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
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