Signal versus noise in fiber coupled radiation dosimeters for medical applications

Susan H. Law, Natalka Suchowerska, Simon C. Fleming, A. Samad Beddar, David McKenzie

Research output: Contribution to journalConference articlepeer-review

6 Scopus citations

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 application, 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.

Original languageEnglish (US)
Pages (from-to)105-115
Number of pages11
JournalProceedings of SPIE - The International Society for Optical Engineering
Volume5317
DOIs
StatePublished - 2004
EventProgress in Biomedical Optics and Imaging - Optical Fibers and Sensors for Medical Applications IV - San Jose, CA, United States
Duration: Jan 24 2004Jan 25 2004

Keywords

  • Cerenkov radiation
  • Optical fibers
  • Radiation dosimeters
  • Radiation therapy
  • Scintillators

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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