X-Ray Microscopy

  • Theodore George Rochow
  • Eugene George Rochow


X-rays are electromagnetic radiation of the same nature as visible light but with only l/1000th the wavelength.(1) X-rays behave like light toward photosensitive materials. For example, when a dentist takes a radiograph he places an unexposed photosensitive film next to the teeth and turns on the x-rays. Cavities show up dark on the negative film because they transmit x-rays so well. Sound teeth show up less dark because they are denser than air or flesh. Ceramic and plastic fillings are still darker if they are denser than teeth and bone: Silver and gold show up very dark when exposed to x-rays because they are very dense (of high atomic number).


High Atomic Number Pole Piece Pellet Diameter Photosensitive Material Sound Tooth 


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References for Chapter 15

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    Compilation of ASTM Standard Definitions, 3rd ed., American Society for Testing and Materials, Philadelphia, Pa. 19103 (1976).Google Scholar
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    Canalco leaflet, The Micro-Source of X-Rays, Canal Industrial Corp., Bethesda, Md. 20014 (1959).Google Scholar
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    S. B. Newman and D. Fletcher, Soft-x-ray microscopy of paper, Technical Association of the Pulp and Paper Industry 47, 177–180 (1964).Google Scholar
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    M. C. Botty and E. J. Thomas, Applications of microradiography with the EMU-1 electron microscope, Paper presented to the Electron Microscope Society of America, Columbus, Ohio, September 9, 1959 (unpublished). M. C. Botty and F. G. Rowe, U. S. Patent 2,843,751 (July 15, 1958).Google Scholar
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    Philips Electronic Instruments, Mount Vernon, N. Y 10550.Google Scholar
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    M. C. Botty, unpublished work, American Cyanamid Co., Stamford, Conn. 06904; private communications of May 21 and June 2, 1976 to T. G. Rochow.Google Scholar
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    J. I. Gedney, M. C. Botty, and E. J. Thomas, The preparation of rigid foams for microscopical examination, Paper presented to the American Society for Testing and Materials, Atlantic City, N. J., June 29, 1966 (unpublished).Google Scholar
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    W. C. Nixon, Chapter on x-ray microscopy, in Modern Methods of Microscopy (A. E. J. Vickers, ed.), Butterworth Scientific Publications, London, England (1956).Google Scholar
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    E. P. Bertin and R. J. Longobucco, Practical x-ray contact microradiography, Part 1, RCA Scientific Instrument News 5, 4 (1960); and Part 2, RCA Scientific Instrument News 6, 1 (1961), Radio Corporation of America, Camden, N. J. 08100.Google Scholar
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    E. M. Slayter, Optical Methods in Biology, Interscience Div., John Wiley and Sons, Inc., New York, N. Y. 10016 (1970).Google Scholar

Copyright information

© Plenum Press, New York 1978

Authors and Affiliations

  • Theodore George Rochow
    • 1
  • Eugene George Rochow
    • 2
  1. 1.North Carolina State University at RaleighRaleighUSA
  2. 2.Harvard UniversityCambridgeUSA

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