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Proceedings Paper

Signal versus noise in fiber-coupled radiation dosimeters for medical applications
Author(s): Susan H. Law; Natalka Suchowerska; Simon C. Fleming; A. Samad Beddar; David R. McKenzie
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Paper Abstract

The utilization of scintillation light as a measure of radiation dose has many attractive features for medical applications. When high doses of ionizing radiation are being administered to cancer patients, precise and accurate dosimetry in terms of absolute dose and its location are essential. Fiber Optic Dosimeters [FOD] are unique in this pplication, since compared to other medical radiation dosimeters, they are smaller, more reliable and most significantly, they are human tissue equivalent. The principal limitation of the FOD is its signal to noise ratio, a feature that we discuss in terms of materials science and physical optics. The aim of this study is to outline a theoretical approach to dosimeter design based on geometrical optics that has the potential to increase the signal and decrease the noise.

Paper Details

Date Published: 10 June 2004
PDF: 11 pages
Proc. SPIE 5317, Optical Fibers and Sensors for Medical Applications IV, (10 June 2004); doi: 10.1117/12.540735
Show Author Affiliations
Susan H. Law, Univ. of Sydney (Australia)
Natalka Suchowerska, Royal Prince Alfred Hospital (Australia)
Univ. of Sydney (Australia)
Simon C. Fleming, Univ. of Sydney (Australia)
A. Samad Beddar, Univ. of Texas M. D. Anderson Cancer Ctr. (United States)
David R. McKenzie, Univ. of Sydney (Australia)

Published in SPIE Proceedings Vol. 5317:
Optical Fibers and Sensors for Medical Applications IV
Israel Gannot, Editor(s)

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