Electrostatic Ion-Acoustic Shocks Produced by Density Steps

Electrostatic Ion-Acoustic Shocks Produced by Density Steps

Observation of large-amplitude ion-acoustic shocks produced by superposition of a pulsed photoionized plasma slab on a dc background. The Mach number M increases as a function of the step ratio R up to a maximum of M approximately equal to 2.5 for R = 20. Above R = 5 and a shock jump of delta n/n ap...

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Veröffentlicht in:Phys. Rev. Lett. 28: No. 11, 656-8(13 Mar 1972) 656-8(13 Mar 1972), 1972-01, Vol.28 (11), p.656-658
Hauptverfasser: Cohn, D. B., MacKenzie, K. R.
Format: Artikel
Sprache:eng
Schlagworte:
AMPLITUDES
ION ACOUSTIC WAVES
N70900 -Physics-Controlled Thermonuclear Research-Wave Phenomena
PLASMA
PLASMA DENSITY
PLASMA WAVE PHENOMENA/ion acoustic shock production by density steps in plasma, (E)
SHOCK WAVES
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Beschreibung
Zusammenfassung:Observation of large-amplitude ion-acoustic shocks produced by superposition of a pulsed photoionized plasma slab on a dc background. The Mach number M increases as a function of the step ratio R up to a maximum of M approximately equal to 2.5 for R = 20. Above R = 5 and a shock jump of delta n/n approximately equal to 1, the shock widths start to broaden severely with distance from the source.
ISSN:0031-9007
DOI:10.1103/PhysRevLett.28.656