TY - JOUR
T1 - Measurements of electron density and electron temperature of arc discharge plasmas containing metallic vapors using laser Thomson scattering
AU - Tomita, Kentaro
AU - Yoshitake, Shinya
AU - Uchino, Kiichiro
AU - Takenaka, Daigo
AU - Toda, Hiroaki
AU - Hikita, Masayuki
AU - Suzuki, Katsumi
PY - 2014/1/1
Y1 - 2014/1/1
N2 -
SUMMARY Laser Thomson scattering (LTS) was applied to arc discharges generated in the atmosphere to measure electron density (n
e
) and electron temperature (T
e
). The electrode gap was 0.8 mm, and the electrode diameter was 1 mm. The applied voltage was 6 kV, the peak current was 600 A, and the decay time of the voltage and current was 25 μs. The spatiotemporal evolution of n
e
and T
e
was measured 10, 30, and 50 μs after discharge initiation. At these times, the obtained values of n
e
and T
e
were estimated to be in the ranges of (0.8 to 2.0) × 10
23
m
-3
and 1.0 to 2.2 eV, respectively. These values were consistent with those evaluated using Saha's thermodynamic equation at 1 atm. It was also found that the decay of the arc discharge produced using the tungsten-copper electrodes was much faster than that produced using the tungsten electrodes.
AB -
SUMMARY Laser Thomson scattering (LTS) was applied to arc discharges generated in the atmosphere to measure electron density (n
e
) and electron temperature (T
e
). The electrode gap was 0.8 mm, and the electrode diameter was 1 mm. The applied voltage was 6 kV, the peak current was 600 A, and the decay time of the voltage and current was 25 μs. The spatiotemporal evolution of n
e
and T
e
was measured 10, 30, and 50 μs after discharge initiation. At these times, the obtained values of n
e
and T
e
were estimated to be in the ranges of (0.8 to 2.0) × 10
23
m
-3
and 1.0 to 2.2 eV, respectively. These values were consistent with those evaluated using Saha's thermodynamic equation at 1 atm. It was also found that the decay of the arc discharge produced using the tungsten-copper electrodes was much faster than that produced using the tungsten electrodes.
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U2 - 10.1002/eej.22635
DO - 10.1002/eej.22635
M3 - Article
AN - SCOPUS:84902368571
SN - 0424-7760
VL - 188
SP - 1
EP - 8
JO - Electrical Engineering in Japan (English translation of Denki Gakkai Ronbunshi)
JF - Electrical Engineering in Japan (English translation of Denki Gakkai Ronbunshi)
IS - 4
ER -