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 UP11: Poster Session VIII: In-Person, Hall A (2:00-3:30pm) and Virtual Poster Presentations (3:45-5:00pm)
MFE: Whole Device Modeling, High Field Tokamaks, Tokamak Physics, DIII-D
FUND:Reconnection, Turbulence
2:00 PM - 5:00 PM
Thursday, October 20, 2022
Room: Exhibit Hall A and Online
Abstract: UP11.00010 : Relaxation of energetic particles distribution in NUBEAM due to the multitude of Alfvenic oscillations*
Presenter:
Marina V Gorelenkova
(Princeton Plasma Physics Laboratory)
Authors:
Marina V Gorelenkova
(Princeton Plasma Physics Laboratory)
Alexei Y Pankin
(Princeton Plasma Physics Laboratory)
Nikolai N Gorelenkov
(Princeton Plasma Physics Laboratory)
Mario L Podesta
(Princeton Plasma Physics Laboratory)
Vinicius N Duarte
(Princeton Plasma Physics Laboratory)
Joshua A Breslau
(Princeton Plasma Physics Laboratory)
Laszlo Glant
(Princeton Plasma Physics Laboratory)
Mariya Goliyad
(Princeton Plasma Physics Laboratory)
Gopan Perumpilly
(Princeton Plasma Physics Laboratory)
Jai Sachdev
(Princeton Plasma Physics Laboratory)
Francesca M Poli
(Princeton Plasma Physics Laboratory)
oscillations is simulated in burning plasma ITER conditions. We
utilize a numerical scheme to map 2D diffusion and convection
coefficients for energetic particle transport in energy and minor
radius to the constant of motion (COM) space. The diffusion/convection
kick steps are chosen to allow the sufficient diffusion over the time
longer than the characteristic resonant EP motion in the island. Steady state ITER scenario with a strongly reversed
q-profile is analyzed. The ideal MHD code NOVA is used to analyze stability of Alfvén Eigenmodes (AE). In the presence of fusion alphas, 12 unstable
AEs were found out of 600 AEs.The RBQ code is used to compute EP diffusion
Coefficients for these 12 unstable AEs with delta B/B = 10^-3 - 10^-2.
These diffusion and convection coefficients are used in NUBEAM to simulate the overall EP transport.
*Work supported by US DOE Contract No. DE-AC02-09CH11466
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