Mechanical and quasi-optical design of ECH/ECCD launcher for JT-60SA

被引：4
|
作者：
Kobayashi, Takayuki [1 ]
Moriyama, Shinichi [1 ]
Isayama, Akihiko [1 ]
Hiranai, Shinichi [1 ]
Yokokura, Kenji [1 ]
Sawahata, Masayuki [1 ]
Terakado, Masayuki [1 ]
Wada, Kenji [1 ]
Sato, Yoshikatsu [1 ]
Hinata, Jun [1 ]
Hoshino, Katsumichi [1 ]
Takahashi, Koji [1 ]
Kajiwara, Ken [1 ]
Oda, Yasuhisa [1 ]
Ikeda, Ryosuke [1 ]
Sakamoto, Keishi [1 ]
机构：
[1] Japan Atom Energy Agcy, Naka, Ibaraki 3110193, Japan
来源：
FUSION ENGINEERING AND DESIGN | 2015年 / 96-97卷
关键词：
ECH; ECCD; Launcher; Mock-up; Higher order mode; ECRF SYSTEM; ANTENNA;
D O I：
10.1016/j.fusengdes.2015.02.036
中图分类号：
TL [原子能技术]; O571 [原子核物理学];
学科分类号：
0827 ; 082701 ;
摘要：
Mechanical and quasi-optical design of an electron cyclotron heating/current drive launcher for JT-60SA is in progress. A full-scale mock-up of the steering structure, which enables linear and rotation motions of the first mirror of the launcher, has been fabricated for cyclic test of the bellows part. Moreover, an improved design enables easy replacement of the bellows for rotation for maintenance. Quasi-optical characteristics of the antenna mirrors have been studied to evaluate its transmission efficiency and beam focusing property. In calculation, it was found that the antenna is applicable to two frequency operation at 110 GHz and 138 GHz. It was quantitatively shown that the transmission efficiency of similar to 99% (not including Ohmic loss) is obtained even with the higher order mode (LP11even) fraction of 10% by optimizations of the shape of the first mirror. These results contribute to optimization/finalization of the launcher design toward fabrication of the launcher for JT-60SA. (C) 2015 Elsevier B.V. All rights reserved.
引用
收藏
页码：503 / 507
页数：5
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