Engineering design for the magnetic diagnostics of Wendelstein 7-X

被引：38

作者：

Endler, M. ^{[1
]}

Brucker, B. ^{[1
]}

Bykov, V. ^{[1
]}

Cardella, A. ^{[1
]}

Cads, A. ^{[1
]}

Dobmeier, F. ^{[1
]}

Dudek, A. ^{[1
]}

Fellinger, J. ^{[1
]}

Geiger, J. ^{[1
]}

Grosser, K. ^{[1
]}

Grulke, O. ^{[1
]}

Hartmann, D. ^{[1
]}

Hathiramani, D. ^{[1
]}

Hoechel, K. ^{[1
]}

Koeppen, M. ^{[1
]}

Laube, R. ^{[1
]}

Neuner, U. ^{[1
]}

Peng, X. ^{[1
]}

Rahbarnia, K. ^{[1
]}

Rummel, K. ^{[1
]}

Sieber, T. ^{[1
]}

Thiel, S. ^{[1
]}

Vorkoeper, A. ^{[1
]}

Werner, A. ^{[1
]}

Windisch, T. ^{[1
]}

Ye, M. Y. ^{[1
]}

机构：

[1] Max Planck Inst Plasma Phys, D-17491 Greifswald, Germany

来源：

FUSION ENGINEERING AND DESIGN | 2015年 / 100卷

关键词：

Stellarator; Wendelstein; 7-X; Magnetic diagnostics; ANISOTROPIC PRESSURE; W7-X; PHYSICS; OPERATION; PLASMA;

D O I：

10.1016/j.fusengdes.2015.07.020

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：

The magnetic diagnostics foreseen for the Wendelstein 7-X (W7-X) stellarator are diamagnetic loops to measure the plasma energy, Rogowski coils to measure the toroidal plasma current, saddle coils to measure the Pfirsch-Schluter currents, segmented Rogowski coils (poloidal magnetic field probes) to add information on the distribution of the plasma current density, and Mirnov coils to observe magnetohy-drodynamic modes. All these magnetic field sensors were designed as classical pick-up coils, after the time integration of induced signals for 1/2 hour had been successfully demonstrated. The long-pulse operation planned for W7-X causes nevertheless significant challenges to the design of these diagnostics, in particular for the components located inside the plasma vessel, which may be exposed to high levels of microwave (electron cyclotron resonance) stray radiation and thermal radiation. This article focuses on the tests and modelling performed during the development of the magnetic diagnostics and on the design solutions adopted to meet the conflicting requirements. All pick-up coils foreseen for the initial operation phase of W7-X and their signal cable sections inside the plasma vessel and the cryostat are now installed, and their electronics and data acquisition are under preparation. (C) 2015 Elsevier B.V. All rights reserved.

引用

页码：468 / 494

页数：27

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