Detailed Information on Publication Record
2006
An experimental study of high power microwave pulsed discharge in nitrogen
MEŠKO, Marcel, Zdeněk BONAVENTURA, Petr VAŠINA, Vít KUDRLE, Antonín TÁLSKÝ et. al.Basic information
Original name
An experimental study of high power microwave pulsed discharge in nitrogen
Name in Czech
Experimentální studie vysokovýkonového mikrovlnného pulzního výboje v dusíku
Authors
MEŠKO, Marcel (703 Slovakia), Zdeněk BONAVENTURA (203 Czech Republic, guarantor), Petr VAŠINA (203 Czech Republic), Vít KUDRLE (203 Czech Republic), Antonín TÁLSKÝ (203 Czech Republic), David TRUNEC (203 Czech Republic), Zdeněk FRGALA (203 Czech Republic) and Jan JANČA (203 Czech Republic)
Edition
Plasma Sources Science and Technology, Bristol, Institute of Physics Publishing, 2006, 0963-0252
Other information
Language
English
Type of outcome
Článek v odborném periodiku
Field of Study
10305 Fluids and plasma physics
Country of publisher
United Kingdom of Great Britain and Northern Ireland
Confidentiality degree
není předmětem státního či obchodního tajemství
References:
Impact factor
Impact factor: 2.346
RIV identification code
RIV/00216224:14310/06:00015753
Organization unit
Faculty of Science
UT WoS
000240655500037
Keywords in English
microwave discharge; pulsed discharge; nitrogen
Tags
International impact, Reviewed
Změněno: 6/6/2008 14:15, prof. Mgr. Vít Kudrle, Ph.D.
V originále
We investigated a plasma excited by high power pulsed microwaves (MWs) (pulse duration 2.5 mikrosecond repetition rate 400 Hz, peak power 100 kW, frequency 9.4 GHz) in nitrogen at reduced pressure (pressure range 10-2000 Pa) with the aim of a better understanding of such types of discharge. The construction of the experimental device suppresses the plasmawall interactions and therefore the volume processes are predominant. To obtain the temporal evolution of the electron density we used two MW interferometers at frequencies of 15 and 35 GHz with dielectric rod waveguides which gives them the capability of localized measurements. We estimated the effective collision frequency from the absorption of a measurement beam. Time resolved optical emission spectroscopy of the 1st negative system and the 2nd positive system was carried out, too. Due to a high power input the discharge dynamics was fast and the steady state was typically reached in 1 mikrosecond. We found that the effective collision frequency has the same temporal behaviour as the 2nd positive system of N2, including a characteristic maximum at the beginning of the pulse.
In Czech
We investigated a plasma excited by high power pulsed microwaves (MWs) (pulse duration 2.5 mikrosecond, repetition rate 400 Hz, peak power 100 kW, frequency 9.4 GHz) in nitrogen at reduced pressure (pressure range 10-2000 Pa) with the aim of a better understanding of such types of discharge. The construction of the experimental device suppresses the plasmawall interactions and therefore the volume processes are predominant. To obtain the temporal evolution of the electron density we used two MW interferometers at frequencies of 15 and 35 GHz with dielectric rod waveguides which gives them the capability of localized measurements. We estimated the effective collision frequency from the absorption of a measurement beam. Time resolved optical emission spectroscopy of the 1st negative system and the 2nd positive system was carried out, too. Due to a high power input the discharge dynamics was fast and the steady state was typically reached in 1 mikrosecond. We found that the effective collision frequency has the same temporal behaviour as the 2nd positive system of N2, including a characteristic maximum at the beginning of the pulse.
Links
| GA202/06/0776, research and development project |
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| MSM0021622411, plan (intention) |
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