Observation of geodesic acoustic mode in EAST using Doppler backscattering system

2018 ◽  
Vol 25 (9) ◽  
pp. 092503
Author(s):  
X. H. Zhang ◽  
A. D. Liu ◽  
C. Zhou ◽  
J. Q. Hu ◽  
M. Y. Wang ◽  
...  
Keyword(s):  
Acoustic Mode ◽  
Geodesic Acoustic Mode

Effects of passing energetic particles on geodesic acoustic mode

2014 ◽  
Vol 21 (10) ◽  
pp. 102506 ◽  
Author(s):  
Haijun Ren ◽  
Chao Dong
Keyword(s):  
Energetic Particles ◽  
Acoustic Mode ◽  
Geodesic Acoustic Mode

Geodesic Acoustic Mode in Toroidal Plasma

2010 ◽  
Author(s):  
N. Chakrabarti ◽  
P. N. Guzdar ◽  
R. G. Kleva ◽  
R. Singh ◽  
P. K. Kaw ◽  
...  
Keyword(s):  
Acoustic Mode ◽  
Toroidal Plasma ◽  
Geodesic Acoustic Mode

Nonlinear excitation of a geodesic acoustic mode by reversed shear Alfvén eignemodes

2021 ◽  
Author(s):  
Yahui Wang ◽  
Tao Wang ◽  
Shizhao Wei ◽  
Zhiyong Qiu
Keyword(s):  
Steady State ◽  
Plasma Heating ◽  
Acoustic Mode ◽  
Decay Process ◽  
Nonlinear Excitation ◽  
Parametric Decay ◽  
Geodesic Acoustic Mode ◽  
Burning Plasmas ◽  
Reversed Shear ◽  
Excitation Conditions

Abstract The parametric decay process of a reversed shear Alfv\'{e}n eigenmeode (RSAE) into a geodesic acoustic mode (GAM) and a kinetic reversed shear Alfv\'{e}n eigenmode (KRSAE) is investigated using nonlinear gyrokinetic theory. The excitation conditions mainly require the pump RSAE amplitude to exceed a certain threshold, which could be readily satisfied in burning plasmas operated in steady-state advanced scenario. This decay process can contribute to thermal plasma heating and confinement improvement.

Electromagnetic characteristics of geodesic acoustic mode in the COMPASS tokamak

2017 ◽  
Vol 57 (12) ◽  
pp. 126048 ◽  
Author(s):  
J. Seidl ◽  
J. Krbec ◽  
M. Hron ◽  
J. Adamek ◽  
C. Hidalgo ◽  
...  
Keyword(s):  
Acoustic Mode ◽  
Geodesic Acoustic Mode ◽  
Electromagnetic Characteristics

scholarly journals Comprehensive comparisons of geodesic acoustic mode characteristics and dynamics between Tore Supra experiments and gyrokinetic simulations

2015 ◽  
Vol 22 (6) ◽  
pp. 062508 ◽  
Author(s):  
A. Storelli ◽  
L. Vermare ◽  
P. Hennequin ◽  
Ö. D. Gürcan ◽  
G. Dif-Pradalier ◽  
...  
Keyword(s):  
Acoustic Mode ◽  
Geodesic Acoustic Mode ◽  
Mode Characteristics ◽  
Gyrokinetic Simulations

Global geodesic acoustic mode in a tokamak with positive magnetic shear and a monotonic temperature profile

2014 ◽  
Vol 56 (3) ◽  
pp. 035001 ◽  
Author(s):  
V I Ilgisonis ◽  
I V Khalzov ◽  
V P Lakhin ◽  
A I Smolyakov ◽  
E A Sorokina
Keyword(s):  
Temperature Profile ◽  
Acoustic Mode ◽  
Magnetic Shear ◽  
Geodesic Acoustic Mode
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