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Journal of the Optical Society of America

Journal of the Optical Society of America

  • Vol. 52, Iss. 7 — Jul. 1, 1962
  • pp: 774–775

Modulation Transfer Function of Radiographic Systems Using Fluorescent Screens

K. ROSSMANN  »View Author Affiliations

JOSA, Vol. 52, Issue 7, pp. 774-775 (1962)

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When radiographic film is exposed with fluorescent intensifying screens, the spatial x-ray quantum fluctuations are recorded on the film in the form of density fluctuations (“quantum mottle”). The x-ray quantum fluctuations can be regarded as the input and the quantum mottle as the output of the image-forming system. The Wiener spectrum of the quantum mottle has been used to determine the relative modulation transfer function of two radiographic systems.

K. ROSSMANN, "Modulation Transfer Function of Radiographic Systems Using Fluorescent Screens," J. Opt. Soc. Am. 52, 774-775 (1962)

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  1. This term is now being used by the Kodak Research Laboratories in place of what has been variously called "sine-wave response," "contrast-transmission function," etc., in accordance with recommendations formulated in July 1961 by the Sub-committee for Image Assessment Problems of the International Commission for Optics.
  2. F. H. Perrin, J. Soc. Motion Picture and Television Engrs. 69, 239 (1960).
  3. J. W. Coltman, J. Opt. Soc. Am. 44, 468 (1954).
  4. K. Rossmann and H. E. Seemann, Am. J. Roentgenology 85, 366 (1961).
  5. H. M. Cleare, H. R. Splettstosser, and H. E. Seemann (private communication).
  6. J. W. Coltman, E. G. Ebbighausen, and W. Altar, J. Appl. Phys. 18, 530 (1947).
  7. R. E. Sturm and R. H. Morgan, Am. J. Roentgenology 62, 617 (1949).
  8. R. C. Jones, J. Opt. Soc. Am. 45, 799 (1955).
  9. K. F. Stultz and H. J. Zweig, J. Opt. Soc. Am. 49, 693 (1959).
  10. E. C. Doerner and K. Rossmann, "Power spectrum analysis of the granularity of photographic prints and x-ray materials," presented at the Pittsburgh meeting of the Optical Society of America, Spring 1961.
  11. This is not the "intensifying factor" of a screen, which is a term used in radiography.
  12. R. L. Lamberts, J. Opt. Soc. Am. 49, 425 (1959).

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