new microwave plasma source in water a.m. barkhudarov, i.a. kossyi, m.a. misakyan prokhorov general...
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NEW MICROWAVE NEW MICROWAVE PLASMA SOURCE IN PLASMA SOURCE IN WATERWATER
A.M. Barkhudarov, I.A. Kossyi, M.A. Misakyan
Prokhorov General Physics Institute of RAS, Moscow, Russia
““Resonance” type plasma Resonance” type plasma sourcesource
Fig.1. Schematic of coaxial microwave plasmatron
1-magnetron; 2-outer electrode; 3-quartz tube; 4-gas-discharge near-the-surface plasma layer; 5-inner electrode – rod; 6-wall of reactor chamber
N.K.Berezhetskaya, V.A.Kop’ev, I.A.Kossyi M.A.Misakyan, I.M.Taktakishvili,S.Temchin,and Y.D.Lee Eur.Phys.J.Appl.Phys. 42,327–337(2008
1 – magnetron2 – magnetic loop3 – coaxial outer electrode4 – nozzle;5 – plasma torch6 – inner electrode 7 – working gas8 – rectangular cavity9 – copper rods (basket)
Microwave torch scheme
Influence of the outer electrode
length on the form and type
of the microwave
torch
MW Plasma sources for MW Plasma sources for several applications several applications
Scheme of the “Self-Clear up” Scheme of the “Self-Clear up” phenomenon for phenomenon for
V.Yu. Knyazev, I.A.Kossyi, N.i.Malikh, E.S.Yampolskii ZTP ( Russian) 2003, V.73, N.11
PLASMA PLASMA SOURCE SOURCE DIAGRAMDIAGRAM
1-Organic glass cylindrical tube, 2-end flanges, 3-magnetron (N=850 W, f=2.45 GHz), 4-inner electrode, 5-outer electrode, 6-quartz tube around the inner electrode, 7-liquid (water),8-gas inlet/outlet, 9-gas babbles, 10-plasma jet, 11- water inlet/outlet.
MW Plasma source working MW Plasma source working in water in water
Plasma source emission Plasma source emission spectrum spectrum
300 350 400 450 500 550 600 650 700 750 800 850
0
20000
40000
60000
Inte
nsity
(a.
u)
Wavelength (nm)
Ar
77
2,3
nm
A
r 7
63
,5 n
m
Na
58
8,9
nm
Plasma source emission Plasma source emission spectrumspectrum
400 600 8000
20000
40000
60000
Inte
nsity (
a.u
.)
Wavelength (nm)
Thank you for your Thank you for your attention.attention.