Electric potential developed by single-pulse needle-water discharge

被引：4

作者：

Okumura, Takamasa ^{[1
]}

Zhou, Chaoyi ^{[2
]}

Kubo, Eijiro ^{[2
]}

Shimizu, Tetsuji ^{[3
]}

Nakajima, Tomoki ^{[1
]}

Sato, Takehiko ^{[1
]}

机构：

[1] Tohoku Univ, Inst Fluid Sci, Sendai, Miyagi 9800812, Japan

[2] Tohoku Univ, Dept Mech Engn, Sendai, Miyagi 9808579, Japan

[3] Natl Inst Adv Ind Sci & Technol, Elect & Photon Res Inst, Tsukuba, Ibaraki 3058568, Japan

来源：

APPLIED PHYSICS EXPRESS | 2018年 / 11卷 / 01期

关键词：

PLASMA MEDICINE;

D O I：

10.7567/APEX.11.016201

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

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 1mm 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 100mm 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 316mA. This estimation qualitatively agrees with a numerical calculation. (C) 2018 The Japan Society of Applied Physics

引用

页数：4

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