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Title: Modelling of edge localised modes and edge localised mode control

Abstract

Edge Localised Modes (ELMs) in ITER Q = 10 H-mode plasmas are likely to lead to large transient heat loads to the divertor. To avoid an ELM induced reduction of the divertor lifetime, the large ELM energy losses need to be controlled. In ITER, ELM control is foreseen using magnetic field perturbations created by in-vessel coils and the injection of small D2 pellets. ITER plasmas are characterised by low collisionality at a high density (high fraction of the Greenwald density limit). These parameters cannot simultaneously be achieved in current experiments. Therefore, the extrapolation of the ELM properties and the requirements for ELM control in ITER relies on the development of validated physics models and numerical simulations. In this paper, we describe the modelling of ELMs and ELM control methods in ITER. The aim of this paper is not a complete review on the subject of ELM and ELM control modelling but rather to describe the current status and discuss open issues.

Authors:
;  [1];  [2];  [3];  [4];  [5];  [6];  [7]
  1. ITER Organization, Route de Vinon sur Verdon, 13067 Saint Paul Lez Durance (France)
  2. Princeton Plasma Physics Laboratory, Princeton University, Princeton, New Jersey 08543 (United States)
  3. General Atomics, P.O. Box 85608, San Diego, California 92186-5608 (United States)
  4. Laboratory for Nuclear Science, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139-4307 (United States)
  5. Institute for Fusion Studies, University of Texas at Austin, Austin, Texas 78712 (United States)
  6. Lawrence Livermore National Laboratory, Livermore, California 94551 (United States)
  7. Ecole Centrale de Lyon, 69130 Écully, Lyon (France)
Publication Date:
OSTI Identifier:
22408050
Resource Type:
Journal Article
Journal Name:
Physics of Plasmas
Additional Journal Information:
Journal Volume: 22; Journal Issue: 2; Other Information: (c) 2015 U.S. Government; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1070-664X
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; COMPUTERIZED SIMULATION; CONTROL; DEUTERIUM; DISTURBANCES; DIVERTORS; EDGE LOCALIZED MODES; ENERGY LOSSES; EXTRAPOLATION; FUEL PELLETS; HEATING LOAD; H-MODE PLASMA CONFINEMENT; ITER TOKAMAK; MAGNETIC FIELDS; PLASMA; SERVICE LIFE

Citation Formats

Huijsmans, G. T. A., Loarte, A., Chang, C. S., Ferraro, N., Sugiyama, L., Waelbroeck, F., Xu, X. Q., and Futatani, S. Modelling of edge localised modes and edge localised mode control. United States: N. p., 2015. Web. doi:10.1063/1.4905231.
Huijsmans, G. T. A., Loarte, A., Chang, C. S., Ferraro, N., Sugiyama, L., Waelbroeck, F., Xu, X. Q., & Futatani, S. Modelling of edge localised modes and edge localised mode control. United States. https://doi.org/10.1063/1.4905231
Huijsmans, G. T. A., Loarte, A., Chang, C. S., Ferraro, N., Sugiyama, L., Waelbroeck, F., Xu, X. Q., and Futatani, S. 2015. "Modelling of edge localised modes and edge localised mode control". United States. https://doi.org/10.1063/1.4905231.
@article{osti_22408050,
title = {Modelling of edge localised modes and edge localised mode control},
author = {Huijsmans, G. T. A. and Loarte, A. and Chang, C. S. and Ferraro, N. and Sugiyama, L. and Waelbroeck, F. and Xu, X. Q. and Futatani, S.},
abstractNote = {Edge Localised Modes (ELMs) in ITER Q = 10 H-mode plasmas are likely to lead to large transient heat loads to the divertor. To avoid an ELM induced reduction of the divertor lifetime, the large ELM energy losses need to be controlled. In ITER, ELM control is foreseen using magnetic field perturbations created by in-vessel coils and the injection of small D2 pellets. ITER plasmas are characterised by low collisionality at a high density (high fraction of the Greenwald density limit). These parameters cannot simultaneously be achieved in current experiments. Therefore, the extrapolation of the ELM properties and the requirements for ELM control in ITER relies on the development of validated physics models and numerical simulations. In this paper, we describe the modelling of ELMs and ELM control methods in ITER. The aim of this paper is not a complete review on the subject of ELM and ELM control modelling but rather to describe the current status and discuss open issues.},
doi = {10.1063/1.4905231},
url = {https://www.osti.gov/biblio/22408050}, journal = {Physics of Plasmas},
issn = {1070-664X},
number = 2,
volume = 22,
place = {United States},
year = {Sun Feb 15 00:00:00 EST 2015},
month = {Sun Feb 15 00:00:00 EST 2015}
}

Works referencing / citing this record:

Insights into type-I edge localized modes and edge localized mode control from JOREK non-linear magneto-hydrodynamic simulations
journal, April 2018


Comparative investigation of ELM control based on toroidal modelling of plasma response to RMP fields
journal, May 2017


Non-linear MHD simulations of ELMs in JET and quantitative comparisons to experiments
journal, November 2015


Modelling of plasma response to 3D external magnetic field perturbations in EAST
journal, October 2016


ICRF coupling in ASDEX upgrade magnetically perturbed 3D plasmas
journal, November 2019


Long-lived coupled peeling ballooning modes preceding ELMs on JET
journal, March 2019


Hollow pellet injection for magnetic fusion
journal, June 2019


High Confinement Mode and Edge Localized Mode Characteristics in a Near-Unity Aspect Ratio Tokamak
journal, April 2016