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Title
Japanese: 
English:Development and measurement of a gas temperature controllable atmospheric-pressure plasma jet system for plasma bio research 
Author
Japanese: 吉村信次, 林珂任, 菊地航行, 榎本純, 後藤基志, 赤塚洋.  
English: Shinji Yoshimura, Keren Lin, Wataru Kikuchi, Jun Enomoto, Motoshi Goto, Hiroshi Akatsuka.  
Language English 
Journal/Book name
Japanese: 
English:Bulletin of the American Physical Society 
Volume, Number, Page        
Published date Sept. 30, 2024 
Publisher
Japanese: 
English:American Physical Society 
Conference name
Japanese: 
English:77th Annual Gaseous Electronics Conference 
Conference site
Japanese:サンジエゴ 
English:San Diego 
Official URL https://meetings.aps.org/Meeting/GEC24/Session/HT4.109
 
Abstract In this study, a gas temperature controllable atmospheric-pressure plasma jet (APPJ) system was developed. A quartz tube with a diameter of 10 mm was used to produce a relatively large-sized plume. A special electrode layout, with a ground electrode wrapped outside insulator tape and two floating electrodes, was applied to facilitate easier plasma ignition and enhance the stability of the plasma plume. To make the system applicable to biological tissues, a Peltier unit was employed to decrease the gas temperature. Power dissipation and optical emission spectroscopy (OES) measurements were conducted to assess the performance of the developed APPJ system. The results showed that the inclusion of a floating electrode between the powered and grounded electrodes increased the power dissipation of the plasma, resulting in a brighter plasma bulk region. A floating electrode near the nozzle was found to help the plasma plume extend beyond the nozzle. Additionally, it improved the length of the jets and produced more concentrated jets.

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