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Title: Anomalous Capacitive Sheath with Deep Radio Frequency Electric Field Penetration

Abstract

A novel nonlinear effect of anomalously deep penetration of an external radio-frequency electric field into a plasma is described. A self-consistent kinetic treatment reveals a transition region between the sheath and the plasma. Because of the electron velocity modulation in the sheath, bunches in the energetic electron density are formed in the transition region adjusted to the sheath. The width of the region is of order V(subscript T)/omega, where V(subscript T) is the electron thermal velocity, and w is frequency of the electric field. The presence of the electric field in the transition region results in a cooling of the energetic electrons and an additional heating of the cold electrons in comparison with the case when the transition region is neglected.

Authors:
Publication Date:
Research Org.:
Princeton Plasma Physics Lab., NJ (US)
Sponsoring Org.:
USDOE Office of Science (US)
OSTI Identifier:
793021
Report Number(s):
PPPL-3649
TRN: US0200885
DOE Contract Number:  
AC02-76CH03073
Resource Type:
Technical Report
Resource Relation:
Other Information: PBD: 18 Jan 2002
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; ELECTRIC FIELDS; ELECTRONS; HEATING; KINETICS; MODULATION; PLASMA; TAIL ELECTRONS; VELOCITY

Citation Formats

Igor D. Kaganovich. Anomalous Capacitive Sheath with Deep Radio Frequency Electric Field Penetration. United States: N. p., 2002. Web. doi:10.2172/793021.
Igor D. Kaganovich. Anomalous Capacitive Sheath with Deep Radio Frequency Electric Field Penetration. United States. doi:10.2172/793021.
Igor D. Kaganovich. Fri . "Anomalous Capacitive Sheath with Deep Radio Frequency Electric Field Penetration". United States. doi:10.2172/793021. https://www.osti.gov/servlets/purl/793021.
@article{osti_793021,
title = {Anomalous Capacitive Sheath with Deep Radio Frequency Electric Field Penetration},
author = {Igor D. Kaganovich},
abstractNote = {A novel nonlinear effect of anomalously deep penetration of an external radio-frequency electric field into a plasma is described. A self-consistent kinetic treatment reveals a transition region between the sheath and the plasma. Because of the electron velocity modulation in the sheath, bunches in the energetic electron density are formed in the transition region adjusted to the sheath. The width of the region is of order V(subscript T)/omega, where V(subscript T) is the electron thermal velocity, and w is frequency of the electric field. The presence of the electric field in the transition region results in a cooling of the energetic electrons and an additional heating of the cold electrons in comparison with the case when the transition region is neglected.},
doi = {10.2172/793021},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Fri Jan 18 00:00:00 EST 2002},
month = {Fri Jan 18 00:00:00 EST 2002}
}

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