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

Journal Article · · Physics of Plasmas
DOI:https://doi.org/10.1063/1.4908598· OSTI ID:1424487
 [1];  [2];  [1];  [3];  [3];  [2];  [1];  [1];  [4];  [1];  [1];  [5];  [1];  [6]
  1. ITER Organization, Route de Vinon-sur-Verdon (France)
  2. Fusion for Energy, Barcelona (Spain)
  3. Istituto di Fisica del Plasma CNR, Milano (Italy)
  4. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). US ITER Project Office
  5. Max Planck Institute of Plasma Physics, Garching (Germany)
  6. Japan Atomic Energy Agency (JAEA), Naka (Japan)
We present 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&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&CD systems. An initial attempt has been developed at prioritizing the allocated H&CD applications for the three scenarios envisioned: ELMy H-mode (15 MA), Hybrid (~12 MA), and Advanced (~9 MA) scenarios. In conclusion, this leads to the finalization of the design requirements for the EC sub-systems.
Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE Office of Science (SC)
Grant/Contract Number:
AC05-00OR22725
OSTI ID:
1424487
Alternate ID(s):
OSTI ID: 22408053
Journal Information:
Physics of Plasmas, Journal Name: Physics of Plasmas Journal Issue: 2 Vol. 22; ISSN 1070-664X
Publisher:
American Institute of Physics (AIP)Copyright Statement
Country of Publication:
United States
Language:
English

References (25)

Reliability Test of the 170GHz Gyrotron for ITER journal September 2010
Poloidally asymmetric plasma response with ECH deposition near q=1 in TCV journal January 2001
Overview of the ITER EC H&CD system and its capabilities journal October 2011
Progress of the ECRH Upper Launcher design for ITER journal October 2014
Safety-factor profile tailoring by improved electron cyclotron system for sawtooth control and reverse shear scenarios in ITER conference January 2008
High power millimeter wave experiment of ITER relevant electron cyclotron heating and current drive system journal June 2011
Guidelines for internal optics optimization of the ITER EC H&CD upper launcher
  • Moro, A.; Bruschi, A.; Figini, L.
  • RADIOFREQUENCY POWER IN PLASMAS: Proceedings of the 20th Topical Conference, AIP Conference Proceedings https://doi.org/10.1063/1.4864610
conference January 2014
Optimization of the ITER electron cyclotron equatorial launcher for improved heating and current drive functional capabilities journal June 2014
Chapter 6: Plasma auxiliary heating and current drive journal December 1999
Cross–machine benchmarking for ITER of neoclassical tearing mode stabilization by electron cyclotron current drive journal February 2006
Physics analysis of the ITER ECW system for optimized performance journal April 2008
Overview of the ITER EC upper launcher journal April 2008
Improved design of an ITER equatorial EC launcher journal April 2008
Critical interface issues associated with the ITER EC system journal April 2008
Potential of the ITER electron cyclotron equatorial launcher for heating and current drive at nominal and reduced fields journal February 2012
Sawtooth control using electron cyclotron current drive in ITER demonstration plasmas in DIII-D journal April 2012
Integrated real-time control of MHD instabilities using multi-beam ECRH/ECCD systems on TCV journal July 2012
On recent results in the modelling of neoclassical-tearing-mode stabilization via electron cyclotron current drive and their impact on the design of the upper EC launcher for ITER journal January 2015
Impurity behaviour in the ASDEX Upgrade divertor tokamak with large area tungsten walls journal May 2002
Control of NTMs by ECCD on ASDEX Upgrade in view of ITER application journal November 2007
On the heating mix of ITER journal November 2010
On the requirements to control neoclassical tearing modes in burning plasmas journal January 2010
The EC H&CD Transmission Line for ITER journal May 2011
ITER ECRH-ECCD System Capabilities for Extended Physics Applications journal August 2007
Loss Estimate for ITER ECH Transmission Line Including Multimode Propagation journal April 2010

Cited By (11)

Non-linear simulations of neoclassical tearing mode control by externally driven RF current and heating, with application to ITER journal August 2019
Multi-Frequency, MW-Power Triode Gyrotron Having a Uniform Directional Beam journal December 2016
Integrated Tokamak modeling: When physics informs engineering and research planning journal May 2018
Modeling the electron cyclotron emission below the fundamental resonance in ITER journal July 2019
Heating neutral beams for ITER: negative ion sources to tune fusion plasmas journal May 2017
Survey of heating and current drive for K-DEMO journal January 2018
The time-dependent simulation of CFETR baseline steady-state scenarios journal July 2018
Real-time plasma state monitoring and supervisory control on TCV journal January 2019
Control of neoclassical tearing modes and integrated multi-actuator plasma control on TCV journal June 2019
Inference of α -particle density profiles from ITER collective Thomson scattering journal August 2019
Real-time plasma state monitoring and supervisory control on TCV text January 2019

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