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[en] A DC discharge dusty plasma device used for study of waves in dusty plasma is introduced. A dusty plasma column is produced with about 30 cm in length and about 8.4 cm in diameter. The electron saturation current of Langmuir probe is obviously decreasing while the dust grains are present in the plasma. The negative charge on dust grains is directly proportional to the rotation rate of the dispenser. And the dust grains carry up to 40% of the negative charges in the whole plasma
Journal
Nuclear Fusion and Plasma Physics; ISSN 0254-6086; 
; v. 20(3); p. 180-184
; v. 20(3); p. 180-184