Plasma Production with Rotating Ion Cyclotron Wave Excited by Nagoya Type-3 Antennas in RFC-XX

摘要

A method of plasma production with ion cyclotron wave heating was developed in RFC-XX. Nagoya Type-3 antennas were used for the wave excitation and the gas supply was through a gas box. The effect of the rotation field excitation in plasma production and heating was investigated. In m = -1 rotation mode (rotation in the direction of ion cyclotron motion), the plasma density profile is flat within the gas box bore with the line-integrated density n1 = 3 x 10 to the 13th power/sq cm and the ion temperature T sub i approx. 150 eV. For m = +1 mode, a high density plasma was obtained with a different profile which has a peak at the center. In this mode the line-integrated density is nl = 3 x 10 to the 14th power/sq cm with the peak density n(o) = 7 x 10 to the 13th power/cu cm.