| MEŠKO, Marcel, Zdeněk BONAVENTURA, Petr VAŠINA, Vít KUDRLE, Antonín TÁLSKÝ, David TRUNEC, Zdeněk FRGALA and Jan JANČA. An experimental study of high power microwave pulsed discharge in nitrogen. Plasma Sources Science and Technology. Bristol: Institute of Physics Publishing, 2006, vol. 15, No 3, p. 574-581. ISSN 0963-0252. |
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@article{638605,
author = {Meško, Marcel and Bonaventura, Zdeněk and Vašina, Petr and Kudrle, Vít and Tálský, Antonín and Trunec, David and Frgala, Zdeněk and Janča, Jan},
article_location = {Bristol},
article_number = {3},
keywords = {microwave discharge; pulsed discharge; nitrogen},
language = {eng},
issn = {0963-0252},
journal = {Plasma Sources Science and Technology},
title = {An experimental study of high power microwave pulsed discharge in nitrogen},
url = {http://www.iop.org/EJ/abstract/0963-0252/15/3/037},
volume = {15},
year = {2006}
}
TY - JOUR
ID - 638605
AU - Meško, Marcel - Bonaventura, Zdeněk - Vašina, Petr - Kudrle, Vít - Tálský, Antonín - Trunec, David - Frgala, Zdeněk - Janča, Jan
PY - 2006
TI - An experimental study of high power microwave pulsed discharge in nitrogen
JF - Plasma Sources Science and Technology
VL - 15
IS - 3
SP - 574-581
EP - 574-581
PB - Institute of Physics Publishing
SN - 09630252
KW - microwave discharge
KW - pulsed discharge
KW - nitrogen
UR - http://www.iop.org/EJ/abstract/0963-0252/15/3/037
N2 - 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.
ER -
MEŠKO, Marcel, Zdeněk BONAVENTURA, Petr VAŠINA, Vít KUDRLE, Antonín TÁLSKÝ, David TRUNEC, Zdeněk FRGALA and Jan JANČA. An experimental study of high power microwave pulsed discharge in nitrogen. \textit{Plasma Sources Science and Technology}. Bristol: Institute of Physics Publishing, 2006, vol.~15, No~3, p.~574-581. ISSN~0963-0252.
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