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Meetings

  • 31st Energetic Particle Physics TG Meeting
    16 Apr - 18 Apr, 2024
    Daejon, Korea
  • 32nd Transport & Confinement TG Meeting
    16 Apr - 19 Apr, 2024
    Cadarache, France
  • 43rd MHD, Disruptions and Control TG Meeting
    22 Apr - 26 Apr, 2024
    Toki, Japan
  • 43rd Pedestal & Edge Physics TG Meeting
    23 Apr - 26 Apr, 2024
    Princeton, NJ, USA
  • 45th Diagnostics TG Meeting
    29 Apr - 02 May, 2024
    Oak Ridge, TN, USA
  • 32nd Integrated Operation Scenarios TG Meeting
    07 May - 10 May, 2024
    Seoul, Korea
Scope

The general scope of the ITPA Topical Group on MHD, Disruptions and Control is to provide the experimental and theoretical basis and recommendations for both conventional and advanced tokamak scenarios on next step burning fusion devices in the areas of: β limiting MHD instabilities and their active control; disruptions (physics, prediction, avoidance and mitigation), and the connected halo currents, forces and heat loads; and plasma magnetic control (current, position, shape, error fields). In these areas the group shall co-ordinate collaborative research activities among international fusion research establishments, including experiments to be conducted, analysis of results, modelling and comparison with theory. The group shall also direct the application of the present understanding to modelling and assessment of ITER plasmas. Predictions for burning plasma experiments require the construction, extension and analysis of a disruption database, and contributions to other databases. In addition, research priorities for Physics R&D in support of burning plasma experiments have to be identified and formulated and to be endorsed by the ITPA Coordinating Committee. Based on these activities, the TG shall recommend physics guidelines and methodologies for physics and technical design of burning plasma experiments. Publications and presentations on the activities of the TG to fusion journals and international conferences will be promoted.

Tasks

The tasks of the MHD, Disruptions and Control Topical Group, on the basis of operimental and theoretical studies, shall address three main topics:

  • MHD instabilities and their control:
    • Limits imposed on plasma parameters, especially β, by MHD instabilities in both conventional and advanced tokamak operation, e.g. neoclassical tearing modes (NTMs), external kinks, and resistive wall modes (RWMs)
    • Active control of MHD instabilities via pressure and current profile control
    • Active control of MHD instabilities via conducting structures and additional coils
    • Interaction of MHD modes with plasma rotation, error fields and TF ripple
    • Diagnostic issues related to measurement and control of MHD instabilities
  • Disruptions and their mitigation:
    • Disruption characterisation (e.g. thermal and current quench times, halo currents, production and quenching of runaway electrons) and its projection to future machines
    • Validation of theoretical models used in disruption studies, namely disruption prediction, avoidance and mitigation
    • Extension of the existing disruption database, especially towards q ≈ 3 discharges, quench time scales and halo current asymmetries
    • Tools and recommendations for disruption prediction, avoidance, and mitigation — both for heat loads and forces to achieve reliable machine protection
    • Assessment of disruption mitigation by techniques including pellets and strong gas puffs
    • Avoidance and mitigation of runaway electron production during current decay
    • Scenarios of emergency plasma termination (fast shut-down)
    • Diagnostic issues related to prediction, avoidance, and mitigation of disruptions
  • Plasma magnetic control:
    • Recommendations on the reactor relevant conventional and advanced tokamak scenarios
    • Plasma scenario and machine sequencing requirements to obtain the plasma target parameters and to avoid disruption
    • Feedback and feedforward control of plasma current, position and shape by axi-symmetric poloidal fields
    • Control and reduction of error fields
    • Experimental validation of theoretical models used for magnetic control simulations
    • Diagnostic issues related to magnetic control
    • Development, tests and recommendations on magnetic control used in Plasma Control Simulators. (Taking into account the high cost of ITER equipment and the cost of running a tokamak discharge, all experiments should be at first simulated and properly optimised with user friendly numerical codes referred to as Plasma Control Simulators. Activity on the PCS includes development of codes, their validation in experiments, improvements in the codes and simulation of ITER discharges with feedforward and feedback plasma control.)
  • Runaway electrons:
    • Study of the generation of runaway electrons by disruptions in present devices and comparison with theory
    • Development of  mitigation/control tools for ITER

China

Ding Yonghua
Liu Yi
Sun Youwen
Wang Xiaogang
Zhu Ping

EU

Cavinato Mario
Ham Christopher
Hoelzl Matthias
Markovic Tomas
Piron Lidia
Ratta Giuseppe (Contact)
Reux Cédric
Sheikh Umar (Contact)

India

Bandyopadhyay Indranil (Chair)
Chandra Debasis
Sen Abhijit

Japan

Furukawa Masaru
Inoue Shizuo
Isayama Akihiko
Masamune Sadao
Matsuyama Akinobu
Sakakibara Satoru
Suzuki Yasuhiro (Stell. Rep)
Watanabe Kiyomasa

Korea

Bak Jun-Gyo
Jeon Young-Mu
Kim Jay Hyun
Kwon Oh-Jin
Lee Sang-Gon
Park Gunyoung

Russia

Ivanov Nikolay
Lukash Victor
Medvedev Sergei
Mirnov Sergey
Pustovitov Vladimir

USA

Chapman Brett
Eidietis Nick
Granetz Bob (Contact)
Jardin Steve
Logan Nikolas
Park Jong-Kyu (Dep. Chair)
Sabbagh Steven

ITER

Lehnen Michael (ITER Dep. Chair)
  • Bandaru Vinodh Kumar (EU)
  • Beidler Matthew (US)
  • Benkadda Sadruddin (EU)
  • Bolzonella Tommaso (EU)
  • Daniel Raju (IN)
  • Fasoli Ambrogio (EU)
  • Gribov Yuri (IO)
  • Hu Liqun (CN)
  • Hu Di (IO)
  • Igochine Valentin (EU)
  • Imrisek Martin (EU)
  • Joffrin Emmanuel (EU)
  • Lee Sang-Jun (KO)
  • Martin Piero (EU)
  • Pan Yuan (CN)
  • Pavel Aleynikov (EU)
  • Portone Alfredo (EU)
  • Saint-Laurent François (EU)
  • Schwarz Nina (EU)
  • Yanovskiy Vadim (EU)
  • You Kwang-Il (KO)
  • Zhu Ping (US)
  • Artaud Jean-François (EU)
  • Artola Javier (IO)
  • Bardoczi Laszlo (US)
  • Baylor Larry (US)
  • Chapman Ian (EU)
  • Gao Qindi (CN)
  • Harris Jeffrey (US)
  • Hoppe Mathias (EU)
  • Hu Xi Wei (CN)
  • Jaulmes Fabien (EU)
  • Kim Woong Chae (KO)
  • Matsunaga Go (JA)
  • Paccagnella Roberto (EU)
  • Pan Yudong (CN)
  • Paz-Soldan Carlos (US)
  • Peterka Matej (EU)
  • Pigatto Leonardo (EU)
  • Rea Cristina (US)
  • Ryu Chang-Mo (KO)
  • Wang Zhengxiong (CN)
  • Xu Liqing (CN)
  • Zhong Fangchuan (CN)
  • Baruzzo Matteo (EU)
  • Berkery Jack (US)
  • Chen Zhongyong (CN)
  • Dumont Remi (EU)
  • Ganesh Rajaraman (IN)
  • Garofalo Andrea (US)
  • Guenter Sibylle (EU)
  • Guo Bihao (CN)
  • Izzo Valerie (US)
  • Kerboua-benlarbi Samy (EU)
  • Konovalov Sergey (RF)
  • Levesque Jeffrey (US)
  • Liu Chang (US)
  • Maget Patrick (EU)
  • Menard Jonathon (US)
  • Nardon Eric (EU)
  • Pautasso Gabriella (EU)
  • Sauter Olivier (EU)
  • Strauss Hank (US)
  • Wang Hui-Hui (CN)
  • Zhang Yang (CN)
  • Zohm Hartmut (EU)
  • Cui Zhengyin (CN)
  • Gao Zhe (CN)
  • Gerasimov Sergei (EU)
  • Hender Tim (EU)
  • Hollmann Eric (US)
  • Jachmich Stefan (EU)
  • Kim Gnan (KO)
  • Kolemen Egemen (US)
  • Liu Yueqiang (EU)
  • Maraschek Marc (EU)
  • Mcintosh Simon (IO)
  • Munaretto Stefano (US)
  • Okabayashi Michio (US)
  • Pau Alessandro (EU)
  • Peysson Yves (EU)
  • Polevoi Alexei (IO)
  • Roccella Riccardo (IO)
  • Schoonheere Nathan (EU)
  • Shiraishi Junya (JA)
  • Sozzi Carlo (EU)
  • Villone Fabio (EU)
  • Yun Gunsu (KO)