C-2W FRC plasma Te and ne profiles comparison under different machine configurations

C-2W is an advanced beam driven Field Reversed Configuration (FRC) fusion device, in which plasma sustainment with total temperature above 5 keV has been demonstrated [1]. In order to better understand the machine performance and to prepare for the design of TAE’s next generation experiment device, called Copernicus, a series of experiments with different field configuration and fueling schemes have been carried out on C-2W. In summary we have studied plasma behavior in three mirror field configurations with no mirror plug, external mirror plug, and internal mirror plug. In parallel with these field configuration experiments, we have also studied different fueling schemes in which gas fueling is introduced from different locations and from the additionally installed gas section with moveable fueling pipe. The corresponding plasma behavior of electron temperature and density profile measured in these experiments will be reported.

1. Gota et al, "Overview of C-2W: High-temperature, steady-state beam-driven field-reversed configuration plasmas", Nucl. Fusion 61, 106039 (2021)