Effects of neutrons and gamma-rays on polymethylmethacrylate plastic optical fiber

被引:10
|
作者
Toh, K. [1 ]
Sakasai, K. [1 ]
Nakamura, T. [1 ]
Soyama, K. [1 ]
Shikama, T. [2 ]
机构
[1] Japan Atom Energy Agcy, J PARC Ctr, Tokai, Ibaraki 3191195, Japan
[2] Tohoku Univ, Inst Mat Res, Sendai, Miyagi 9808577, Japan
关键词
PMMA; TEMPERATURE;
D O I
10.1016/j.jnucmat.2010.12.258
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The effects of neutron and gamma-ray irradiation on a polymethylmethacrylate (PMMA) plastic optical fiber (POE) were investigated. An improvement in the optical transmission was observed at the beginning of irradiation, but radiation damage (radiation-induced transmission loss in the visible wavelength range) increased as the irradiation continued. To determine the effects of neutrons and gamma-rays, the amount of energy absorbed in the PMMA POF was calculated using the PHITS codes. Energy deposition in the fiber was calculated considering nuclear reactions listed in the nuclear data file used for the Monte Carlo N-particle transport code. The effects of neutron and gamma radiation were observed to be similar with absorbed energy less than 1.2 kGy. However, the transmission loss induced by neutrons was larger than that induced by gamma-rays when higher energy was deposited. (C) 2011 Elsevier B.V. All rights reserved.
引用
收藏
页码:814 / 817
页数:4
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