Electron Density Measurements in the Magnetically Confined Arc
- 1 February 1965
- journal article
- research article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 36 (2), 337-341
- https://doi.org/10.1063/1.1713990
Abstract
Three methods were used to obtain electron density as a function of radius in a magnetically confined, low‐pressure argon arc. The first utilized the phase shift of a reflected 35‐kMc/sec microwave, and the second determined density from the ion saturation current to a Langmuir probe. The third determination utilized the broadening of the H β line emitted by a small quantity of added hydrogen. Agreement among the three methods is satisfactory; the electron density at the axis of this discharge is of order 1014 cm−3, in agreement with results obtained by others for discharges of similar type.Keywords
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