Plasma heating and current drive systems for the Fusion Ignition Research Experiment (FIRE)

FIRE is a high-field, burning-plasma tokamak that is being studied as a possible option for future fusion research. Preliminary parameters for this machine are R/sub 0/=2 m, a=0.5 m, B/sub 0/=10 T, and I/sub p/=6 MA. Magnetic field coils are to be made of copper and pre-cooled with LN/sub 2/ before each shot. The flat-top pulse length desired is /spl ges/10 s. Ion cyclotron and lower hybrid rf systems will be used for heating and current drive. Present specifications call for 30 MW of ion cyclotron heating power, with 25 MW of lower hybrid power as an upgrade option.