Development of an indirectly cooled superconductor for the LHD fusion reactor FFHR

被引：0

作者：

Takahata, Kazuya ^{[1
]}

Tamura, Hitoshi ^{[1
]}

Mito, Toshiyuki ^{[1
]}

Imagawa, Shinsaku ^{[1
]}

Sagara, Akio ^{[1
]}

机构：

[1] National Institute for Fusion Science, 322-6 Oroshi-cho, Toki,509-5292, Japan

来源：

Plasma and Fusion Research | 2014年 / 9卷 / SpecialIssue2期

关键词：

Superconducting cables - Aluminum alloys - Tin alloys - Friction stir welding - Superconducting materials - Binary alloys;

D O I：

10.1585/pfr.9.3405034

中图分类号：

学科分类号：

摘要：

A 100-kA indirectly cooled superconductor has been designed and optimized for the heliotron fusion power reactor FFHR. A doubly transposed Rutherford cable composed of 216 Nb3Sn superconducting wires is embedded in an aluminum-alloy jacket with a high filling factor. Additional high purity aluminum strips around the cable reduce the hotspot temperature to 150 K. The final design has a rectangular cross section that is 100mm wide and 25mm high, which will achieve an operating current of 100 kA at a current density of 40A/mm2. A prototype of the conductor was developed to demonstrate the fabrication process. The prototype has the same configuration as the design, except that the aluminum strips are eliminated. © 2014 The Japan Society of Plasma Science and Nuclear Fusion Research.

引用

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