Spatially Resolved Spectroscopic Study of Arcjet Helium Plasma Expanding through a Rectangular Converging and Diverging Nozzle
Japanese Journal of Applied Physics Volume 48 Issue 11
published_at 2009
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| File | |
| Title ( eng ) |
Spatially Resolved Spectroscopic Study of Arcjet Helium Plasma Expanding through a Rectangular Converging and Diverging Nozzle
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| Creator |
Namba Shinichi
Yashio Noriyasu
Kozue Kazuki
Nakamura Keisuke
Sato Kuninori
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| Source Title |
Japanese Journal of Applied Physics
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| Volume | 48 |
| Issue | 11 |
| 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.
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| NDC |
Physics [ 420 ]
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| Language |
eng
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| Resource Type | journal article |
| Publisher |
Japan Society Applied Physics
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| Date of Issued | 2009 |
| Rights |
Copyright (c) 2009 The Japan Society of Applied Physics
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| Publish Type | Author’s Original |
| Access Rights | open access |
| Source Identifier |
[ISSN] 0021-4922
[DOI] 10.1143/JJAP.48.116005
[NCID] AA12295836
[DOI] http://dx.doi.org/10.1143/JJAP.48.116005
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