Basic design considerations for a frequency step-tunable electron cyclotron wave system to suppress NTMs in DEMO
| Autor: | G. Tardini, Tobias Ruess, D. Strauß, Manfred Thumm, Guillermo Suarez Lopez, Gaetano Aiello, Antti Snicker, Theo Scherer, Minh Quang Tran, Alessandro Moro, Emanuele Poli, R. Schramm, E. Fable, F. Janky, H. Zohm, Thomas Franke, Alessandro Bruschi, Gustavo Granucci, Gerd Gantenbein, Stefan Illy, Chuanren Wu, Mattia Siccinio, O. Kudlacek, Saul Garavaglia, Konstantinos A. Avramidis, John Jelonnek |
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| Přispěvatelé: | Karlsruhe Institute of Technology, CNR-ENEA-EURATOM Association, Max-Planck-Institut für Plasmaphysik, Department of Applied Physics, Swiss Federal Institute of Technology Lausanne, Aalto-yliopisto, Aalto University |
| Rok vydání: | 2021 |
| Předmět: |
Technology
electron cyclotron wave Computer science growth Frequency steering Cyclotron neoclassical tearing modes heating Electron neoclassical tearing mode 01 natural sciences 7. Clean energy 010305 fluids & plasmas law.invention Heating law 0103 physical sciences Electronic engineering General Materials Science window 010306 general physics DEMO Frequency step-tunable gyrotron Civil and Structural Engineering gyrotron frequency step-tunable gyrotron Mechanical Engineering frequency steering Plasma magnet stabilization Electron cyclotron wave Current drive Nuclear Energy and Engineering ghz current drive Heating Current drive Neoclassical tearing mode ddc:600 |
| Zdroj: | Fusion Engineering and Design Fusion engineering and design, 173, Art.-Nr.: 112931 Fusion engineering and design 173 (2021): 112931-1–112931-9. doi:10.1016/j.fusengdes.2021.112931 info:cnr-pdr/source/autori:Wu C.; Aiello G.; Avramidis K.A.; Bruschi A.; Fable E.; Franke T.; Gantenbein G.; Garavaglia S.; Granucci G.; Illy S.; Janky F.; Jelonnek J.; Kudlacek O.; Moro A.; Poli E.; Ruess T.; Scherer T.; Schramm R.; Siccinio M.; Snicker A.; Strauss D.; Suarez Lopez G.; Tardini G.; Thumm M.; Tran M.Q.; Zohm H./titolo:Basic design considerations for a frequency step-tunable electron cyclotron wave system to suppress NTMs in DEMO/doi:10.1016%2Fj.fusengdes.2021.112931/rivista:Fusion engineering and design/anno:2021/pagina_da:112931-1/pagina_a:112931-9/intervallo_pagine:112931-1–112931-9/volume:173 |
| ISSN: | 0920-3796 |
| DOI: | 10.1016/j.fusengdes.2021.112931 |
| Popis: | openaire: EC/H2020/633053/EU//EUROfusion An Electron Cyclotron Wave (ECW) system will be used in the European DEMO for the stabilization of Neoclassical Tearing Modes (NTMs). In order to avoid movable mirrors in the harsh environment close to the plasma and to simplify the NTM launcher integration, the tuning of the ECW deposition location can be achieved by launching frequency-tunable ECWs from fixed mirrors while the frequency is tuned in discrete steps of 2–3GHz. An overview of the frequency step-tunable ECW system for NTM stabilization is presented. The design considerations are discussed based on the current DEMO baseline parameters and the status of technologies. A simulation of NTM stabilization with an idealized frequency tunable ECW system on an analytical NTM model is shown. The simulation takes into account a realistic tuning speed based on the present technology and considers the current NTM launcher configurations in DEMO. A simple sweeping strategy is adapted for the control of frequency. Various uncertainties, which will affect the feasibility, need to be further investigated. |
| Databáze: | OpenAIRE |
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