Bulletin of the American Physical Society
64th Annual Meeting of the APS Division of Plasma Physics
Volume 67, Number 15
Monday–Friday, October 17–21, 2022; Spokane, Washington
Session NO05: Particle and Power Handling, Divertor Physics, and Plasma-Material Interactions
9:30 AM–12:30 PM,
Wednesday, October 19, 2022
Room: Ballroom 111 B
Chair: Michele Romanelli, Tokamak Energy Ltd
Abstract: NO05.00012 : Occurrence and control of X‐point radiators and marfes in ASDEX Upgrade: experimental validation of an analytic model*
11:42 AM–11:54 AM
Presenter:
Ulrich Stroth
(Max Planck Institute for Plasma Physics)
Authors:
Ulrich Stroth
(Max Planck Institute for Plasma Physics)
Matthias Bernert
(Max Planck Institute for Plasma Physics)
Dominik Brida
(Max Planck Institute for Plasma Physics)
Marco Cavedon
(Universitá di Milano-Bico)
Ralph Dux
(Max Planck Institute for Plasma Physics)
Tilmann Lunt
(Max Planck Institute for Plasma Physics)
Ou Pan
(Max Planck Institute for Plasma Physics)
Marco Wischmeier
(Max Planck Institute for Plasma Physics)
Anja Gude
(Max Planck Institute for Plasma Physics)
Felix Klossek
(Max Planck Institute for Plasma Physics)
Mark Maraschek
(Max Planck Institute for Plasma Physics)
Bernhard Sieglin
(Max Planck Institute for Plasma Physics)
Collaboration:
ASDEX Upgrade team
This contributions gives a brief introduction into the model and the underlying physical picture. It reports on recent experimental tests of the model carried out for high-power H-mode plasma on ASDEX Upgrade. It is shown, that active XPR control, which is normally achieved by nitrogen seeding, can also be achieved by deuterium fueling. Also disruption avoidance schemes for the H-Mode density limit [5] have been studied using both the D fueling rate and the auxiliary heating power as actuators. Predictions are made for JET, ITER and DEMO and the different behavior of XPRs and marfes for different seeding gases is discussed.
*This work has been carried out within the framework of the EUROfusion Consortium and has received funding from the Euratom research and training programme 2014–2018 and 2019–2020 under Grant Agreement No. 633053. The views and opinions expressed herein do not necessarily reflect those of the European Commission.
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