14 MeV Neutron Irradiation Effect on Superconducting Magnet Materials for Fusion Device

Advances in cryogenic engineering Pub Date : 2006-04-21 DOI:10.1063/1.2192353

A. Nishimura, Y. Hishinuma, K. Seo, Teruya Tanaka, T. Muroga, S. Nishijima, K. Katagiri, T. Takeuchi, Y. Shindo, K. Ochiai, T. Nishitani, K. Okuno

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引用次数: 6

Abstract

As a large‐scale plasma experimental device is planned and designed, the importance of investigations on irradiation effect of 14 MeV neutron increases and an experimental database is desired to be piled up. Recently, intense streaming of fast neutron from ports are reported and degradation of superconducting magnet performance is anticipated. To investigate the pure neutron effect on superconducting magnet materials, a cryogenic target system was newly developed and installed at Fusion Neutronics Source in Japan Atomic Energy Research Institute. Although production rate of 14 MeV neutron is not large, only 14 MeV neutron can be supplied to irradiation test without gamma ray. Copper wires, superconducting wires, glass fiber reinforced composites are irradiated and the irradiation effects are characterized. At the same time, sensors for measuring temperature and magnetic field are irradiated and their performance was investigated after irradiation. This paper presents outline of the cryogenic target system and some irradiation test results.

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核聚变装置用超导磁体材料的14mev中子辐照效应

随着大型等离子体实验装置的规划和设计，研究14mev中子辐照效应的重要性日益增加，需要建立一个实验数据库。近年来，快中子从端口强烈流动的报道和超导磁体性能下降的预测。为了研究超导磁体材料的纯中子效应，在日本原子能研究所聚变中子源研制了一套低温靶系统。虽然14 MeV中子的产出率不大，但在没有伽马射线的情况下，只能提供14 MeV中子进行辐照试验。对铜线、超导线、玻璃纤维增强复合材料进行了辐照，并对辐照效果进行了表征。同时，对测量温度和磁场的传感器进行辐照，并对其辐照后的性能进行了研究。本文介绍了低温靶系统的概况和一些辐照试验结果。

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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Advances in cryogenic engineering

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