
Proceedings Paper
Fiber dosimetry for radiation therapy validationFormat | Member Price | Non-Member Price |
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Paper Abstract
Radiation doses used in radiation therapy are calculated during the course of treatment planning. Cross-validation of
calculated dose versus received dose is performed mostly in-vitro and may not represent actual therapy doses. In vivo
measurements are at best typically limited to a few surface points. Presently, dose is measured primarily with diodes,
thermoluminescent or MOSFET dosimeters. Their outer sizes are in the range of 3 mm, which are unpractical for in
vivo internal use, in particular for interstitial or intracavital brachytherapy. In addition, diode and MOSFET sensors
are individually tethered to cables and are therefore inconvenient for making multiple point measurements.
Feasibility of multiple point radiation dosimetry using luminescent optical fibers for in vivo dosimetry during
radiation therapy is described that overcomes these difficulties. The spectral response of a candidate rare-earth doped
optical fiber dosimetric probe is reported, having 0.5 rads/cm sensitivity. This sensor capability would enable
continuous radiation monitoring of dose and dose rate during therapy at multiple locations along the sensor fiber.
Paper Details
Date Published: 13 February 2008
PDF: 5 pages
Proc. SPIE 6852, Optical Fibers and Sensors for Medical Diagnostics and Treatment Applications VIII, 68520L (13 February 2008); doi: 10.1117/12.784735
Published in SPIE Proceedings Vol. 6852:
Optical Fibers and Sensors for Medical Diagnostics and Treatment Applications VIII
Israel Gannot, Editor(s)
PDF: 5 pages
Proc. SPIE 6852, Optical Fibers and Sensors for Medical Diagnostics and Treatment Applications VIII, 68520L (13 February 2008); doi: 10.1117/12.784735
Show Author Affiliations
I. Saxena, Intelligent Optical Systems, Inc. (United States)
G. Jozsef, New York Univ. Cancer Ctr. (United States)
Published in SPIE Proceedings Vol. 6852:
Optical Fibers and Sensors for Medical Diagnostics and Treatment Applications VIII
Israel Gannot, Editor(s)
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