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Practical Autotuning for Transmission Electron Microscopes

Published online by Cambridge University Press:  02 July 2020

M. Pan
M. Pan*
Affiliation:
Gatan R&D, 5933 Coronado Lane, Pleasanton, CA, 94588
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Extract

There are three main algorithms for autotuning a transmission electron microscope (TEM), (1) image variance method, (2) tilt-induced image shift (TIS) method, and (3) automated diffractogram analysis method (ADA). In practice, each method has its own advantages and limitations. Therefore it is necessary to obtain a comprehensive understanding of each in order to be able to select the most appropriate one(s).

There are four key elements in any TEM autotuning setup, (1) microscope control by an external computer, for example via the standard RS232 serial port; (2) proper image acquisition device, for example a TV or a slow-scan CCD camera; (3) appropriate software for image analysis, processing, and optimization; (4) a fast computer that is the central control unit in the setup and dictates all the activities and operations.

Type
Advances in Remote Microscopy, Instrument Automation and Data Storage
Information
Microscopy and Microanalysis , Volume 4 , Issue S2: Proceedings: Microscopy & Microanalysis '98, Microscopy Society of America 56th Annual Meeting, Microbeam Analysis Society 32nd Annual Meeting, Atlanta, Georgia July 12-16, 1998 , July 1998 , pp. 52 - 53
Copyright
Copyright © Microscopy Society of America

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References

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