Results from Preliminary FLARE Operation and Development of Tomographic Ion Doppler Spectroscopy Diagnostic

The Facility for Laboratory Reconnection Experiments (FLARE) has been constructed with the aim of answering many longstanding problems in magnetic reconnection research. Many of these problems relate to the conversion of magnetic energy to particle energy. One of the most important diagnostics for studying the energy flow on FLARE is a measurement of spatial profiles of ion temperature. Expected ion temperatures between 5-30eV on FLARE make in-situ measurement possible, such as those made on FLARE’s predecessor, MRX. This technique however, relies on reconstructing 2-D profiles by averaging over many shots. This method is cost prohibitive and restricts studies to a single case. For this purpose, a 2-D Doppler spectroscopy diagnostic is being designed that will utilize tomographic inversion to reconstruct Ion temperature profiles from measured broadening of emission lines. This presentation covers the design, numerical tests, early construction, and possible applications of the aforementioned probe as well as a brief overview of early results from first FLARE operation.