Newbury, D.
(2002),
X-Ray Microanalyses in the Variable Pressure (Environmental) Scanning Electron Microscopy, Journal of Research (NIST JRES), National Institute of Standards and Technology, Gaithersburg, MD
(Accessed December 10, 2024)
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X-Ray Microanalyses in the Variable Pressure (Environmental) Scanning Electron Microscopy
Published
Author(s)
Abstract
X-ray spectra measured on uncoated insulators in the low voltage scanning electron microscope (LVSEM) and the variable pressure environmental scanning electron microscope (VP-ESEM) are subject to artifacts due to charging effects despite the capability of obtaining stable SEM imaging under these conditions. Spectral features are investigated that can be used to reveal anomalous charging conditions to avoid or at least recognize such artifacts. The Duane-Hunt limit of the x-ray continuum is a valuable tool for examining the incident beam energy which responds to charging conditions, but the dynamic nature of charging can introduce time dependent effects that can mask the expected effects. Protocols are described to evaluate the charging situation and to minimize or even eliminate it while retaining the ability to examine unmodified surfaces.Citation
Journal of Research (NIST JRES) -
Volume
107 No. 6
NIST Pub Series
Pub Type
NIST Pubs
Keywords
Duane-Hunt limit, electron probe microanalysis, energy dispersive spectrometry, microbeam analysis, scanning electron microscopy, x-ray spectrometry
Citation
Issues
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Created December 1, 2002, Updated February 17, 2017