Scholarlink

Abstract <p>Some aspects determining the electrical strength of the accelerating gap in a fore-vacuum-pressure plasma-cathode electron beam source utilizing helium and argon as the working gas were explored. Penetration of plasma into the accelerating gap is the cause of breakdown. We find that gap breakdown occurs at larger emission hole diameter and at higher plasma density in helium than in argon. The greater stability of the plasma boundary in helium is explained by the observed greater anode potential drop and consequently greater sheath thickness.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

On the Electrical Strength of the Accelerating Gap in a Forevacuum Plasma Electron Source

  • 期刊论文

  • 发表日期：

    2026年1月1日

查看全文
  • V. A. Burdovitsin,
  • L. J. Ngon A Kiki,
  • E. M. Oks,
  • F. A. Sukhovolsky

摘要

Abstract

Some aspects determining the electrical strength of the accelerating gap in a fore-vacuum-pressure plasma-cathode electron beam source utilizing helium and argon as the working gas were explored. Penetration of plasma into the accelerating gap is the cause of breakdown. We find that gap breakdown occurs at larger emission hole diameter and at higher plasma density in helium than in argon. The greater stability of the plasma boundary in helium is explained by the observed greater anode potential drop and consequently greater sheath thickness.