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

fYear

2008

fDate

Nov. 30 2008-Dec. 3 2008

Firstpage

477

Lastpage

480

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/ICSENST.2008.4757151

Filename

4757151