensesJournal of Physics E: Scientific Instruments, 1971
- A comparison of the étendue of electron spectrometersJournal of Physics E: Scientific Instruments, 1971
- The focal properties of three-element electrostatic electron lensesJournal of Physics E: Scientific Instruments, 1970