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Applied Optics

Applied Optics


  • Vol. 13, Iss. 11 — Nov. 1, 1974
  • pp: 2589–2601

Gamma-Ray Imaging with Stochastic Apertures

Randall S. May, Ziya Akcasu, and Glenn F. Knoll  »View Author Affiliations

Applied Optics, Vol. 13, Issue 11, pp. 2589-2601 (1974)

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The spatial distribution of a radioactive fluid can be measured indirectly by observing the emerging gamma rays. A method is proposed and analyzed for gamma-ray imaging by stochastic time modulation and cross-correlation. Theoretical comparison is made to collimation and coded aperture techniques in gamma-ray image formation. Computed results are presented that illustrate the mean response and statistical error characteristics of this technique. Monte Carlo simulations are performed as a further verification. Because it relies upon a point-by-point reconstruction, rather than upon the integral properties of any particular aperture, the time modulation approach is seen to provide a theoretical basis for obtaining a smooth three-dimensional point response.

© 1974 Optical Society of America

Original Manuscript: November 23, 1973
Published: November 1, 1974

Randall S. May, Ziya Akcasu, and Glenn F. Knoll, "Gamma-Ray Imaging with Stochastic Apertures," Appl. Opt. 13, 2589-2601 (1974)

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