TY - JOUR AU - Entley, W AU - Langan, J AU - Felker, B AU - Sobolewski, Mark C2 - Journal of Applied Physics DA - 1999-11-01 00:11:00 LA - en M1 - 86 PB - Journal of Applied Physics PY - 1999 TI - Optimizing Utilization Efficiencies in Electronegative Discharges: The Importance of the Impedance Phase Angle ER -