End loss analyzer system for measurements of plasma flux at the C-2U divertor electrode

End loss analyzer system for measurements of plasma flux at the C-2U divertor electrode

August 2016 | M. E. Griswold | Review of Scientific Instruments | Paper

An end loss analyzer system consisting of electrostatic, gridded retarding-potential analyzers and pyroelectric crystal bolometers was developed to characterize the plasma loss along open field lines to the divertors of C-2U. The system measures the current and energy distribution of escaping ions as well as the total power flux to enable calculation of the energy lost per escaping electron/ion pair.

First fast-ion D-alpha (FIDA) measurements and simulations on C-2U

First fast-ion D-alpha (FIDA) measurements and simulations on C-2U

August 2016 | N. G. Bolte | Review of Scientific Instruments | Paper

The first measurements of fast-ion D-alpha (FIDA) radiation have been acquired on C-2U, Tri Alpha Energy’s advanced, beam-driven field-reversed configuration (FRC). These measurements are also forward modeled by FIDASIM. This is the first measurement and simulation of FIDA carried out on an FRC topology.

Jet Outflow Measurements on the C-2U Beam Driven Field-Reversed Configuration Experiment

Jet Outflow Measurements on the C-2U Beam Driven Field-Reversed Configuration Experiment

August 2016 | Daniel Sheftman | HTPD | Poster

Knowledge and control of the axial outflow of plasma particles and energy along open field lines are of crucial importance to the stability and longevity of advanced beam-driven FRC plasma.

Absolute calibration of neutron detectors on the C-2U advanced beam-driven FRC

Absolute calibration of neutron detectors on the C-2U advanced beam-driven FRC

August 2016 | R. M. Magee | Review of Scientific Instruments | Paper

In the C-2U fusion energy experiment, high power neutral beam injection creates a large fast ion population that sustains a field-reversed configuration (FRC) plasma. The diagnosis of the fast ion pressure in these high-performance plasmas is therefore critical, and the measurement of the flux of neutrons from the deuterium-deuterium (D-D) fusion reaction is well suited to the task.

Fast imaging diagnostics on the C-2U advanced beam-driven field-reversed configuration device

Fast imaging diagnostics on the C-2U advanced beam-driven field-reversed configuration device

August 2016 | E. M. Granstedt | Review of Scientific Instruments | Paper

The C-2U device employed neutral beam injection, end-biasing, and various particle fueling tech- niques to sustain a Field-Reversed Configuration (FRC) plasma. As part of the diagnostic suite, two fast imaging instruments with radial and nearly axial plasma views were developed using a common camera platform.

Dual wavelength imaging of a scrape-off layer in an advanced beam-driven field-reversed configuration

Dual wavelength imaging of a scrape-off layer in an advanced beam-driven field-reversed configuration

August 2016 | D. Osin | Review of Scientific Instruments | Paper

A dual wavelength imaging system has been developed and installed on C-2U to capture 2D images of a He jet in the Scrape-O↵ Layer (SOL) of an advanced beam-driven Field-Reversed Configuration (FRC) plasma. The system was designed to optically split two identical images and pass them through 1 nm FWHM filters.