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Forward cw CO/sub 2/-laser scattering on a high density plasma column

Journal Article · · J. Appl. Phys.; (United States)
DOI:https://doi.org/10.1063/1.332805· OSTI ID:5602269
Wave-number and frequency spectra S(k,..omega..) associated with spontaneous electrostatic fluctuations in a high-density (5 x 10/sup 21/ m/sup -3/) current-driven plasma are measured using forward CO/sub 2/-laser scattering with homodyne detection. Scattering measurements during the quiescent plateau phase of the discharge show fluctuation levels several orders of magnitude above the thermal level with k/sup -4/ and ..omega../sup -2/ spectral amplitude dependences. The fluctuations are found to be isotropic in a plane transverse to the magnetic axis with S(k/sub parallel/,..omega..)<
Research Organization:
Institut de Recherche d'Hydro-Quebec, C.P. 1000, Varennes, Quebec, Canada JOL 2PO
OSTI ID:
5602269
Journal Information:
J. Appl. Phys.; (United States), Journal Name: J. Appl. Phys.; (United States) Vol. 54:9; ISSN JAPIA
Country of Publication:
United States
Language:
English