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Effect of Ionization on Void Formation in an RF Discharge under Microgravity Conditions.
- Source :
-
Plasma Physics Reports . Feb2023, Vol. 49 Issue 2, p290-295. 6p. - Publication Year :
- 2023
-
Abstract
- An analysis of the formation of a void in the PK3 setup in dusty plasma with 3.4-μm-diameter melamine–formaldehyde particles—in an RF discharge in argon at a pressure of 12–50 Pa under microgravity conditions at the ISS is presented. The uniform state of the plasma can only be obtained at a voltage close to the discharge extinction voltage. The application of a low-frequency voltage of 20–50 Hz stabilizes the state of the dusty plasma and shifts the void formation threshold towards higher RF voltages. It is shown that the formation of a void is associated with non-local ionization of the plasma at the center of the discharge by fast electrons, which are heated in the near-electrode layers. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 1063780X
- Volume :
- 49
- Issue :
- 2
- Database :
- Academic Search Index
- Journal :
- Plasma Physics Reports
- Publication Type :
- Academic Journal
- Accession number :
- 163151065
- Full Text :
- https://doi.org/10.1134/S1063780X22601961