Effects of ionization on the presheath in flowing magnetized plasma

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Abstract

The effect of ionization on the presheath is analyzed kinetically in flowing magnetized plasma with finite ion temperature. Ion distributions along the presheath are obtained self-consistently with Boltzmann electrons. Sheath potential, ion sheath current density, and ratio (R) of upstream to downstream current density are obtained as a function of plasma drift velocity (V d) and ionization rate (σi). Calibration factor (K) in the form of R=exp[KM] decreases with σi, where M is the drift velocity in units of [(ZTe + Ti∞)/m i]0.5.

Original languageEnglish
Pages (from-to)1177-1181
Number of pages5
JournalJournal of Applied Physics
Volume71
Issue number3
DOIs
StatePublished - 1992

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