Development of an ICRH antenna system at W7-X for plasma heating and wall conditioning

被引：17

作者：

Schweer, B. ^{[1
]}

Ongena, J. ^{[1
]}

Borsuk, V. ^{[4
]}

Birus, D. ^{[4
]}

Bozhenkov, S. ^{[4
]}

Bardawil, D. Castano ^{[2
]}

Durodie, F. ^{[1
]}

Hartmann, D. ^{[4
]}

Hollfeld, K. P. ^{[3
]}

Kallmeyer, P. ^{[4
]}

Krivska, A. ^{[1
]}

Louche, F. ^{[1
]}

Messiaen, A. ^{[1
]}

Neubauer, O. ^{[2
]}

Offermanns, G. ^{[3
]}

Satheeswaran, G. ^{[2
]}

Van Schoor, M. ^{[1
]}

Vervier, M. ^{[1
]}

Wolf, R. ^{[4
]}

机构：

[1] LPP, Trilateral Euregio Cluster, ERM KMS, B-1000 Brussels, Belgium

[2] Forschungszentrum Julich, Trilateral Euregio Cluster, IEK 4, D-52425 Julich, Germany

[3] Forschungszentrum Julich, ZEA 1, D-52425 Julich, Germany

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

来源：

FUSION ENGINEERING AND DESIGN | 2017年 / 123卷

关键词：

W7-X; ICRH antenna; Heating; Fast particle generation; Wall conditioning;

D O I：

10.1016/j.fusengdes.2017.05.019

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：

An ICRH antenna system is under construction to be ready for use in the operational phase 1.2 of W7-X. A two strap antenna, with a surface adapted to the 3D shape of the Last Closed Flux Surface (LCFS) of the standard magnetic configuration (m/n=5/5), will be installed in the equatorial plane on the low field side of W7-X. The antenna system is optimised for plasma heating and wall conditioning in presence of the magnetic field in the frequency range 25-38 MHz. Each strap is short-circuited on one end, is pre-matched using a tunable capacitor on the other end with connection to the RF power source about halfway in the poloidal direction. To allow optimal coupling to different magnetic configurations in W7-X the antenna can be moved radially over a distance of 350 mm. The cooling circuits in the antenna head are designed to sustain cw W7-X plasma operation in a retracted position and 2 MW ICRH pulses with maximum 10 s duration every 300 s close to the LCFS. (C) 2017 Elsevier B.V. All rights reserved.

引用

页码：303 / 308

页数：6