Current Drive by Fast Magnetosonic Waves Near the Lower Hybrid Frequency in the JIPP T-IIU Tokamak.

摘要

Current drive by fast magnetosonic waves is successfully performed in the JIPP T-IIU tokamak by means of a four-element dipole antenna array with Faraday shield. The plasma current of about 40 kA is sustained by RF power of about 50 kW in the low density plasma of 2 - 4 x 10/sup 12/ cm/sup -3/ with an efficiency comparable to that of the slow wave current drive. A clear density limit for fast magnetosonic current drive exists contrary to theoretical expectations based on linear wave propagation. (Atomindex citation 18:007162)