A Low-Cost, High Power RF Resonance System Phase II Results

Eagle Harbor Technologies, Inc. (EHT) has completed a Phase II program to develop a pulsed RF system for plasma heating and heat pulse diagnostic. The RF burst is produced by a nonlinear transmission line (NLTL) driven by an inductive adder. EHT designed several unique diode-based NLTLs with voltages up to 30 kV at output frequencies of several hundred megahertz to several gigahertz. To demonstrate RF plasma heating experiments were conducted in the EHT testing chamber. The EHT experimental system consists of a high-power helicon, which can generate high density hydrogen plasmas that are confined in a magnetic bottle configuration. We will present results showing RF generation and details of the plasma heating experiments.