The 4th International Conference on Matter and Radiation at Extremes (ICMRE 2019)

351 / 2019-02-27 13:09:04

Simulation on the compressed field-reversed configuration with alpha particle self-heating

: Compression of FRC, self-heating, alpha particles, plasma burning

Plenary track > Fundamental Physics at Extremes

Study on the compression of field-reversed configuration (FRC) by a magnetic
driven solid liner is carried out based a one-dimension code. In the investigation, non-local
plasma heating effect by alpha particles is taken into account. Numerical result shows that the self-heating of alpha particles to DT plasma mainly occurs in the vicinity of O-point of the field-reversed configuration target. The plasma ignition region is divided into two parts: low density ignition region near the central axis and high density ignition region in the O-point area. Before FRC plasma target expansion, energy of alpha particles is well confined nearby the O-point by compressed magnetic. The DT plasma volume burning exists in short time (approximately 0.1us) after a maximum convergence ratio of solid liner. And compressed strong magnetic field degrades the propagation of FRC plasma burning.