. Biophysical science. Biophysics. 554 Microscopy /29 : 8 filament and accelerated through a high potential, perhaps 50 kilovolts. This is equivalent to producing light photons from a heated filament (except that the electrons are monochromatic and the photons are not). The photon and electron beams are then collimated by lenses, pass through the object, and are magnified by an objective lens and finally. as \ "n-^" Figure I I. A crystal of the rhombic type of tobacco necrosis virus in which the molecular order is unusually good, x 84,000. After L. W. Labaw and R. W. G. WyckofT, &quo
. Biophysical science. Biophysics. 554 Microscopy /29 : 8 filament and accelerated through a high potential, perhaps 50 kilovolts. This is equivalent to producing light photons from a heated filament (except that the electrons are monochromatic and the photons are not). The photon and electron beams are then collimated by lenses, pass through the object, and are magnified by an objective lens and finally. as \ "n-^" Figure I I. A crystal of the rhombic type of tobacco necrosis virus in which the molecular order is unusually good, x 84,000. After L. W. Labaw and R. W. G. WyckofT, "The Electron Microscopy of Tobacco Necrosis Virus Crystals," J. Ultra- structure Research 2: 8 (1958). by a projector (or eyepiece lens). The image so formed is suitably detected. Electrons are more highly absorbed when going through a solid specimen than are photons of visible light. Even a glass cover slide. 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 Ackerman, Eugene, 1920-. Englewood Cliffs, N. J. , Prentice-Hall
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