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 JO05: Edge and Pedestal Physics
2:00 PM–5:00 PM,
Tuesday, October 18, 2022
Room: Ballroom 111 B
Chair: Roberto Maurizio, Oak Ridge Associated Universities / General Atomics
Abstract: JO05.00011 : Kinetic effects in tokamak edge plasmas - nonlocal parallel transport and plasma-atomic reactions*
4:12 PM–4:24 PM
Presenter:
Dominic Power
(Imperial College of London)
Authors:
Dominic Power
(Imperial College of London)
Stefan Mijin
(UKAEA)
Fulvio Militello
(UKAEA)
Robert J Kingham
(Imperial College London)
For these reasons, tokamak edge plasmas have been investigated using the 1D kinetic electron code SOL-KiT [1] across a wide range of collisionalities. We see increasing kinetic effects, in particular modifications to the heat flux and boundary behaviour, in reactor-relevant regimes. There are also large differences observed (up to 50% suppression) in the predicted radiative losses from non-hydrogenic impurity species, due to kinetic modifications of plasma-impurity reaction rates.
[1] S. Mijin, A. Antony, F. Militello, R.J. Kingham, Computer Physics Communications (2021), 258, 107600.
*Engineering and Physical Sciences Research Council (UK) and the UK Atomic Energy Authority.
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