Electric potential developed by single-pulse needle-water discharge

Takamasa Okumura, Chaoyi Zhou, Eijiro Kubo, Tetsuji Shimizu, Tomoki Nakajima, Takehiko Sato

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

The electric potential in water formed by atmospheric-pressure plasma was evaluated to understand the biological effects of charges in the plasma. A pulsed voltage was applied to a needle electrode at 1 mm from the surface of water in an insulating vessel, and a discharge was generated between the needle electrode and the water surface. The evolution of the potential in the water 100 mm from the discharge point was measured. A computational estimation using an equivalent circuit exhibited potential of 602 V at the discharge point when the discharge current was 316 mA. This estimation qualitatively agrees with a numerical calculation.

Original languageEnglish
Article number016201
JournalApplied Physics Express
Volume11
Issue number1
DOIs
Publication statusPublished - 2018 Jan

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)

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