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Structural Bifurcation of Microwave Helium Jet Discharge at Atmospheric Pressure

Shuichi TAKAMURA, Masakazu KITOH, Tadasuke SOGA, Hiroyoshi TAKASHIMA, Yuji NISHINO, Shinji HAYAKAWA, Yusuke BAN, Tsubasa YUHKI, Masashi KANDO¹⁾ and Noriyasu OHNO²⁾

Department of Electrical and Electronics Engineering, Faculty of Engineering, Aichi Institute of Technology,Toyota 470-0392, Japan

1)

Graduate School of Electronic Science and Technology, Shizuoka University, Hamamatsu 432-8011, Japan

2)

EcoTopia Science Institute, Nagoya University, Nagoya 464-8603, Japan

(Received 9 January 2008 / Accepted 4 February 2008 / Published 28 February 2008)

Abstract

Structural bifurcation of microwave-sustained jet discharge at atmospheric gas pressure was found to produce a stable helium plasma jet, which may open the possibility of a new type of high-flux test plasma beam for plasma-wall interactions in fusion devices. The fundamental discharge properties are presented including hysteresis characteristics, imaging of discharge emissive structure, and stable ignition parameter area.

Copyright (c) 2008 The Japan Society of Plasma Science and Nuclear Fusion Research

Keywords

atmospheric-pressure plasma, structural bifurcation, microwave-sustained plasma jet, helium plasma torch

DOI: 10.1585/pfr.3.012

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References

• [1] B.de Groot, R.S. Al, R. Engeln et al., Fusion Eng. Des. 82, 1861 (2007).
• [2] M. Moisan, Z. Zakrzewski and J.C. Rostaing, Plasma Sources Sci. Technol. 10, 387 (2001).

This paper may be cited as follows:

Shuichi TAKAMURA, Masakazu KITOH, Tadasuke SOGA, Hiroyoshi TAKASHIMA, Yuji NISHINO, Shinji HAYAKAWA, Yusuke BAN, Tsubasa YUHKI, Masashi KANDO and Noriyasu OHNO, Plasma Fusion Res. 3, 012 (2008).