Radiation distribution sensing with normal optical fiber

被引:17
作者
Naka, R [1 ]
Watanabe, K
Kawarabayashi, J
Uritani, A
Iguchi, T
Hayashi, N
Kojima, N
Yoshida, T
Kaneko, J
Takeuchi, H
Kakuta, T
机构
[1] Nagoya Univ, Dept Nucl Engn, Nagoya, Aichi 4648603, Japan
[2] Japan Nucl Cycle Dev Inst, Ibaraki 3191194, Japan
[3] Japan Atom Energy Res Inst, Ibaraki 3191195, Japan
关键词
D O I
10.1109/23.983266
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
The purpose of this study is to develop a radiation distribution monitor using a normal plastic optical fiber. The monitor has a long operating length and can obtain continuous radiation distributions. A principle of the position sensing is based on a time-of-flight technique. The monitor is sensitive to beta rays or charged particles, gamma rays, and fast neutrons. The spatial resolutions for beta-rays (Sr-90-Y-90), gamma-rays (Cs-137), and D-T neutrons are 30,37, and 13 cm, respectively. The detection efficiencies for the beta-rays, gamma-rays, and D-T neutrons are 0.11%, 1.6 X 10(-5)% and 1.2 x 10(-4)%, respectively. The effective attenuation length of the detection efficiency is 18 m. In this paper, we describe the basic characteristics of this monitor.
引用
收藏
页码:2348 / 2351
页数:4
相关论文
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