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Measurements of power dissipated in an atmospheric pressure plasma jet device with double plasma discharge ignition

Full text
Author(s):
do Nascimento, Fellype ; Petroski, Kleber A. ; Nishime, Thalita M. C. ; Kostov, Konstantin G.
Total Authors: 4
Document type: Journal article
Source: EUROPEAN PHYSICAL JOURNAL D; v. 78, n. 12, p. 17-pg., 2024-12-01.
Abstract

Atmospheric pressure plasma jets (APPJs) are versatile devices with numerous applications. This work focuses on APPJs generated at the tip of long, flexible tubes using the jet transfer technique. The plasma source consists of a primary discharge and a secondary discharge forming the plasma jet. Discharge power measurements were carried out in a way that it was possible to separate the contribution of the primary discharge from the total power dissipated by the plasma source. Both power and effective current were analyzed under different operating conditions. The results show that the variation in the primary discharge power is much lower than the power dissipated by the plasma jet. Additionally, the electrical characteristics of the plasma device were analyzed. Notable differences were observed between the negative and positive phases of the discharge, with a more resistive load in the negative one, which suggests that the electrical equivalent circuit model changes according to the voltage polarity.Graphical AbstractThe primary discharge spectra are not affected by differences in electrical characteristics of the discharges with the plasma jet on and off (AU)

FAPESP's process: 20/09481-5 - Applications of non-thermal atmospheric plasmas in Dentistry: from the bench to the clinic
Grantee:Fellype do Nascimento
Support Opportunities: Scholarships in Brazil - Post-Doctoral
FAPESP's process: 19/05856-7 - Use of low temperature atmospheric pressure plasma in dentistry: from laboratory bench to clinics
Grantee:Cristiane Yumi Koga Ito
Support Opportunities: Research Projects - Thematic Grants