Spectroscopic investigations of the properties of a plasma produced by a flashboard plasma source, commonly used in pulsed plasma experiments, are presented. The plasma is used to prefill a planar 0.4 s conduction time plasma opening switch (POS). A novel gas-doping technique and a secondary surface flashover plasma source are used to locally dope the plasma with gaseous and solid materials, respectively, allowing for spatially resolved measurements. The electron density, temperature, and plasma composition are determined from spectral line intensities and line profiles. Detailed collisional-radiative modeling is used to analyze the observed line intensities. The propagation velocity and divergence angle of various ions are determined from time-of-flight measurements and Doppler broadening of spectral lines, respectively. This allows for distinguishing the secondary plasma ejected from the POS electrodes from the plasma of the flashboard source.
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September 2000
Research Article|
September 01 2000
Spectroscopic investigations of a dielectric-surface-discharge plasma source
R. Arad;
R. Arad
Faculty of Physics, Weizmann Institute of Science, 76100 Rehovot, Israel
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K. Tsigutkin;
K. Tsigutkin
Faculty of Physics, Weizmann Institute of Science, 76100 Rehovot, Israel
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Yu. V. Ralchenko;
Yu. V. Ralchenko
Faculty of Physics, Weizmann Institute of Science, 76100 Rehovot, Israel
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Y. Maron
Y. Maron
Faculty of Physics, Weizmann Institute of Science, 76100 Rehovot, Israel
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Phys. Plasmas 7, 3797–3807 (2000)
Article history
Received:
January 17 2000
Accepted:
May 12 2000
Citation
R. Arad, K. Tsigutkin, Yu. V. Ralchenko, Y. Maron; Spectroscopic investigations of a dielectric-surface-discharge plasma source. Phys. Plasmas 1 September 2000; 7 (9): 3797–3807. https://doi.org/10.1063/1.1286801
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