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Korean Journal of Medical Physics 2010; 21(1): 29-34

Published online March 25, 2010

Copyright © Korean Society of Medical Physics.

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

의료용 양성자선 계측을 위한 광섬유 방사선량계의 제작 및 최적화

Kyoung Won Jang*, Dong Hyun Cho*, Wook Jae Yoo*, Jeong Ki Seo*, Bongsoo Lee*, Eui Jung Hwang, Dongho Shin, Sung-Yong Park

장경원*ㆍ조동현*ㆍ유욱재*ㆍ서정기*ㆍ이봉수*ㆍ황의중ㆍ신동호ㆍ박성용

*School of Biomedical Engineering, Research Institute of Biomedical Engineering, College of Biomedical & Health Science, Konkuk University,Proton Therapy Center, National Cancer Center, Seoul, Korea

*건국대학교 의학공학부 의공학실용기술연구소, 국립암센터 양성자치료센터

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.

KeywordsDosimeter, Optical fiber, Organic scintillator, Proton beam

Korean Society of Medical Physics

Vol.35 No.3
September 2024

pISSN 2508-4445
eISSN 2508-4453
Formerly ISSN 1226-5829

Frequency: Quarterly

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