title: Measurements of relative depth doses and Cerenkov light using a scintillating fiber-optic dosimeter with Co-60 radiotherapy source.
abstract: In this study, we fabricated a scintillating fiber-optic dosimeter, which consists of an organic scintillator and a plastic optical fiber, for radiotherapy dosimetry. To select an adequate kind and length of scintillator for γ-rays generated from a Co-60 source, scintillating light from various kinds and lengths of organic scintillators is measured. Using a scintillating fiber-optic dosimeter, the γ-rays generated from a Co-60 therapy unit are measured and relative doses are obtained according to the field size of the γ-ray beam and the depth in a water phantom. Also, Cerenkov light generated by the interactions of primary or secondary electrons and the plastic optical fiber is measured with different field sizes and depths of a water phantom using a background optical fiber.
authors: School of Biomedical Engineering, College of Biomedical and Health Science, Research Institute of Biomedical Engineering, Konkuk University, Chungju 380-701, Korea.
authors: Kyoung Won
authors: KW
authors: Jang
authors: Wook Jae
authors: WJ
authors: Yoo
authors: Jinsoo
authors: J
authors: Moon
authors: Ki Tek
authors: KT
authors: Han
authors: Jang-Yeon
authors: JY
authors: Park
authors: Bongsoo
authors: B
authors: Lee
mesh_terms: D003037:Cobalt Radioisotopes / Q000032:analysis*; D004867:Equipment Design; D019544:Equipment Failure Analysis; D005336:Fiber Optic Technology / Q000295:instrumentation*; D008027:Light; D011829:Radiation Dosage; D011874:Radiometry / Q000295:instrumentation*; D020266:Radiotherapy, Conformal / Q000295:instrumentation*; D015203:Reproducibility of Results; D012588:Scintillation Counting / Q000295:instrumentation*; D012680:Sensitivity and Specificity
chemical_list: D003037:Cobalt Radioisotopes