Breakdown characteristics of cryogenic gaseous helium in uniform electric field and space charge modified non-uniform field

M. Hara, J. Suehiro, H. Matsumoto

研究成果: ジャーナルへの寄稿学術誌査読

7 被引用数 (Scopus)

抄録

D.c. breakdown characteristics of gaseous helium in uniform and non-uniform electric fields down to 4.2 K at atmospheric pressure have been investigated. Although helium is a nonelectronegative gas, a negative pulse corona is observed only near the normal boiling point due to the abrupt appearance of quasi-bubble state electrons. Positive ion space charge modifies the electric field distribution in the gap space considerably. The electric field strength on the non-corona electrode in the ion flow field is measured satisfactorily and analysed theoretically using a numerical electric field calculation technique. On the basis of experimental results, methods are proposed to give corona onset criteria and the breakdown voltage preceded by a positive glow corona.

本文言語英語
ページ(範囲)787-794
ページ数8
ジャーナルCryogenics
30
9
DOI
出版ステータス出版済み - 9月 1990

!!!All Science Journal Classification (ASJC) codes

  • 材料科学(全般)
  • 物理学および天文学(全般)

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