Geodesic acoustic mode (GAM) like oscillations and RMP effect in the STOR-M tokamak

• Published in: Nuclear fusion Vol. 58; no. 2; pp. 24001 - 24006
• Main Authors: Basu, Debjyoti, Nakajima, Masaru, Melnikov, A.V., McColl, David, Rohollahi, Akbar, Elgriw, Sayf, Xiao, Chijin, Hirose, Akira
• Format: Journal Article
• Language: English
• Published: IOP Publishing 01.02.2018
• Subjects: plasmas; tokamak; turbulent

A new kind of quasi-coherent mode was observed in ohmic plasma in the STOR-M tokamak. It is featured with a clear solitary peak around 30-35 kHz in the power spectra of the ion saturation current (Isat) of Langmuir probe as well as poloidal and toroidal mode numbers (m  =  1,n  =  0) as per the pred...