Direct electron heating at moderate harmonic number for compact ignition devices

Direct electron heating of compact ignition devices by radio-frequency power OSTI Abstract. in the 300-400 MHz,range is discussed. The possible advantage of this approach to heating an ignition device, as opposed to resonant heating of an ion population, is the insensitivity to the exact value of the magnitude field. Heating with central power deposition during a toroidal field ramp is therefore possible.