Options for the use of high temperature superconductor in tokamak fusion reactor designs
Options for the use of high temperature superconductor in tokamak fusion reactor designs
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DOI：
10.1016/s0920-3796(00)00432-4
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发表时间：
2001-02-01
影响因子：
1.7
通讯作者：
Miller, R
中科院分区：
文献类型：
--
作者：
Bromberg, L;Tekula, M;Miller, R
分析了高温超导体在长期托卡马克聚变反应堆中的应用。高温超导体的物理性质被充分记录在评估中。Bi2Sr2CanCun+1Oy短样线带。n = 1,2的材料（称为BSCCO）和YBCO （YBa2CuO7-x）磁带接近其单晶性能极限。它们提供了一个有用的参考框架，以及未来可能发生的事情的起点。在本文中，将通过将YBCO短样品厚膜和BSCCO带的特性外推到更长的长度来研究该技术用于托卡马克磁体应用时出现的设计问题。本文还总结了YBCO在高温（bbb10 K）下的性能。对高温超导材料的性能和寿命所受的限制进行了综述。然后将描述在融合环境中实现HTS配置的后果。I-ITS材料的使用可能为磁铁设计和制造提供一种根本不同的方法，从而降低成本或减少维护。低成本磁铁需要减少屏蔽，更好的访问和更容易维护可能是可行的。(C) 2001 Elsevier Science B.V.版权所有
The use of high temperature superconductors (HTS) in long term tokamak fusion reactors is analyzed in this paper. The well-documented physical al properties of high temperature superconductors are used in the evaluation. Short-sample wires and tapes of Bi2Sr2CanCun+1Oy. materials, with n = 1, 2 (referred to as BSCCO), and YBCO (YBa2CuO7-x) tapes approach their single-crystal performance limits. They provide a useful reference frame as well as a starting point of what may be possible in the future. In this paper, the design issues that arise when this technology is used in tokamak magnet applications will be investigated by extrapolating the properties of short sample YBCO thick films and BSCCO tapes to longer lengths. The properties of YBCO operating at elevated temperatures ( > 10 K) will also be summarized. The limitations imposed on the performance and lifetime of the HTS materials because of the fusion environment will be reviewed. The consequences of implementing an HTS configuration in a fusion environment will then be described. The use of I-ITS material may offer an opportunity for a fundamentally different approach to magnet design and construction leading to either lower cost or reduced maintenance. Reduced cost magnets requiring decreased shielding, with better access and easier maintenance may be feasible. (C) 2001 Elsevier Science B.V. All rights reserved.