Time-Resolved Measurements of the Parameters of Arc Cathode Plasmas in Vacuum

Plasma parameters of carbon arcs in vacuum have been measured with high temporal and spatial resolution (1 μs and 10 μm, respectively). Near the surface the electron temperature was ≤1 eV. It increased to values of about 10 eV for distances > 10 mm by anomalous heating due to ion sound turbulence...

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Bibliographic Details
Published in:IEEE transactions on plasma science 1985-10, Vol.13 (5), p.334-336
Main Authors: Ivanov, V. A., Juttner, B., Pursch, H.
Format: Article
Language:English
Subjects:
Cathodes
Electric discharges
Electrons
Exact sciences and technology
Physics
Physics of gases, plasmas and electric discharges
Physics of plasmas and electric discharges
Plasma density
Plasma measurements
Plasma temperature
Pollution measurement
Probes
Silicon
Spatial resolution
Vacuum arcs
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Summary:Plasma parameters of carbon arcs in vacuum have been measured with high temporal and spatial resolution (1 μs and 10 μm, respectively). Near the surface the electron temperature was ≤1 eV. It increased to values of about 10 eV for distances > 10 mm by anomalous heating due to ion sound turbulence. The average electron density varies with the distance r as r-2. Values of about 1025 m-3 have been found at r = 15 μm.
ISSN:0093-3813
1939-9375
DOI:10.1109/TPS.1985.4316432