Robinson™ Backscattered Electron (BSE) Detector for Scanning Electron Microscopes
BSE imaging as a function of voltage
Introduction:
When one says "a picture is worth a thousand words", it could not be more applicable
than when showing the superiority of the Robinson BSE detector when comparing it to
the results obtained from other BSE detectors. Those doing BSE imaging learned a long
time ago that one can learn a great deal by documenting the image as a function of
accelerating voltage.
Experimental data:
Our objective is to show the effect of image contrast at different accelerating voltages
of the SEM. All are of the same aluminum alloy and same field but with the image being
recorded at different voltages (2.4 kV, 5 kV and 12 kV). The intent is to demonstrate
how much more information can be obtained at low accelerating voltages than high voltages.
The sample is a highly polished aluminum alloy. We are certain that anyone experienced in
the field of BSE imaging will recognize that this is extraordinary resolution for a low
voltage image.
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Taken with 12 kV accelerating voltage
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Taken with 5 kV accelerating voltage
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Taken with 2.4 kV accelerating voltage
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Sunday March 21, 2010
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