Test of Blanc's law for negative ion mobility in mixtures of SF6with N2, O2and air
- 1 October 2003
- journal article
- Published by IOP Publishing in Journal of Physics D: Applied Physics
- Vol. 36 (20) , 2510-2514
- https://doi.org/10.1088/0022-3727/36/20/012
Abstract
We have measured the mobility of negative ion species drifting in mixtures of SF6 with N2, O2 and air. The pulsed Townsend experiment was used for this purpose. The conditions of the experiment, high pressures and low values of the reduced electric field, E/N, ensured that the majority species drifting in the gap was , to which the present mobilities are ascribed. The extrapolated, zero field mobilities for several mixture compositions were used to test them successfully with Blanc's law. Moreover, the measured zero field mobilities in air could also be explained in terms of the measured mobilities for this ionic species in N2 and O2.Keywords
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