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
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页数：4
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