[11a-E204-1~9] 8.5 Plasma phenomena, emerging area of plasmas and their new applications

9:30 AM - 9:45 AM JST(12:30 AM - 12:45 AM UTC)Presentation by Applicant for JSAP Young Scientists Presentation Award

[11a-E204-3] Optical Measurement of Reactive Species in Helium Plasma in Contact with Liquids

〇(M1)Takashi Ookawahara¹, Siqi Deng¹, Kazuki Takeda¹, Xiao Yuan¹, Kalyani Barman¹, Shota Sasaki¹, Toshiro Kaneko¹ (1.Grad. Sch. of Eng., Tohoku Univ.)

Keywords:

Atmospheric-pressure plasma,Plasma in contact with liquid,Reactive nitrogen species

Atmospheric-pressure plasma in contact with liquids is useful as a means of supplying reactive oxygen and nitrogen species (RONS) generated by plasma into the liquid phase. However, the mechanisms of generation and transport of reactive species across the plasma–liquid interface have not yet been fully elucidated. Therefore, we attempted to measure gas-phase species in a high-speed liquid-flow plasma system. In this presentation, we report the results of gas-phase species measurements under various plasma conditions using optical emission spectroscopy (OES), laser-induced fluorescence (LIF), and related techniques.