Diffuse alpha-mode atmospheric pressure radio-frequency discharge in neon

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Authors

NAVRÁTIL Zdeněk DOSOUDILOVÁ Lenka JOSEPSON Raavo DVOŘÁK Pavel TRUNEC David

Year of publication 2014
Type Article in Periodical
Magazine / Source PLASMA SOURCES SCIENCE & TECHNOLOGY
MU Faculty or unit

Faculty of Science

Citation
Web http://iopscience.iop.org/0963-0252/23/4/042001/pdf/0963-0252_23_4_042001.pdf
Doi http://dx.doi.org/10.1088/0963-0252/23/4/042001
Field Plasma physics
Keywords atmospheric-pressure plasmas; neon; helium; radio frequency capacitive discharge
Description In this work, a radio-frequency (RF) atmospheric pressure glow discharge burning in neon between planar metal electrodes is achieved for the first time. The RF discharge can operate in two stable modes: in a diffuse alpha-mode with uniformly covered electrode surfaces and in a constricted gama-mode. Similarities are revealed when the discharge is compared against the RF atmospheric pressure glow discharge in helium, namely both discharges show a discontinuity and a hysteresis in the current–voltage characteristic at the mode transition; the spatio-temporal profiles of the light emission in the alpha-mode from neon, helium and atomic oxygen are also similar.
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