CONFINEMENT AND HEATING OF FRC PLASMA

Confinement times of particle and trapped magnetic flux in FRC plasmas were simulated using a one dimensional transport model and classical (Spitzer's) resistivity. Comparing the simulation results and experime ntal results indicated that a transport in the plasmas was basically c lassical and deviations of experimental results from classical values (so-called anomaly) might attribute to a plasma geometry effect, by wh ich the deviation was larger for fat plasmas and smaller for prolate o nes. In order to verify this indication, a plasma electron heating wit h an axial injection of pulsed and intense ion beams was proposed for the plasmas in current FRC experiments. Possibility of this heating we re examined by estimating an energy deposit rate of a beam ion in the plasmas. The energy deposit rate is a few%similar to about 100% for a plasma of 12cm in diameter and 80cm in length with a plasma parameter range of current experiments.