[20p-A32-1~11] 8.1 Plasma production and diagnostics

3:45 PM - 4:00 PM JST(6:45 AM - 7:00 AM UTC)

[20p-A32-9] Gas-Phase OH Radical Distribution Measurement at the Interface of Plasma Exposed High-Speed Water Column Flow Using Laser Induced Fluorescence

〇Kazuki Takeda¹, Shota Sasaki¹, Keisuke Takashima¹, Toshiro Kaneko¹ (1.Grad. Sch. of Eng., Tohoku Univ.)

Keywords:

Atmospheric-pressure plasma,Plasma in contact with liquid,Laser Induced Fluorescence

Atmospheric pressure plasmas in contact with liquid have been utilized as a source of reactive nitrogen and oxygen species (RONS). Although the plasma-liquid interface has been recognized as the key region to control the delivered RONS composition, the mechanism of plasma-liquid interaction is hardly understood.
In our previous work, we built a new experimental method using a plasma-exposed high-speed liquid flow (~ 10 m/s) system, and we tried to evaluate the liquid-phase OH radical kinetics. In order to elucidate the origin of it, we tried to perform the OH-LIF measurement to characterize the gas phase OH radical distribution.