Fiber optic radioluminescent probes for radiation therapy dosimetry

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

5 Scopus citations


Radioluminescent fiber optic dosimeters have drawn great attention due to their unique practical advantageous properties including the ability to perform in vivo, real-Time, and intracavity measurements with high spatial resolution due to their small physical size and mechanical flexibility. These features make them ideal candidates for many potential applications in radiation therapy dosimetry, such as in brachytherapy, intensity-modulated radiation therapy, superficial therapy, stereotactic radiosurgery, proton therapy, and small-field dosimetry. However, in therapeutic radiation fields, the total optical signal carried by the fiber has undesirable components in addition to the useful radioluminescent signal. The main problem with fiber optic dosimeters in photon and electron therapies is these undesirable signals that are primarily the Äerenkov radiation generated in the irradiated portion of the guide fiber. Another significant issue related to scintillation fiber optic dosimetry that occurs in proton therapy and other beams with high linear energy transfer (LET) is the non-proportionality between the scintillation signal and the proton dose due to the ionization quenching. In this work, recent progress toward minimizing the impact of Äerenkov radiation and ionization quenching through using spectroscopic methods, specialty fiber optics, and undoped fibers is briefly reviewed.

Original languageEnglish
Title of host publicationOptical Fibers and Sensors for Medical Diagnostics and Treatment Applications XIX
EditorsIsrael Gannot, Israel Gannot
ISBN (Electronic)9781510623866
StatePublished - 2019
EventOptical Fibers and Sensors for Medical Diagnostics and Treatment Applications XIX 2019 - San Francisco, United States
Duration: Feb 2 2019Feb 3 2019

Publication series

NameProgress in Biomedical Optics and Imaging - Proceedings of SPIE
ISSN (Print)1605-7422


ConferenceOptical Fibers and Sensors for Medical Diagnostics and Treatment Applications XIX 2019
Country/TerritoryUnited States
CitySan Francisco


  • Cerenkov radiation
  • Dosimetry
  • Hollow waveguide
  • Optical fiber
  • Radiation therapy
  • Spectroscopy.


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