Inference of field reversed configuration topology and dynamics during Alfvenic transients

February 2018 | J.A. Romero | Nature Communications | Paper

Active control of field reversed configuration (FRC) devices requires a method to determine the flux surface geometry and dynamic properties of the plasma during both transient and steady-state conditions.

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Spectral and Intensity Calibration of a Thomson Scattering Diagnostic for the C-2W Field- Reversed Configuration Plasma Experiment

April 2018 | T. Schindler | HTPD2018 | Poster

The C-2W Thomson Scattering diagnostic consists of two individual systems for monitoring electron temperature and density; one system in the central region is operational and the second system, currently under design, will monitor the open field line jet region1.

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Magnetic Diagnostic Suite of the C-2W Field-Reversed Configuration Experiment

April 2018 | T. Roche | HTPD2018 | Poster

The C-2W machine is the world’s premier Advanced Beam-Driven FRC
n Monitoring the complete magnetic evolution of the plasma is essential for
understanding the system’s dynamics
n Over 500 B-field signals are monitored to provide both post-shot analysis data and data for an advanced active feedback system.

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Fast-framing camera based observations of spheromak-like plasmoid collision and merging process using two magnetized coaxial plasma gun

April 2018 | T. Matsumoto | HTPD2018 | Poster

We have been conducting compact toroid (CT) collision and merging experiments by using two magnetized
coaxial plasma guns (MCPG). As is well known, an actual CT/plasmoid moves macroscopically in a confining magnetic field. Therefore, three-dimensional measurements are important in understanding the behavior of the CTs.

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C-2W Magnetic Measurement Suite

October 2017 | T. Roche | APS-DPP | Poster

Monitoring the complete magnetic evolution of the plasma is essential for understanding the system’s dynamics. Over 1000 B-field signals are monitored to provide both post-shot analysis data and data for an advanced active feedback system under development

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Multi-Wavelength Interferometry and Axial Polarimetry on C-2W

October 2017 | Roger J Smith | APS-DPP | Poster

Tri Alpha Energy’s C-2W device is operational and represents another major step in a progression of advanced beam-driven Field-Reversed Configuration (FRC) confinement devices that have prolonged the lifetime, increased stability and added significant neutral beam injection power to heat and sustain an FRC plasma.

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Separatrix E×B Shear Flows and Turbulence Propagation in the C-2U FRC; Diagnostic Upgrades for Density and Magnetic Field Fluctuation Measurements in C-2W

October 2017 | L. Schmitz | APS-DPP | Poster

Ion-scale modes have been shown to be stable in the C-2/C-2FRC core, in agreement with initial gyrokinetic simulation results, with a characteristic inverted toroidal wavenumber spectrum confirmed via Doppler Backscattering (DBS) measurements.

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