Instability-enhanced collisional effects and Langmuir's paradox

Anomalously fast equilibration of the electron distribution function to a Maxwellian in gas-discharge plasmas with low temperature and pressure, i.e., Langmuir's paradox, may be explained by electron scattering via an instability-enhanced collective response and hence fluctuations arising from...

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Veröffentlicht in:	Physical review letters 2009-06, Vol.102 (24), p.245005-245005, Article 245005
Hauptverfasser:	Baalrud, S D, Callen, J D, Hegna, C C
Format:	Artikel
Sprache:	eng
Schlagworte:	70 PLASMA PHYSICS AND FUSION TECHNOLOGY CHARGED PARTICLES CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS DISTRIBUTION FUNCTIONS ELECTRONS ELEMENTARY PARTICLES FERMIONS FLUCTUATIONS FUNCTIONS INSTABILITY IONS LEPTONS PLASMA SCATTERING VARIATIONS
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Zusammenfassung:	Anomalously fast equilibration of the electron distribution function to a Maxwellian in gas-discharge plasmas with low temperature and pressure, i.e., Langmuir's paradox, may be explained by electron scattering via an instability-enhanced collective response and hence fluctuations arising from convective ion-acoustic instabilities near the discharge boundaries.
ISSN:	0031-9007 1079-7114
DOI:	10.1103/physrevlett.102.245005