Electric potential developed by single-pulse needle-water discharge

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

doi:10.7567/APEX.11.016201

Electric potential developed by single-pulse needle-water discharge

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

Nanoscale Flow Research Division

Research output: Contribution to journal › Article › peer-review

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 language	English
Article number	016201
Journal	Applied Physics Express
Volume	11
Issue number	1
DOIs	https://doi.org/10.7567/APEX.11.016201
Publication status	Published - 2018 Jan

ASJC Scopus subject areas

Engineering(all)
Physics and Astronomy(all)

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title = "Electric potential developed by single-pulse needle-water discharge",

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.",

author = "Takamasa Okumura and Chaoyi Zhou and Eijiro Kubo and Tetsuji Shimizu and Tomoki Nakajima and Takehiko Sato",

note = "Funding Information: Acknowledgments This study was supported by JSPS KAKENHI Grant Number 16H02311 and the Collaborative Research Project of the Institute of Fluid Science, Tohoku University, Japan. Publisher Copyright: {\textcopyright} 2018 The Japan Society of Applied Physics.",

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AU - Zhou, Chaoyi

AU - Kubo, Eijiro

AU - Shimizu, Tetsuji

AU - Nakajima, Tomoki

AU - Sato, Takehiko

N1 - Funding Information: Acknowledgments This study was supported by JSPS KAKENHI Grant Number 16H02311 and the Collaborative Research Project of the Institute of Fluid Science, Tohoku University, Japan. Publisher Copyright: © 2018 The Japan Society of Applied Physics.

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N2 - 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.

AB - 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.

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Electric potential developed by single-pulse needle-water discharge

Abstract

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