Title :
Measurements of Cerenkov radiations in a scintillating fiber-optic dosimeter using a photodiode and a charge-coupled device
Author :
Jang, Kyoung Won ; Shin, Sang Hun ; Cho, Dong Hyun ; Yoo, Wook Jae ; Seo, Jeong Ki ; Chung, Soon-Cheol ; Lee, Bongsoo ; Park, Byung Gi ; Moon, Joo Hyun ; Cho, Hyosung ; Kim, Sin
Author_Institution :
Sch. of Biomed. Eng., Konkuk Univ., Chungju
fDate :
Nov. 30 2008-Dec. 3 2008
Abstract :
Usually, two kinds of light signals such as scintillating and Cerenkov light are generated in a fiber-optic dosimeter when a high energy electron beam is irradiated. The objectives of this study are to measure, characterize and remove a Cerenkov light generated in a scintillating fiber-optic dosimeter. The intensity of Cerenkov light is measured and characterized as a function of incident angle of electron beam from a linear accelerator, as a function of electron beam energy, and as a function of electron beam size using a photodiode amp system and a charge-coupled device. Also, a subtraction method using a background optical fiber without a scintillator is investigated to remove a Cerenkov light.
Keywords :
Cherenkov radiation; charge-coupled devices; dosimeters; photodiodes; scintillation; Cerenkov light; Cerenkov radiation; charge-coupled device; high energy electron beam; light signals; photodiode; scintillating fiber-optic dosimeter; scintillating light; Character generation; Current measurement; Electron beams; Energy measurement; Linear accelerators; Optical fiber devices; Optical fibers; Photodiodes; Signal generators; Size measurement; Cerenkov light; electron beam; fiber-optic dosimeter; organic scintillator;
Conference_Titel :
Sensing Technology, 2008. ICST 2008. 3rd International Conference on
Conference_Location :
Tainan
Print_ISBN :
978-1-4244-2176-3
Electronic_ISBN :
978-1-4244-2177-0
DOI :
10.1109/ICSENST.2008.4757151
