Mirror development for the 140 GHz ECRH system of the stellarator W7-X

被引：16

作者：

Hailer, H

Dammertz, G

Erckmann, V

Gantenbein, G

Hollmann, F

Kasparek, W

Leonhardt, W

Schmid, M

Schüller, PG

Thumm, M

Weissgerber, M

机构：

[1] Univ Stuttgart, Inst Plasmaforsch, D-70569 Stuttgart, Germany

[2] EURATOM, IPP, Max Planck Inst Plasmaphys, D-17491 Greifswald, Germany

[3] EURATOM, Forschungszentrum Karlsruhe, FZK, IHM, D-76021 Karlsruhe, Germany

来源：

FUSION ENGINEERING AND DESIGN | 2003年 / 66-68卷

关键词：

mirror development; ECRH; stellarator W7-X; mirror cooling;

D O I：

10.1016/S0920-3796(03)00264-3

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：

For the future stellarator W7-X in Greifswald, a powerful electron cyclotron resonance heating (ECRH) system at 140 GHz with a total RF power of 10 MW CW is under construction. The transmission of the radiation from the gyrotron hall to the machine will be realized via a fully optical system consisting of more than 160 water cooled mirrors. This paper describes the design of the mirrors and presents results of calculations of the thermo-mechanical properties. Experimental verification of the calculations showed that mirror deformation under application of a heat load equivalent to the absorbed power from a 1 MW mm-wave beam is in the tolerable range. Water cooled mirrors of the single-beam type have been used successfully during conditioning of a prototype gyrotron with a mm-wave power of 850 kW and a pulse length of up to 180 s. To test and optimize in-situ measurements of beam parameters and power of the CW ECRH system on W7-X, these mirrors are equipped with different diagnostics. (C) 2003 Elsevier Science B.V. All rights reserved.

引用

页码：639 / 644

页数：6

共 23 条

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