Breakdown voltages of cryogenic gaseous helium and in liquid helium

Toshinobu Shigematsu, Hiroharu Kawasaki, Bunji Ono, Tatsuya Kawae

研究成果: Contribution to journalConference article査読


As practical applications of superconductivity have been made in electric power engineering, the breakdown voltage superconductor coolants, such as liquid helium or supercritical helium, have been needed intensively. Furthermore, in our discharge experiment in liquid helium to search for a novel carbon nanotube structure, it was predicted that the breakdown voltage was much higher. So, using the metal spherical electrodes, d.c. breakdown voltages in 4.2K gaseous helium (just above the liquid helium) and in liquid helium have been measured. As a result of the experiment, it was observed that the value is several times larger. Moreover, it found that there was no difference in the discharge phenomenon before and after the superfluid transition temperature.

ジャーナルJournal of Physics: Conference Series
出版ステータス出版済み - 4 19 2021
イベント10th Asian Conference on Applied Superconductivity and Cryogenics, ACASC 2020, 2nd International Cryogenic Materials Conference in Asia, Asian-ICMC 2020 and CSSJ Joint Conference - Okinawa, 日本
継続期間: 1 6 20201 9 2020

All Science Journal Classification (ASJC) codes

  • 物理学および天文学(全般)


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