# Global linear and nonlinear gyrokinetic modelling of Alfvén eigenmodes in ITER

@article{HaywardSchneider2020GlobalLA, title={Global linear and nonlinear gyrokinetic modelling of Alfv{\'e}n eigenmodes in ITER}, author={Thomas Hayward-Schneider and Philipp Lauber and Alberto Bottino and Z.X. Lu}, journal={Nuclear Fusion}, year={2020}, volume={61} }

Linear and nonlinear modelling of Alfvénic instabilities, most notably toroidal Alfvén eigenmodes (TAEs), obtained by using the global nonlinear electromagnetic gyrokinetic model of the code ORB5 are presented for the 15 MA scenario of the ITER tokamak. Linear simulations show that elliptic Alfvén eigenmodes and odd-parity TAEs are only weakly damped but not excited by alpha particles, whose drive favours even-parity TAEs. Low mode number TAEs are found to be global, requiring global treatment… Expand

#### 2 Citations

Numerics and computation in gyrokinetic simulations of electromagnetic turbulence with global particle-in-cell codes

- Physics
- 2021

Electromagnetic turbulence is addressed in tokamak and stellarator plasmas with the global gyrokinetic particle-in-cell codes ORB5 (E Lanti et al, Comp. Phys. Comm., 251, 107072 (2020)) and EUTERPE… Expand

Alpha particle driven Alfvénic instabilities in ITER post-disruption plasmas

- Physics
- 2020

Fusion-born alpha particles in ITER disruption simulations are investigated as a possible drive of Alfvénic instabilities. The ability of these waves to expel runaway electron (RE) seed particles is… Expand

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