Journal article
Atmospheric pressure radio frequency glow discharges in argon: effects of external matching circuit parameters
Plasma sources science & technology, v 17(3), p035015
01 Aug 2008
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
Numerical simulations of radio frequency atmospheric pressure argon glow discharges were performed using a one-dimensional hybrid model. The discharge simulations were carried out for a parallel plate electrode configuration with an inter-electrode gap of 1.0 mm together with an external matching circuit. The external matching circuit parameters were found to have significant effect on the discharge characteristics. The results indicate that the discharge can operate at either the alpha or gamma mode depending on the matching circuit parameters. The two modes of operation were found to be distinctly different. The predicted Ar* density was considered to provide qualitatively the visual appearance of the alpha or gamma mode discharge. The alpha mode was found to have a luminous region in the center of the discharge. On the other hand, the gamma mode had luminous regions very close to the electrodes which were followed by alternating dark and bright regions. The appearance of the simulated gamma mode was found to resemble that of an atmospheric pressure direct current glow discharge. The predicted gas temperature indicated the gamma mode to have higher gas temperature compared with the a mode.
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Details
- Title
- Atmospheric pressure radio frequency glow discharges in argon: effects of external matching circuit parameters
- Creators
- Tanvir Farouk - Drexel Univ, Dept Mech Engn & Mech, Philadelphia, PA 19104 USABakhtier Farouk - Drexel UniversityAlexander Gutsol - Drexel Univ, Dept Mech Engn & Mech, Philadelphia, PA 19104 USAAlexander Fridman - Drexel University
- Publication Details
- Plasma sources science & technology, v 17(3), p035015
- Publisher
- Iop Publishing Ltd
- Number of pages
- 15
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Mechanical Engineering and Mechanics
- Web of Science ID
- WOS:000258144500016
- Scopus ID
- 2-s2.0-51849145624
- Other Identifier
- 991019168383404721
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- Web of Science research areas
- Physics, Fluids & Plasmas