Impurity-ion rotation dynamics in C-2W
November 2020 | M. Nations | APS-DPP | Poster
Edge biasing of annular electrodes in the divertor region is routinely utilized as a boundary control technique to stabilize the FRC in the confinement vessel.
Zeff Measurements Using Visible and Near-infrared Bremsstrahlung Radiation in C-2W
October 2018 | M. Nations | APS-DPP | Poster
One of the key advantages of using two different spectral regions (VIS and NIR) to measure bremsstrahlung continuum is that they have different pollutant sensitivities
Development of a Zeff diagnostic using visible and near-infrared bremsstrahlung light for the C-2W field-reversed configuration plasma
October 2018 | M. Nations | Review of Scientific Instruments | Paper
In C-2W, an elevated impurity concentration can lead to significant degradation of plasma performance and energy losses through radiation.
Development of a Zeff Diagnostic Using Visible and Near-infrared Bremsstrahlung Light for the C-2W Field-Reversed Configuration Plasma
April 2018 | M. Nations | HTPD2018 | Poster
The presence of impurities can significantly affect plasma performance since they can account for substantial radiative power losses. To keep impurity content of the plasma low, mitigating strategies (e.g., wall conditioning by titanium gettering) are employed to help pump neutrals and reduce wall recycling