. The electron microscope, its development, present performance and future possibilities. Electron microscopes. 134 The Electron Microscope Atoms with an atomic number larger than Z ^ 2 ought to be above the visibiHty level. This estimate is more optimistic than Schiff's, who puts the limit to Z = 7, because he takes only the elastic scattering into account. hat is the apparent size of heavier atoms ? The discussion is much simplified if we consider only the elastic part of the scattering, and replace the atoms by a convenient model, such as the Thomas-Fermi atom.* (Mott-Massey,^^ p. 126.)

. The electron microscope, its development, present performance and future possibilities. Electron microscopes. 134 The Electron Microscope Atoms with an atomic number larger than Z ^ 2 ought to be above the visibiHty level. This estimate is more optimistic than Schiff's, who puts the limit to Z = 7, because he takes only the elastic scattering into account. hat is the apparent size of heavier atoms ? The discussion is much simplified if we consider only the elastic part of the scattering, and replace the atoms by a convenient model, such as the Thomas-Fermi atom.* (Mott-Massey,^^ p. 126.) Stock Photo

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. The electron microscope, its development, present performance and future possibilities. Electron microscopes. 134 The Electron Microscope Atoms with an atomic number larger than Z ^ 2 ought to be above the visibiHty level. This estimate is more optimistic than Schiff's, who puts the limit to Z = 7, because he takes only the elastic scattering into account. hat is the apparent size of heavier atoms ? The discussion is much simplified if we consider only the elastic part of the scattering, and replace the atoms by a convenient model, such as the Thomas-Fermi atom.* (Mott-Massey, ^^ p. 126.) This is. !* II 'V .* |. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Gabor, Dennis, 1900-. Brooklyn, Chemical Pub. Co.

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