Korean J Med Phys.
2010 Mar;21(1):29-34.
Fabrication and Optimization of a Fiber-optic Dosimeter for Proton Beam Therapy Dosimetry
- Affiliations
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- 1School of Biomedical Engineering, Research Institute of Biomedical Engineering, College of Biomedical & Health Science, Konkuk University, Seoul, Korea. bslee@kku.ac.kr
- 2Proton Therapy Center, National Cancer Center, Seoul, Korea.
Abstract
- In this study, we have fabricated a fiber-optic dosimeter for a proton beam therapy dosimetry. We have measured scintillating lights with the various kinds of organic scintillators and selected the BCF-12 as a sensor-tip material due to its highest light output and peak/plateau ratio. To determine the optimum diameter of BCF-12, we have measured scintillating lights according to the energy losses of proton beams in a water phantom. Also, we determined the adequate length of organic scintillator by measuring scintillating lights according to the incident angles of proton beam. Using an optimized fiber-optic dosimeter, we have measured scintillating lights according to the dose rates and monitor units of proton accelerator.
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