Control of Toroidal Plasma Flow in the STOR-M Tokamak and Investigation of the Geodesic Acoustic Mode

The Saskatchewan Torus Modified (STOR-M) is an iron core tokamak and the only operating tokamak in Canada which has been in operation since 1987. The major and minor radius of the STOR-M are 46 cm and 12 cm respectively. Different types of experiments such as AC operation, Ohmic H-modes by rapid edge heating and Compact Torus Injection (CTI), plasma flow control by applying Resonant Magnetic Perturbation (RMP) and CTI, and recently detection of Geodesic Acoustic Modes (GAM) have been conducted in this tokamak. Experimental data indicate that toroidal rotational flow of the tokamak plasma is controllable by applying a RMP and a tangential CTI. On the other hand experimental results indicate presence of GAM like oscillation in this machine. Detailed discussions have been done in the following sections. (author)