NDLI: Present Status of the New Multifrequency ECRH System for ASDEX Upgrade

Content Provider	IEEE Xplore Digital Library
Author	Wagner, D.H. Grunwald, G. Leuterer, F. Manini, A. Monaco, F. Munich, M.J. Schutz, H. Stober, J. Zohm, H. Franke, T. Thumm, M. Heidinger, R. Gantenbein, G. Meier, A. Kasparek, W. Lechte, C. Litvak, A.G. Denisov, G.G. Chirkov, A.V. Tai, E.M. Popov, L.G. Nichiporenko, V.O. Myasnikov, V.E. Solyanova, E.A. Malygin, S.A. Meo, F. Woskov, P.P.
Copyright Year	1973
Abstract	A new multifrequency electron cyclotron resonance heating system is under construction for the Axially Symmetric Divertor Experiment (ASDEX) Upgrade tokamak experiment. For the first time in a fusion device, this system employs multifrequency gyrotrons that are step-tunable in the range 105-140 GHz. In its final stage the system will consist of four gyrotrons with a total power of 4 MW and a pulselength of 10 s. The first two gyrotrons, working at 105 and 140 GHz, were installed and tested. Transmission line elements such as corrugated waveguides, polarizer mirrors and vacuum windows are designed to cope with this frequency band. The system includes fast steerable launchers at the front end that will allow for localized feedback-controlled power deposition in the plasma.
Sponsorship	IEEE Nuclear and Plasma Sciences Society
Starting Page	324
Ending Page	331
Page Count	8
File Size	838416
File Format	PDF
ISSN	00933813
Volume Number	36
Issue Number	2
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-01-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Variable speed drives Gyrotrons Electrons Cyclotrons Resonance Heating Tokamaks Testing Power transmission lines Polarization step-tunable gyrotron Electron cyclotron resonance heating (ECRH) fast steerable launcher
Content Type	Text
Resource Type	Article
Subject	Nuclear and High Energy Physics Condensed Matter Physics

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Progress and First Results With the New Multifrequency ECRH System for ASDEX Upgrade

Recent Upgrades and Extensions of the ASDEX Upgrade ECRH System

42-GHz 0.5-MW ECRH System for Tokamaks SST-1 and Aditya

42-GHz/500-kW Electron Cyclotron Resonance Heating System on Tokamak SST-1

Theory of a frequency-step-tunable gyrotron for optimum plasma ECRH

RF Behavior of a 200-kW CW Gyrotron

Electron Cyclotron Resonance Heating (ECRH) of a Spheromak Plasma

ECRH and ECCD with high power gyrotrons at the stellarators W7-AS and W7-X

Electron Cyclotron Heating Experiments in Tokamaks and Stellarators

Present Status of the New Multifrequency ECRH System for ASDEX Upgrade

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