Bulletin of the American Physical Society
76th Annual Gaseous Electronics Conference
Volume 68, Number 9
Monday–Friday, October 9–13, 2023; Michigan League, Ann Arbor, Michigan
Session ET1: Atmospheric Pressure Plasmas I
8:00 AM–9:30 AM,
Tuesday, October 10, 2023
Room: Michigan League, Vandenberg
Chair: Mackenzie Meyer, University of Michigan
Abstract: ET1.00005 : Localized Distribution of Atomic Oxygen near Barrier Surface in Sub-atmospheric Pressure O2 Pulsed Barrier Discharge*
9:15 AM–9:30 AM
Presenter:
Yusuke Nakagawa
(Tokyo Metropolitan Univ)
Authors:
Yusuke Nakagawa
(Tokyo Metropolitan Univ)
Jion Ogaki
(Tokyo Metropolitan University)
Masaya Kobayashi
(Tokyo Metropolitan University)
Fumiyoshi Tochikubo
(Tokyo Metropolitan University)
In this study, we measured the behavior of atomic oxygen (O) in needle-to-sphere pulsed discharge in sub-atmospheric pressure oxygen, using TALIF spectroscopy. As the pressure dependence of atomic oxygen, the O production near the cathode took a maximum at 50 kPa, while the lifetime of O atom increased as the pressure was reduced. Consequently, the flux of atomic oxygen near the cathode was maximized at 50 kPa, where the flux was five times larger than that in atmospheric pressure. The specific production of atomic oxygen near the glass surface was observed in barrier discharge, whereas that at metal-to-metal discharge did not show the localized distribution near the cathode. In contrast, there was no strong discharge emission near the cathode in barrier discharge. This suggests that the specific O production near the barrier surface can be attributed to the relatively low-energy electrons which does not contribute to discharge emission.
*This study was supproted by JSPS KAKENHI Grant No. JP 22H01475.
Follow Us |
Engage
Become an APS Member |
My APS
Renew Membership |
Information for |
About APSThe American Physical Society (APS) is a non-profit membership organization working to advance the knowledge of physics. |
© 2024 American Physical Society
| All rights reserved | Terms of Use
| Contact Us
Headquarters
1 Physics Ellipse, College Park, MD 20740-3844
(301) 209-3200
Editorial Office
100 Motor Pkwy, Suite 110, Hauppauge, NY 11788
(631) 591-4000
Office of Public Affairs
529 14th St NW, Suite 1050, Washington, D.C. 20045-2001
(202) 662-8700