Tangential CT injection and 1.5 cycle AC operation experiments on STOR-M

In the STOR-M tokamak, tangential injection of a low mass compact torus (CT) has resulted in doubling of the electron density and reduction in both the loop voltage and Hα radiation. Numerical calculation suggests that deeper penetration can be achieved if the initial CT magnetic dipole is aligned with the velocity. Successful AC operation with 1.5 cycles has also been achieved in STOR-M. It has been found that plasma position and density control is crucial to achieve a smooth reversal of ± 18 kA plasma current. (author). 7 refs, 3 figs