Speaker
JaeChun Seol
Description
See the full Abstract at http://ocs.ciemat.es/EPS2018ABS/pdf/P5.1089.pdf
Collisionless damping of geodesic acoustic modes with a finite inverse
aspect ratio
J. Seol1, K. C. Shaing2
1 National Fusion Research Institute, Daejeon, Republic of Korea
2 National Cheng Kung University, Tainan, Taiwan
In this study, the theory of geodesic acoustic modes is extended to the tokamak plasmas with
a finite inverse aspect ratio. Using the drift kinetic equation, we investigate the collisionless
damping rate of geodesic acoustic mode both analytically and numerically. The damping rate
is reduced as the inverse aspect ratio increases.
