AVS 65th International Symposium & Exhibition
    Plasma Science and Technology Division Tuesday Sessions
       Session PS+PB-TuM

Paper PS+PB-TuM4
Electron Temperature And Plasma Density Of Ar Plasma In Atmospheric Pressure Micro-DBD

Tuesday, October 23, 2018, 9:00 am, Room 104C

Session: Plasma Medicine
Presenter: Pradoong Suanpoot, Maejo University Phrae Campus, Thailand
Authors: P. Suanpoot, Maejo University Phrae Campus, Thailand
J. Sornsakdanuphap, Maejo University Phrae Campus, Thailand
B. Ghimire, Plasma Bioscience Research Center, Republic of Korea
Y.J. Hong, Plasma Bioscience Research Center, Republic of Korea
G. Cho, Charged Particle Beam and Plasma Laboratory, Republic of Korea
E.H. Choi, Plasma Bioscience Research Center, Republic of Korea
Correspondent: Click to Email

A model based on plasma propagation velocity has been recently developed to estimate the electron temperature (Te) of atmospheric pressure μ-DBD plasma. In this work, we have extended this model to calculate Te for plasma generated with Ar gas. Plasma has been generated by input discharge voltage of 2.7 kV at driving frequency of ≈ 45 kHz. A high-speed single-frame intensified charged coupled device (ICCD) has been used to observe the space and time-resolved discharge images and estimate the value of plasma propagation velocity (ug). The value of ug for Ar plasma has been obtained in the range of 6.2´103 m/s. The electron temperature has been calculated for this plasma. The average electron temperature has been found to be about 1.18 eV and the average plasma density has been found to be about 3.62×1014 cm-3 for Ar plasma. Our results obtained with modified convective-wave packet model can be a new contribution to plasma medicine.

Keywords: Atmospheric-pressure μ-DBD plasma, Ar plasma, plasma propagation speed, electron temperature, plasma density