Plasma and Fusion Research
Online ISSN : 1880-6821
Regular Articles
Recent Results from the Development of the Electron Cyclotron Heating System for JT-60SA toward High-Power Long-Pulse Operations
Akihiko ISAYAMATakayuki KOBAYASHIKenji YOKOKURAMitsuru SHIMONOMasauki SAWAHATASadaaki SUZUKIMasayuki TERAKADOShinichi HIRANAIKenji WADAJun HINATAYoshikatsu SATOKatsumichi HOSHINOShinichi MORIYAMAKeishi SAKAMOTOKiyotaka HAMAMATSU
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2012 Volume 7 Pages 2405029

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Abstract

Development of an electron cyclotron (EC) wave system was conducted in an effort to achieve the capability required in JT-60SA. Pulse duration at 1 MW output was extended to 31 s. Transmission line components with a diameter of 60.3 mm were installed in 2011 to reduce temperaturerise during a gyrotron oscillation. Development of a dual-frequency gyrotron was started to enable heating and current drive in the core region of the JT-60SA plasma for the toroidal field of 2.3 T. The EC wave frequency was chosen to be 138 GHz to meet the requirements of physics experiments and gyrotron design. Fabrication of the gyrotron began in 2011.

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© 2012 by The Japan Society of Plasma Science and Nuclear Fusion Research
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