Calculation of fast neutron dose in plastic-coated optical fibres

RADECS 97. Fourth European Conference on Radiation and its Effects on Components and Systems (Cat. No.97TH8294) Pub Date : 1997-09-15 DOI:10.1109/RADECS.1997.698974

B. Siebert, H. Henschel

引用次数: 10

Abstract

The dose of fast neutrons in optical fibres with hydrogen-containing coating materials is considerably increased by energetic recoil protons. Their contribution to the dose in a SiO/sub 2/ fibre core is calculated by the Monte Carlo method for different fibre geometries and a fibre optic cable. With 14 MeV neutrons the dose in a single fibre is increased by about 21%, whereas in fibre bundles the dose increase can reach about 170%. Maximum dose enhancement in fibre bundles (about 610%) occurs at neutron energies around 5.5 MeV. The dose increase caused by 14 MeV neutrons in the fibre of a typical laboratory cable is about 124%.

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塑料包覆光纤快中子剂量的计算

高能反冲质子大大增加了含氢涂层光纤中快中子的剂量。它们对SiO/sub - 2/光纤芯中剂量的贡献是用蒙特卡罗方法计算不同光纤几何形状和光纤电缆的。对于14兆电子伏的中子，单个纤维中的剂量增加约21%，而在纤维束中，剂量增加可达到约170%。纤维束的最大剂量增强(约610%)发生在中子能量约5.5 MeV时。在典型的实验室电缆中，14mev中子引起的剂量增加约为124%。

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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RADECS 97. Fourth European Conference on Radiation and its Effects on Components and Systems (Cat. No.97TH8294)

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