EC power management in ITER for NTM control: the path from the commissioning phase to demonstration discharges

Poli, Francesca M.; Fredrickson, Eric; Henderson, Mark A.; Bertelli, Nicola; Farina, Daniela; Figini, Lorenzo; Poli, Emanuele

doi:10.1051/epjconf/201715703041

Title: EC power management in ITER for NTM control: the path from the commissioning phase to demonstration discharges

Journal Article · Mon Oct 23 00:00:00 EDT 2017 · EPJ Web of Conferences

DOI:https://doi.org/10.1051/epjconf/201715703041· OSTI ID:1411213

Poli, Francesca M. ^[1]; Fredrickson, Eric ^[1]; Henderson, Mark A. ^[2]; Bertelli, Nicola ^[1]; Farina, Daniela ^[3]; Figini, Lorenzo ^[3]; Poli, Emanuele ^[4]

Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States)
ITER Organization, St. Paul Les Durance (France)
Istituto di Fisica del Plasma, Milano (Italy)
Max-Planck-Institute fur Plasmaphysiks, Garching (Germany)

Time dependent simulations that evolve consistently the magnetic equilibrium and plasma pressure profiles and the width and frequency rotation of magnetic islands under the effect of the Electron Cyclotron feedback system are used to assess whether the control of NTMs on ITER is compatible with other simulataneous functionalities of the EC system, like core heating and current profile tailoring, or sawtooth control. Furthermore, results indicate that the power needs for control can be reduced if the EC power is reserved and if pre-emptive control is used as opposed to an active search for an already developed island.

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Research Organization:: Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States)

Sponsoring Organization:: USDOE

Grant/Contract Number:: AC02-09CH11466

OSTI ID:: 1411213

Journal Information:: EPJ Web of Conferences, Vol. 157; Conference: Radio Frequency Power in Plasmas, Aix-en Provence (France), 30 May - 2 Jun 2017; ISSN 2100-014X

Publisher:: EDP SciencesCopyright Statement

Country of Publication:: United States

Language:: English

References (12)

Nonlinear evolution of double tearing modes in tokamaks Fredrickson, E.; Bell, M.; Budny, R. V. Physics of Plasmas, Vol. 7, Issue 10 https://doi.org/10.1063/1.1289893	journal	January 2000
Optimization of the ITER electron cyclotron equatorial launcher for improved heating and current drive functional capabilities Farina, D.; Henderson, M.; Figini, L. Physics of Plasmas, Vol. 21, Issue 6 https://doi.org/10.1063/1.4884352	journal	June 2014
Requirements on localized current drive for the suppression of neoclassical tearing modes Bertelli, N.; De Lazzari, D.; Westerhof, E. Nuclear Fusion, Vol. 51, Issue 10 https://doi.org/10.1088/0029-5515/51/10/103007	journal	August 2011
Integrated modelling of island growth, stabilization and mode locking: consequences for NTM control on ITER van den Brand, H.; de Baar, M. R.; Cardozo, N. J. Lopes Plasma Physics and Controlled Fusion, Vol. 54, Issue 9 https://doi.org/10.1088/0741-3335/54/9/094003	journal	August 2012
Potential of the ITER electron cyclotron equatorial launcher for heating and current drive at nominal and reduced fields Farina, D.; Henderson, M.; Figini, L. Nuclear Fusion, Vol. 52, Issue 3 https://doi.org/10.1088/0029-5515/52/3/033005	journal	February 2012
TORBEAM, a beam tracing code for electron-cyclotron waves in tokamak plasmas Poli, E.; Peeters, A. G.; Pereverzev, G. V. Computer Physics Communications, Vol. 136, Issue 1-2 https://doi.org/10.1016/S0010-4655(01)00146-1	journal	May 2001
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 Poli, E.; Angioni, C.; Casson, F. J. Nuclear Fusion, Vol. 55, Issue 1 https://doi.org/10.1088/0029-5515/55/1/013023	journal	January 2015
Neoclassical tearing modes in Tokamak Fusion Test Reactor experiments. I. Measurements of magnetic islands and Δ ^′ Chang, Z.; Fredrickson, E. D.; Batha, S. H. Physics of Plasmas, Vol. 5, Issue 4 https://doi.org/10.1063/1.872627	journal	April 1998
Requirements for alignment of electron cyclotron current drive for neoclassical tearing mode stabilization in ITER La Haye, R. J.; Ferron, J. R.; Humphreys, D. A. Nuclear Fusion, Vol. 48, Issue 5 https://doi.org/10.1088/0029-5515/48/5/054004	journal	April 2008
Evaluating neoclassical tearing mode detection with ECE for control on ITER van den Brand, H.; de Baar, M. R.; Lopes Cardozo, N. J. Nuclear Fusion, Vol. 53, Issue 1 https://doi.org/10.1088/0029-5515/53/1/013005	journal	December 2012
The targeted heating and current drive applications for the ITER electron cyclotron system Henderson, M.; Saibene, G.; Darbos, C. Physics of Plasmas, Vol. 22, Issue 2 https://doi.org/10.1063/1.4908598	journal	February 2015
Actuator and diagnostic requirements of the ITER Plasma Control System Snipes, J. A.; Beltran, D.; Casper, T. Fusion Engineering and Design, Vol. 87, Issue 12 https://doi.org/10.1016/j.fusengdes.2012.04.002	journal	December 2012

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