Abstract
Experiment 14.1: Obtaining Type I Magnetic Contrast. Figure A14.1a shows a Type I magnetic contrast image from a square wave recorded on magnetic tape. The image is prepared with an Everhart-Thornley detector biased positively to collect secondary and backscattered electrons. Figure A14.1b shows the same area with the E-T detector biased negatively to exclude secondary electrons. The Type I contrast disappears. This particular square wave was recorded at 1 kHz with a tape transport speed of 4.77 cm/sec. This combination produces a spacing of 47.7 μm/cycle, which is close to the value measured from the micrograph, 43.3 μm/cycle.
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© 1990 Plenum Press, New York
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Lyman, C.E. et al. (1990). Magnetic Contrast. In: Scanning Electron Microscopy, X-Ray Microanalysis, and Analytical Electron Microscopy. Springer, Boston, MA. https://doi.org/10.1007/978-1-4613-0635-1_43
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DOI: https://doi.org/10.1007/978-1-4613-0635-1_43
Publisher Name: Springer, Boston, MA
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