Michael, C. A.; Howard, J.; Blackwell, B. D.
The influence of ion-neutral collisions on the ion and neutral distribution functions is studied in low field (<0.15 T)rf heated argon discharges of the H-1 Heliac [S. M. Hamberger, B. D. Blackwell, L. E. Sharp, and D. B. Shenton, Fusion Technol. 17, 123 (1990)], both experimentally and theoretically. The distribution functionmeasurements are based on the Doppler broadening of plasma ion and neutral spectral lines using a novel coherence imaging camera. Measurements show that neutrals are...[Show more]
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