title: Water-equivalent one-dimensional scintillating fiber-optic dosimeter for measuring therapeutic photon beam.
abstract: In this study, we fabricated a one-dimensional scintillating fiber-optic dosimeter, which consists of 9 scintillating fiber-optic dosimeters, septa, and PMMA blocks for measuring surface and percentage depth doses of a therapeutic photon beam. Each dosimeter embedded in the 1-D scintillating fiber-optic dosimeter is composed of square type organic scintillators and plastic optical fibers. Also black PVC films are used as septa to minimize cross-talk between the scintillating fiber-optic dosimeters. To construct a dosimeter system, a 1-D scintillating fiber-optic dosimeter and a CMOS image sensor were combined with 20 m-length plastic optical fibers. Using the dosimeter system, we measured surface and percentage depth doses of 6 and 15 MV photon beams and compared the results with those of EBT films and an ionization chamber.
authors.affiliation: School of Biomedical Engineering, College of Biomedical & Health Science, Research Institute of Biomedical Engineering, Konkuk University, Chungju 380-701, Republic of Korea.
authors.forename: Jinsoo
authors.initials: J
authors.lastname: Moon
authors.forename: Kyoung Won
authors.initials: KW
authors.lastname: Jang
authors.forename: Wook Jae
authors.initials: WJ
authors.lastname: Yoo
authors.forename: Ki-Tek
authors.initials: KT
authors.lastname: Han
authors.forename: Jang-Yeon
authors.initials: JY
authors.lastname: Park
authors.forename: Bongsoo
authors.initials: B
authors.lastname: Lee
mesh_terms: D005336:Fiber Optic Technology / Q000295:instrumentation; D017785:Photons; D011879:Radiotherapy Dosage; D012588:Scintillation Counting / Q000295:instrumentation / Q000379:methods; D014867:Water
chemical_list: D014867:Water