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Journal of the Optical Society of America

Journal of the Optical Society of America

  • Vol. 46, Iss. 11 — Nov. 1, 1956
  • pp: 934–934

Shielding of Radiation from a Plane Circular Source

P. M. ANSELONE and F. SOBEL  »View Author Affiliations

JOSA, Vol. 46, Issue 11, pp. 934-934 (1956)

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The angular distribution of radiation intensity emitted from a plane circular source is altered by an attached cylindrical shield. Under the assumption of cylindrical symmetry, explicit expressions are obtained for the angular intensity distribution of the radiation emerging from the mouth of the shield. The source is characterized by an intensity which is a function of the point of emission and the direction of emission. The shield is characterized by its length-to-diameter ratio and by the reflectivity of its inner surface. The reflectivity is not necessarily uniform. The general result is an infinite series of integrals over subregions of the source area. For certain cases these integrals are evaluated in terms of elementary mathematical functions.

P. M. ANSELONE and F. SOBEL, "Shielding of Radiation from a Plane Circular Source," J. Opt. Soc. Am. 46, 934-934 (1956)

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  1. F. P. Bundy and H. M. Strong, J. Opt. Soc. Am. 39, 393 (1949).
  2. Parsons, Irland, and Bryan, J. Opt. Soc. Am. 46, 164 (1956).

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