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Collisional merging process of field-reversed configuration plasmas in the FAT-CM device

July 2018 | F. Tanaka (Nihon Univ.) | Plasma and Fusion Research | Paper

In order to investigate the collisional merging process of field-reversed configurations (FRCs), the FAT device has recently been upgraded to FAT-CM, consisting of two field-reversed theta-pinch (FRTP) formation sections and the confinement section.

Internal Magnetic Field Measurements of Translated and Merged Field-Reversed Configuration Plasmas in the FAT-CM Device

August 2018 | H. Gota | Review of Scientific Instruments | Paper

Field-reversed configuration (FRC) Amplification via Translation–Collisional Merging (FAT-CM) experiments have recently commenced to study physics phenomena of colliding and merged FRC plasma states.

Calibration and applications of visible imaging cameras on the C-2U advanced beam-driven field-reversed configuration device

August 2018 | E. M. Granstedt | Review of Scientific Instruments | Paper

Two filtered, fast-imaging instruments, with radial and axial views, respectively, were used on the C-2U device to visualize line emission from impurities and hydrogenic neutrals.

Magnetic diagnostic suite of the C-2W field-reversed configuration experiment

July 2018 | T. Roche | Review of Scientific Instruments | Paper

A fundamental component of any magnetically confined fusion experiment is a firm understanding of the magnetic field. The increased complexity of the C-2W machine warrants an equally enhanced diagnostic capability.

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

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

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.