Nonlinear conductivity of lower-hybrid-wave heated plasma in the presence of an electric field

摘要

A new conductivity for lower-hybrid-wave heated plasmas is derived. This induced conductivity shows a nonlinear behavior in the presence of an electric field and can represent the plasma as an active element. The role of runaway electrons produced is important on this nonlinear conductivity. The new expression may be important for radio frequency current drive ramp-up and current drive efficiency by the lower-hybrid wave. (C) 2001 American Institute of Physics. [References: 15]