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ID 29248
file
creator
Namba, Shinichi
Yashio, Noriyasu
Kozue, Kazuki
Nakamura, Keisuke
Sato, Kuninori
NDC
Physics
abstract
An arcjet discharge device with a rectangular converging and diverging nozzle was developed, which allowed us to optically observe high-density plasma inside the anode nozzle Spectroscopic observation along the plasma expansion axis was carried out to examine the characteristics of the arc plasma inside the nozzle Analyzing intense continuum and line emission spectra, we successfully obtained spatial variations in electron temperature and density. Moreover, we found that two-dimensional optical measurement is highly useful in visualizing the transition from atmospheric thermal plasma to a strongly nonequilibrium recombining plasma due to adiabatic expansion.
journal title
Japanese Journal of Applied Physics
volume
Volume 48
issue
Issue 11
date of issued
2009
publisher
Japan Society Applied Physics
issn
0021-4922
ncid
publisher doi
language
eng
nii type
Journal Article
HU type
Journal Articles
DCMI type
text
format
application/pdf
text version
author
rights
Copyright (c) 2009 The Japan Society of Applied Physics
relation url
department
Graduate School of Engineering