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Improving Image Quality and Reducing Drift Problems via Automated Data Acquisition and Averaging in a Cs-Corrected TEM

Published online by Cambridge University Press:  14 March 2018

E. Voelkl ,
B. Jiang ,
Z.R. Dai  and
J.P Bradley
E. Voelkl*
Affiliation:
FEI Company, Hillsboro, OR
B. Jiang
Affiliation:
FEI Company, Hillsboro, OR Institute of Geophysics and Planetary Physics, Lawrence Livermore National Laboratory, Livermore, CA
Z.R. Dai
Affiliation:
Institute of Geophysics and Planetary Physics, Lawrence Livermore National Laboratory, Livermore, CA
J.P Bradley
Affiliation:
Institute of Geophysics and Planetary Physics, Lawrence Livermore National Laboratory, Livermore, CA
*
[email protected]

Extract

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Image acquisition with a CCD camera is a single-press-button activity: after selecting exposure time and adjusting illumination, a button is pressed and the acquired image is perceived as the final, unmodified proof of what was seen in the microscope. Thus it is generally assumed that the image processing steps of e.g., “darkcurrent correction” and “gain normalization” do not alter the information content of the image, but rather eliminate unwanted artifacts.

Type
Research Article
Information
Microscopy Today , Volume 16 , Issue 6 , November 2008 , pp. 36 - 39
Copyright
Copyright © Microscopy Society of America 2008

References

[1] Voelkl, E, Jiang, B, Dai, ZR, and Bradley, JP, Microsc Microanal 14 (Suppl 2), 2008, 844-845.CrossRefGoogle Scholar
[2]MB Priestly (1981) Spectral Analysis and Time Series, Academic PressGoogle Scholar
[3] Voelkl, E et al., Ultramicroscopy 58 (1995) 97-103 CrossRefGoogle Scholar
[4] Voelkl, E, Microsc Microanal 14 (Suppl 2), 2008, 840-841.CrossRefGoogle Scholar
[5]DigitalMicrograph, software by Gatan, Inc., 5794 W. Las Positas Blvd. Pleasanton, CAGoogle Scholar
[6]HoloWorks v4, software plug-in for DigitalMicrograph, Gatan Inc., Pleasanton, CAGoogle Scholar
[7]This research was supported by a NASA Sample Return Laboratory instrument Development Program (SRLIDAP) grant (to JPB) and a Laboratory Directed Research and Development (LDRD) award, and it was performed under the auspices of the U.S. DOE by Lawrence Livermore National Laboratory in part under contract No. W-7405-Eng-48 and in part under contract DE-AC52- 07NA27344.Google Scholar