Improved Magnetic Field Generation Efficiency and Higher Temperature Spheromak Plasmas.

摘要

New understanding of the mechanisms governing the observed magnetic field generation limits on the Sustained Spheromak Physics Experiment has been obtained. Extending the duration of magnetic helicity injection during the formation of a spheromak and optimizing the ratio of injected current to bias flux produces higher magnetic field plasmas with record spheromak electron temperatures. To explore magnetic field buildup efficiency limits, the confinement region geometry was varied resulting in improved field buildup efficiencies.