Fiber-based dosimeters for applications in radiotherapy

Arash Darafsheh

doi:10.1117/12.2515241

14 May 2019 Fiber-based dosimeters for applications in radiotherapy

Arash Darafsheh

Proceedings Volume 11000, Fiber Optic Sensors and Applications XVI; 110000H (2019) https://doi.org/10.1117/12.2515241
Event: SPIE Defense + Commercial Sensing, 2019, Baltimore, MD, United States

Abstract

Optical fiber-based probes are promising candidates for many applications in radiotherapy dosimetry and quality assurance due to their unique properties including the ability to perform in vivo, real-time, and intracavitary measurements with high spatial resolution. However, a significant issue related to fiber optic dosimetry of photon and proton therapies is Čerenkov radiation generated in the optical fibers. We have designed, fabricated, and characterized fiber probes composed of solid core and hollow core fibers in conjunction with scintillators for radiotherapy dosimetry. Using a spectroscopic method to subtract the Čerenkov contamination, we showed good agreement between our fiber probe and standard ionization chamber measurements.

Citation Download Citation

Arash Darafsheh "Fiber-based dosimeters for applications in radiotherapy", Proc. SPIE 11000, Fiber Optic Sensors and Applications XVI, 110000H (14 May 2019); https://doi.org/10.1117/12.2515241

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