Integration of a portable spectroscopy system on the PFRC-2 device

A portable spectroscopic system has been developed to measure both the ion and electron properties of multiple innovative fusion concepts. The system is designed to maximize versatility and portability because it will be deployed on multiple devices which have significantly different parameters. There are 2 spectrometers with 6 total tunable gratings. The multiple tunable gratings allow for a wide variety of spectral resolution and spectral range to be assessed depending upon the plasma conditions. Both Thomson scattering and optical emission spectroscopy are measured simultaneously on the separate spectrometers. Ion temperatures are determined via Doppler broadening of impurities while electron density and temperature are determined from Thomson scattering as well as line ratio comparisons. This system was recently deployed on the Princeton Field Reversed Configuration-2. The specifics of that deployment are described here including calibration, spatial and temporal resolution achieved, as well as initial results.