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Title: The targeted heating and current drive applications for the ITER electron cyclotron system

A 24 MW Electron Cyclotron (EC) system operating at 170 GHz and 3600 s pulse length is to be installed on ITER. The EC plant shall deliver 20 MW of this power to the plasma for Heating and Current Drive (H and CD) applications. The EC system is designed for plasma initiation, central heating, current drive, current profile tailoring, and Magneto-hydrodynamic control (in particular, sawteeth and Neo-classical Tearing Mode) in the flat-top phase of the plasma. A preliminary design review was performed in 2012, which identified a need for extended application of the EC system to the plasma ramp-up, flattop, and ramp down phases of ITER plasma pulse. The various functionalities are prioritized based on those applications, which can be uniquely addressed with the EC system in contrast to other H and CD systems. An initial attempt has been developed at prioritizing the allocated H and CD applications for the three scenarios envisioned: ELMy H-mode (15 MA), Hybrid (∼12 MA), and Advanced (∼9 MA) scenarios. This leads to the finalization of the design requirements for the EC sub-systems.
Authors:
; ; ; ; ; ;  [1] ; ;  [2] ; ;  [3] ;  [4] ;  [5] ;  [6]
  1. ITER Organization, Route de Vinon-sur-Verdon, CS 90 046, 13067 St. Paul Lez Durance Cedex (France)
  2. Fusion for Energy, Josep Pla 2, Barcelona 08019 (Spain)
  3. Istituto di Fisica del Plasma CNR, 20125 Milano (Italy)
  4. US ITER Project Office, ORNL, 1055 Commerce Park, PO Box 2008, Oak Ridge, Tennessee 37831 (United States)
  5. Max-Planck-Institut für Plasmaphysik, D-85748 Garching (Germany)
  6. Japan Atomic Energy Agency (JAEA), Naka, Ibaraki 311-0193 (Japan)
Publication Date:
OSTI Identifier:
22408053
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physics of Plasmas; Journal Volume: 22; Journal Issue: 2; Other Information: (c) 2015 EURATOM; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; CONTROL; ECR CURRENT DRIVE; EDGE LOCALIZED MODES; ELECTRON CYCLOTRON-RESONANCE; GHZ RANGE; H-MODE PLASMA CONFINEMENT; ITER TOKAMAK; MAGNETOHYDRODYNAMICS; PLASMA; PULSES; SAWTOOTH OSCILLATIONS; TEARING INSTABILITY