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Beam Stability in the Electron Probe Microanalyzer
Published online by Cambridge University Press: 06 March 2019
Abstract
The reliability and speed at which an analysis can be completed, using methods of the electron probe microanalyzer, depends to a large extent on the stability of the electron beam. The incident electron energy and total incident current must be maintained within prescribed limits to ensure accurate and reproducible X-ray data. The incident electron probe diameter must also stay within prescribed limits for maximum resolution over the analysis time. The performance of the electron optics is discussed in relation to high-voltage supply, current regulators, and filament supply. Methods for probe current stabilization using aperture sensing are discussed.
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- Copyright © International Centre for Diffraction Data 1963