Article contents
Plasma Cleaning for Electron Microscopy
Published online by Cambridge University Press: 02 July 2020
Extract
Specimen contamination and amorphous irradiation damage severely limit the ability to perform accurate electron microscope analysis of materials, especially as specimen areas of interest decrease in size. To analyze smaller areas of interest, electron probe sizes have decreased, while probe currents have increased. The combination of these two factors results in an increase in the amount of carbonaceous contamination formed on the specimen under the electron beam. Recently, the use of low energy plasmas has been shown to be effective in preventing such contamination from occurring (1-3). For TEM, the simultaneous placement of the specimen holder and specimen into such a plasma for short periods of time (usually less than two minutes) results in the ability to hold a converged probe on the specimen for analysis without contamination becoming an problem. Figure 1 is a TEM micrograph of a 304 stainless steel specimen.
- Type
- Specimen Preparation
- Information
- Copyright
- Copyright © Microscopy Society of America
References
1. Thomas, R.S., Proc. 7th Annual Scanning Electron Microscope Symposium, Scanning Electron Microscopy (1974) 84.Google Scholar
2. Zaluzec, N.J., U.S. Patent Number 5,510,624, Argonne National Laboratory and the University of Chicago (1996).Google Scholar
3. Zandbergen, H.W., Delsing, A.C.A., Traeholt, C., Van Veen, A., and J. deRoode, Proc. XIII International Congress for Electron Microscopy 1(1994) 1003.Google Scholar
- 1
- Cited by