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Abstract <p>The dependences of the breakdown voltage <i>U</i><sub>br</sub> on the parameter <i>p</i> × <i>d</i>—the product of the working gas pressure <i>p</i> and the interelectrode distance <i>d</i> (Paschen curve) in helium (<i>p</i> × <i>d</i> = 1.1–300 Torr cm), neon (<i>p</i> × <i>d</i> = 0.25–30 Torr cm) and argon (<i>p</i> × <i>d</i> = 0.09–570 Torr cm) were investigated. It is shown that the right branch of the Paschen curve (<i>p</i> × <i>d</i>) &gt; (<i>p</i> × <i>d</i>)<sub>min</sub> for all investigated gases demonstrates lower breakdown voltage values than the known results, which is associated with a change in the emission properties of cold cathodes operating in pure gases with the effect of impurities influence minimization on current generation processes.</p>

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Breakdown Characteristics in Direct Current Discharge in Noble Gases

  • 期刊论文

  • 发表日期：

    2025年12月1日

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  • P. A. Bokhan,
  • P. P. Gugin,
  • M. A. Lavrukhin,
  • G. V. Shevchenko,
  • D. E. Zakrevsky

摘要

Abstract

The dependences of the breakdown voltage Ubr on the parameter p × d—the product of the working gas pressure p and the interelectrode distance d (Paschen curve) in helium (p × d = 1.1–300 Torr cm), neon (p × d = 0.25–30 Torr cm) and argon (p × d = 0.09–570 Torr cm) were investigated. It is shown that the right branch of the Paschen curve (p × d) > (p × d)min for all investigated gases demonstrates lower breakdown voltage values than the known results, which is associated with a change in the emission properties of cold cathodes operating in pure gases with the effect of impurities influence minimization on current generation processes.