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Fabrication and Optimization of a Fiber-optic Dosimeter for Proton Beam Therapy Dosimetry  

Jang, Kyoung-Won (School of Biomedical Engineering, Research Institute of Biomedical Engineering, College of Biomedical & Health Science, Konkuk University)
Cho, Dong-Hyun (School of Biomedical Engineering, Research Institute of Biomedical Engineering, College of Biomedical & Health Science, Konkuk University)
Yoo, Wook-Jae (School of Biomedical Engineering, Research Institute of Biomedical Engineering, College of Biomedical & Health Science, Konkuk University)
Seo, Jeong-Ki (School of Biomedical Engineering, Research Institute of Biomedical Engineering, College of Biomedical & Health Science, Konkuk University)
Lee, Bong-Soo (School of Biomedical Engineering, Research Institute of Biomedical Engineering, College of Biomedical & Health Science, Konkuk University)
Hwang, Eui-Jung (Proton Therapy Center, National Cancer Center)
Shin, Dong-Ho (Proton Therapy Center, National Cancer Center)
Park, Sung-Yong (Proton Therapy Center, National Cancer Center)
Publication Information
Progress in Medical Physics / v.21, no.1, 2010 , pp. 29-34 More about this Journal
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.
Keywords
Dosimeter; Optical fiber; Organic scintillator; Proton beam;
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