Measurements of Cerenkov radiations in a scintillating fiber-optic dosimeter using a photodiode and a charge-coupled device

K. Jang, S. Shin, D. Cho, W. Yoo, J. Seo, Soon-Cheol Chung, Bongsoo Lee, B. Park, J. Moon, Hyosung Cho, Sin Kim
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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.
用光电二极管和电荷耦合装置测量闪烁光纤剂量计中的切伦科夫辐射
通常,当高能电子束照射在光纤剂量计中时,会产生闪烁光和切伦科夫光两种光信号。本研究的目的是测量、表征和去除闪烁光纤剂量计中产生的切伦科夫光。利用光电二极管放大器系统和电荷耦合装置测量了切伦科夫光的强度,并将其表征为线性加速器电子束入射角的函数、电子束能量的函数和电子束尺寸的函数。此外,本文还研究了一种利用无闪烁体的背景光纤去除切伦科夫光的方法。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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