Optimization of ECE diagnostics for the W7-X stellarator

被引：7
|
作者：
Marushchenko, N. B. [1 ]
Dinklage, A. [1 ]
Hartfuss, H. J. [1 ]
Hirsch, M. [1 ]
Maassberg, H. [1 ]
Turkin, Yu. [1 ]
机构：
[1] EURATOM, Max Planck Inst Plasmaphys, Teilinst Greifswald, D-17491 Greifswald, Germany
来源：
FUSION SCIENCE AND TECHNOLOGY | 2006年 / 50卷 / 03期
关键词：
plasma diagnostics; electron cyclotron emission; suprathermal electrons;
D O I：
10.13182/FST06-A1261
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：
Accuracy and abilities of the electron cyclotron emission (ECE) diagnostic system planned to be installed in the Wendelstein 7-X stellarator are analysed with help of ray-tracing simulations. For the expected plasma parameters, the spatial resolution of the standard low-field-side (lfs) X2-mode observation scheme is estimated to be sufficiently high, similar to 5%. Apart from the Ifs scheme, the applicability of other complementary schemes is analyzed, in particular, high-field-side (hfs) X2-mode observation. It is shown that in combination with the standard Ifs scheme, the hfs scheme can be very informative for the problem of distinguishing thermal and nonthermal contributions in the ECE spectrum.
引用
收藏
页码：395 / 402
页数：8
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