Title :
Comparison between He/O2 and He/H2O atmospheric pressure cold plasmas
Author :
Mingzhe Rong ; Dingxin Liu ; Xiaohua Wang ; Bruggeman, P. ; Iza, F. ; Kong, M.G.
Author_Institution :
State Key Lab. of Electr. Insulation & Power Equip., Xi´an Jiaotong Univ., Xi´an, China
Abstract :
Atmospheric-pressure He/O2 and He/H2O plasmas have received growing attention in recent years, for they are easy to be kept cold and diffusive as well as capable of efficiently generating reactive radicals like O and OH. In this contribution we present the results of a comparative study of the chemistry of these two kinds of plasmas and their suitability for biomedical applications. An extensive literature review has been performed to create detailed up-to-date chemistry models of these He/O2 and He/ H2O discharges. In this study the concentration of O2 and H2O are kept below 1% as this is the regime preferred in most practical scenarios. Higher concentration of O2 (or H2O) leads to unstable and hotter discharges with lower concentration of relevant reactive species.
Keywords :
atmospheric pressure; discharges (electric); helium; plasma chemistry; plasma impurities; He; Penning processes; atmospheric pressure; biomedical applications; cold plasmas; electron density; electronegative discharge; helium discharge; impurity concentrations; momentum transfer collisions; Atmospheric-pressure plasmas; Dielectrics and electrical insulation; Electrons; Helium; Impurities; Laboratories; Plasma applications; Plasma chemistry; Plasma density; Water;
Conference_Titel :
Plasma Science, 2010 Abstracts IEEE International Conference on
Conference_Location :
Norfolk, VA
Print_ISBN :
978-1-4244-5474-7
Electronic_ISBN :
0730-9244
DOI :
10.1109/PLASMA.2010.5534151
