Abstract
Laser Thomson scattering (LTS) method has been applied to measure two dimensional distributions of electron density (ne) and electron temperature (Te) of a pulsed discharge in Ne gas at a pressure of 400 Torr. Such a discharge was produced with good reproducibility by using a set of electrodes composed of a needle and a hemisphere with a spacing gap of 0.5 mm. The values of ne and Te at t = 25 ns after the start of the discharge and at the center of the discharge were evaluated to be 4.6 × 1022 m-3 and 1.0 eV, respectively. Based on the observed signal intensity and noise components, signal-to-noise ratios were examined and the way to apply present diagnostic system to the discharge plasma with an electron density as low as 1018 m-3 was discussed.
| Original language | English |
|---|---|
| Article number | C02057 |
| Journal | Journal of Instrumentation |
| Volume | 7 |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - Feb 1 2012 |
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All Science Journal Classification (ASJC) codes
- Instrumentation
- Mathematical Physics
Cite this
Two-dimensional Thomson scattering diagnostics of pulsed discharges produced at atmospheric pressure. / Tomita, Kentaro; Bolouki, N.; Shirozono, H.; Yamagata, Yukihiko; Uchino, Kiichiro; Takaki, K.
In: Journal of Instrumentation, Vol. 7, No. 2, C02057, 01.02.2012.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Two-dimensional Thomson scattering diagnostics of pulsed discharges produced at atmospheric pressure
AU - Tomita, Kentaro
AU - Bolouki, N.
AU - Shirozono, H.
AU - Yamagata, Yukihiko
AU - Uchino, Kiichiro
AU - Takaki, K.
PY - 2012/2/1
Y1 - 2012/2/1
N2 - Laser Thomson scattering (LTS) method has been applied to measure two dimensional distributions of electron density (ne) and electron temperature (Te) of a pulsed discharge in Ne gas at a pressure of 400 Torr. Such a discharge was produced with good reproducibility by using a set of electrodes composed of a needle and a hemisphere with a spacing gap of 0.5 mm. The values of ne and Te at t = 25 ns after the start of the discharge and at the center of the discharge were evaluated to be 4.6 × 1022 m-3 and 1.0 eV, respectively. Based on the observed signal intensity and noise components, signal-to-noise ratios were examined and the way to apply present diagnostic system to the discharge plasma with an electron density as low as 1018 m-3 was discussed.
AB - Laser Thomson scattering (LTS) method has been applied to measure two dimensional distributions of electron density (ne) and electron temperature (Te) of a pulsed discharge in Ne gas at a pressure of 400 Torr. Such a discharge was produced with good reproducibility by using a set of electrodes composed of a needle and a hemisphere with a spacing gap of 0.5 mm. The values of ne and Te at t = 25 ns after the start of the discharge and at the center of the discharge were evaluated to be 4.6 × 1022 m-3 and 1.0 eV, respectively. Based on the observed signal intensity and noise components, signal-to-noise ratios were examined and the way to apply present diagnostic system to the discharge plasma with an electron density as low as 1018 m-3 was discussed.
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U2 - 10.1088/1748-0221/7/02/C02057
DO - 10.1088/1748-0221/7/02/C02057
M3 - Article
VL - 7
JO - Journal of Instrumentation
JF - Journal of Instrumentation
SN - 1748-0221
IS - 2
M1 - C02057
ER -