Abstract
Properties of electrical breakdown voltage in a mixed gas are investigated based on Townsend criterion. The breakdown temperature Tb and voltage Vb are obtained in terms of the gas mixture ratio χ. As an example, we investigate electrical breakdown properties in neon gas mixed with xenon. It is shown that the breakdown voltage decreases, reaches the minimum value at χ=0.02 and then increases again, as the mixture ratio χ increases from zero to unity. A preliminary experiment of AC-plasma display panel (PDP) is carried out for neon gas mixed with a few percent of xenon to verify some of the theoretical models. The experimental data agree qualitatively well with theoretical predictions.
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