Doppler coherence imaging of ion flows and temperatures in the MAGPIE helicon plasma
A snapshot coherence imaging system has been designed to measure brightness, flows and temperatures for argon ions in a helicon plasma with expected ion temperatures of ~1 eV and subsonic ion flows less than 1000 m/s. This technique measures Doppler information from the 488 nm ion spectral line, and encodes this information in the phase and contrast of an interferogram. Taking into account line-of-sight effects, demodulation of the interferogram yields a 2D spatial map of the ion temperatures...[Show more]
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