KIT coaxial gyrotron development: from ITER toward DEMO

Karlsruhe Institute of Technology (KIT) is doing research and development in the field of megawatt-class radio frequency (RF) sources (gyrotrons) for the Electron Cyclotron Resonance Heating (ECRH) systems of the International Thermonuclear Experimental Reactor (ITER) and the DEMOnstration Fusion Po...

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Published inInternational journal of microwave and wireless technologies Vol. 10; no. 5-6; pp. 547 - 555
Main Authors Ruess, S., Avramidis, K. A., Fuchs, M., Gantenbein, G., Ioannidis, Z., Illy, S., Jin, J., Kalaria, P. C., Kobarg, T., Pagonakis, I. Gr, Ruess, T., Rzesnicki, T., Schmid, M., Thumm, M., Weggen, J., Zein, A., Jelonnek, J.
Format Journal Article
LanguageEnglish
Published Cambridge, UK Cambridge University Press 01.06.2018
Subjects
Cyclotron resonance
Cyclotron resonance devices
Efficiency
Electric power generation
Electron cyclotron resonance
International conferences
Magnetic fields
Manufacturing
Nuclear power plants
Nuclear research
Oscillators
Power plants
R&D
Radio frequency
Research & development
Research Papers
Germany
manufacturing and assembly technologies
vacuum electronics
high-power microwave sources
nuclear fusion
vacuum technologies
gyrotron
Electron cyclotron resonance heating
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Summary:Karlsruhe Institute of Technology (KIT) is doing research and development in the field of megawatt-class radio frequency (RF) sources (gyrotrons) for the Electron Cyclotron Resonance Heating (ECRH) systems of the International Thermonuclear Experimental Reactor (ITER) and the DEMOnstration Fusion Power Plant that will follow ITER. In the focus is the development and verification of the European coaxial-cavity gyrotron technology which shall lead to gyrotrons operating at an RF output power significantly larger than 1 MW CW and at an operating frequency above 200 GHz. A major step into that direction is the final verification of the European 170 GHz 2 MW coaxial-cavity pre-prototype at longer pulses up to 1 s. It bases on the upgrade of an already existing highly modular short-pulse (ms-range) pre-prototype. That pre-prototype has shown a world record output power of 2.2 MW already. This paper summarizes briefly the already achieved experimental results using the short-pulse pre-prototype and discusses in detail the design and manufacturing process of the upgrade of the pre-prototype toward longer pulses up to 1 s.
ISSN:1759-0787
1759-0795
DOI:10.1017/S1759078718000144