Plasma Propagation Speed and Electron Temperature in Slow Electron Energy Non-thermal Atmospheric Pressure Indirect-Plasma Jet
Autor: | Han Sup Uhm, Eun Ha Choi, Guangsup Cho, Gook-Hee Han, Jirapong Sornsakdanuphap, Pradoong Suanpoot |
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Rok vydání: | 2015 |
Předmět: | |
Zdroj: | IEEE Transactions on Plasma Science. 43:2207-2211 |
ISSN: | 1939-9375 0093-3813 |
DOI: | 10.1109/tps.2015.2439058 |
Popis: | Space- and time-resolved discharge-images from a nonthermal atmospheric-pressure indirect-plasma jet have been observed using a high-speed single-frame camera to investigate the electron temperature. The propagation velocity of the indirect Ar-plasma along the plasma column has been shown to be on the order of $10^{\mathrm {\mathbf {4}}}$ m/s, and that corresponds to an ion acoustic velocity on the order of $10^{\mathrm {\mathbf {2}}}$ m/s. Plasma has been generated by varying input discharge voltages from 2.0 to 4.0 kV at a driving frequency of 40 kHz. Particularly, the average electron temperature in slow electron energy nonthermal atmospheric-pressure indirect-plasma jet has been found to be about 0.3 eV. |
Databáze: | OpenAIRE |
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