Effect of resonant magnetic perturbations on low collisionality discharges in MAST and a comparison with ASDEX Upgrade

0454110 - ÚFP 2016 RIV AT eng J - Článek v odborném periodiku
Kirk, A. - Suttrop, W. - Chapman, I.T. - Liu, Y. - Scannell, R. - Thornton, A.J. - Barrera Orte, L. - Cahyna, Pavel - Eich, T. - Fischer, R. - Fuchs, C. - Ham, C. - Harrison, J.R. - Jakubowski, M.W. - Kurzan, B. - Pamela, S. - Peterka, Matěj - Ryan, D. - Saarelma, S. - Sieglin, B. - Valovic, M. - Willensdorfer, M.
Effect of resonant magnetic perturbations on low collisionality discharges in MAST and a comparison with ASDEX Upgrade.
Nuclear Fusion. Roč. 55, č. 4 (2015), č. článku 043011. ISSN 0029-5515. E-ISSN 1741-4326
Institucionální podpora: RVO:61389021
Klíčová slova: ELM mitigation * ELM energy loss * MAST * AUG
Kód oboru RIV: BL - Fyzika plazmatu a výboje v plynech
Impakt faktor: 4.040, rok: 2015
http://iopscience.iop.org/0029-5515/55/4/043011

Sustained edge localized mode (ELM) mitigation has been achieved on MAST and AUG using resonant magnetic perturbations (RMPs) with various toroidal mode numbers over a wide range of low to medium collisionality discharges. The ELM energy loss and peak heat loads at the divertor targets have been reduced. The ELM mitigation phase is typically associated with a drop in plasma density and overall stored energy. In one particular scenario on MAST, by carefully adjusting the fuelling it has been possible to counteract the drop in density and to produce plasmas with mitigated ELMs, reduced peak divertor heat flux and with minimal degradation in pedestal height and confined energy. The plasma response calculations show that the increase in ELM frequency is correlated with the size of the edge peeling-tearing like response of the plasma and the distortions of the plasma boundary in the X-point region
Trvalý link: http://hdl.handle.net/11104/0254806