Measuring dynamic fast ion spatial profiles with fusion protons in the Madison Symmetric Torus

Measuring dynamic fast ion spatial profiles with fusion protons in the Madison Symmetric Torus

July 2018 | R. M. Magee | Review of Scientific Instruments | Paper

Neutral beam injected fast ions play a dominant role in both the field reversed configuration (FRC) at TAE Technologies and the Madison Symmetric Torus (MST) reversed field pinch (RFP), making fast ion diagnosis a major pillar of both research programs.

Performance Improvement of a Magnetized Coaxial Plasma Gun by adopting Iron-Core Bias Coil and Pre-Ionization Systems

Performance Improvement of a Magnetized Coaxial Plasma Gun by adopting Iron-Core Bias Coil and Pre-Ionization Systems

March 2018 | T. Edo | Plasma and Fusion Research | Paper

A magnetized coaxial plasma gun (MCPG) is utilized to generate a compact toroid (CT). An MCPG-type CT injector had been developed as a particle refueling system for C-2/C-2U field-reversed configuration (FRC) plasmas. To inject CTs repetitively for a long-lived plasma, the injector has been upgraded.

Theory of ion dynamics and heating by magnetic pumping in FRC plasma

Theory of ion dynamics and heating by magnetic pumping in FRC plasma

July 2018 | J. Egedal | Physics of Plasmas | Paper

A new mathematical framework is developed for efficient evaluation of ion heating during magnetic pumping of field-reversed configuration (FRC) plasmas. The topology of ion trajectories is examined through the use of action variables applied to a typical FRC equilibrium.