PIC modeling of collisional skin depth in RF-driven atmospheric pressure plasmas

  • C. M. Roark
  • , J. Carlsson
  • , A. Hakim
  • , D. P. Karipides
  • , D. N. Smithe
  • , P. H. Stoltz

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Atmospheric pressure plasmas have application in plasma processing and plasma lighting. One common technique for creating these plasmas is to use RF to drive a discharge in a gas column. A main unexplained feature of these discharges is a radial contraction of the plasma, believed to depend in part on the depth to which the RF wave penetrates the gas column. We present collisional particle-in-cell (PIC) simulations of such a system, specifically looking at how the collisions modify the plasma skin depth for these parameters and geometries. We find the skin depth changes roughly 30 from 0.53 mm to 0.71 mm as the temperature increases from 0 to 500 eV for parameters relevant to atmospheric pressure plasmas in use today.

Original languageEnglish (US)
Title of host publicationRADIO FREQUENCY POWER IN PLASMAS
Subtitle of host publication17th Topical Conference on Radio Frequency Power in Plasmas
Pages487-490
Number of pages4
DOIs
StatePublished - 2007
Externally publishedYes
Event17th Topical Conference on Radio Frequency Power in Plasmas - Clearwater, FL, United States
Duration: May 7 2007May 9 2007

Publication series

NameAIP Conference Proceedings
Volume933
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Other

Other17th Topical Conference on Radio Frequency Power in Plasmas
Country/TerritoryUnited States
CityClearwater, FL
Period5/7/075/9/07

All Science Journal Classification (ASJC) codes

  • General Physics and Astronomy

Keywords

  • CoUisional
  • PIC
  • Plasma torches
  • Radio frequency

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