Abstract
ONE of the greatest difficulties for the user of an electron microscope in metallography is the localization of a micrograph on the original specimen. The high magnification gives a very small area of observation which is, in general, less than 15 µ × 20 µ. It is, for example, only one three-thousandth of the area of a 1-mm.2 specimen, and it is therefore practically impossible to identify it again.
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DE HASS, E. Graticules as Guides in Electron-Microscope Metallography. Nature 166, 482–483 (1950). https://doi.org/10.1038/166482b0
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DOI: https://doi.org/10.1038/166482b0
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