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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: James C. Wyant
  • Vol. 46, Iss. 3 — Jan. 20, 2007
  • pp: 397–404

Optimal coupling of light from a cylindrical scintillator into an optical fiber

Justin Elsey, David R. McKenzie, Jamil Lambert, Natalka Suchowerska, Sue L. Law, and Simon C. Fleming  »View Author Affiliations


Applied Optics, Vol. 46, Issue 3, pp. 397-404 (2007)
http://dx.doi.org/10.1364/AO.46.000397


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Abstract

Radiation dose measurements based on scintillator detection are conveniently made by coupling the light from the scintillator into an optical fiber. The low light levels involved typically require sensitive photodetectors, so it is advantageous to increase the available signal by optimizing the optical coupling efficiency between the scintillator and optical fiber. We model thisprocess using geometric optics and finite-element ray tracing to determine the features that maximize the amount of light coupled to an optical fiber from a cylindrical scintillator. We also address whether the coupling can be improved by using an intermediate optical element such as a lens, and we provide a means for calculating its required optical properties for a given geometry.

© 2007 Optical Society of America

OCIS Codes
(000.1600) General : Classical and quantum physics
(000.4430) General : Numerical approximation and analysis
(080.0080) Geometric optics : Geometric optics

History
Original Manuscript: May 15, 2006
Manuscript Accepted: August 11, 2006
Published: January 4, 2007

Virtual Issues
Vol. 2, Iss. 2 Virtual Journal for Biomedical Optics

Citation
Justin Elsey, David R. McKenzie, Jamil Lambert, Natalka Suchowerska, Sue L. Law, and Simon C. Fleming, "Optimal coupling of light from a cylindrical scintillator into an optical fiber," Appl. Opt. 46, 397-404 (2007)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-46-3-397

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