Aspects of steady-state operation of the Wendelstein 7-X stellarator

被引:27
作者
Geiger, J. [1 ,2 ]
Wolf, R. C. [1 ,2 ]
Beidler, C. [1 ,2 ]
Cardella, A. [1 ,2 ]
Chlechowitz, E. [1 ,2 ]
Erckmann, V. [1 ,2 ]
Gantenbein, G. [3 ]
Hathiramani, D. [1 ,2 ]
Hirsch, M. [1 ,2 ]
Kasparek, W. [4 ]
Kisslinger, J. [1 ,2 ]
Koenig, R. [1 ,2 ]
Kornejew, P. [1 ,2 ]
Laqua, H. P. [1 ,2 ]
Lechte, C. [4 ]
Lore, J. [5 ]
Lumsdaine, A. [5 ]
Maassberg, H. [1 ,2 ]
Marushchenko, N. B. [1 ,2 ]
Michel, G. [1 ,2 ]
Otte, M. [1 ,2 ]
Peacock, A. [1 ,2 ]
Pedersen, T. Sunn [1 ,2 ]
Thumm, M. [3 ]
Turkin, Y. [1 ,2 ]
Werner, A. [1 ,2 ]
Zhang, D. [1 ,2 ]
机构
[1] Max Planck Inst Plasma Phys, EURATOM Assoc, D-8046 Garching, Germany
[2] Max Planck Inst Plasma Phys, EURATOM Assoc, Greifswald, Germany
[3] EURATOM, Karlsruhe Inst Technol, IHM, Karlsruhe, Germany
[4] Univ Stuttgart, Inst Plasma Res, Stuttgart, Germany
[5] Oak Ridge Natl Lab, Oak Ridge, TN USA
关键词
PHYSICS; OPTIMIZATION;
D O I
10.1088/0741-3335/55/1/014006
中图分类号
O35 [流体力学]; O53 [等离子体物理学];
学科分类号
070204 ; 080103 ; 080704 ;
摘要
The objective of Wendelstein 7-X is to demonstrate steady-state operation at beta-values of up to 5%, at ion temperatures of several keV and plasma densities of up to 2 x 10(20) m(-3). The second operational phase foresees a fully steady-state high heat flux (HHF) divertor. Preparations are underway to cope with residual bootstrap currents, either by electron cyclotron current drive or by HHF protection elements. The main steady-state heating system is an electron cyclotron resonance heating facility. Various technical improvements of the gyrotrons have been implemented recently. They enable a reliable operation at the 1 MW power level. Some of the technical issues preparing plasma diagnostics for steady-state operation are exemplified. This includes the protection against non-absorbed microwave radiation.
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页数:6
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