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.

Details

Design of a Custom Insertable Probe Platform for Measurements of C-2W Inner Divertor Plasma Parameters

August 2018 | A. DuBois | Review of Scientific Instruments | Paper

A custom motor controlled probe system has been designed to make spatially resolved measurements of temperature, density, flow, and plasma potential in the C-2W inner divertors.

Details

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.

Details

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.

Details

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.

Details

Fast-ion D-alpha diagnostic development for the C-2W field-reversed configuration plasma

August 2018 | N. G. Bolte | Review of Scientific Instruments | Paper

TAE Technologies’s advanced beam-driven field-reversed configuration device has a large fast-ion population, allowing for fast-ion D-alpha (FIDA) studies.

Details

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.

Details

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.

Details

Experimental characterization of Alfven modes in a field-reversed configuration plasma

June 2018 | R.M. Magee | Nuclear Fusion | Paper

High power neutral beam injection into the C-2U advanced field-reversed configuration (FRC) stimulates at least three distinct energetic particle modes, none of which have been linked to
a performance limitation. Here we present an experimental characterization of one mode in particular, a high frequency mode ( f > fci ) observed in the decaying phase of the FRC.

Details