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Surface waves on the positive column of a gas discharge

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Summary

The propagation of surface waves along a mercury vapour discharge is investigated theoretically and experimentally. The classical solution of the electromagnetic problem, involving Bessel functions, is compared with a numerical solution. A density profile is used to obtain the theoretical curve that fits measured values best. A surface wave launching device with a minimum of direct radiation is applied, giving a standing wave of pure circular symmetry along the discharge tube. There is no metallic screening tube.

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van Veenendaal, W. Surface waves on the positive column of a gas discharge. Appl. Sci. Res. 18, 446–457 (1968). https://doi.org/10.1007/BF00382365

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  • DOI: https://doi.org/10.1007/BF00382365

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