Year: 2025
Type: article
Abstract: The characteristics of nitric oxide (NO) production in a kHz pulsed atmospheric pressure Ar plasma jet, operated in ambient air, are explored by measuring the absolute density n gnd of the ground state NO ( X 2 Π ) using laser-induced fluorescence, and the emission of the excited state NO ( A 2 Σ + ) using optical emission spectroscopy. The quenching rates of NO ( A 2 Σ + ) are determined and the rate constants by air and Ar are evaluated as k q , air = 4.7 ( ± 0.2 ) × 10 − 17 m 3 s − 1 and k q , Ar = 1.4 × 10 − 19 m 3 s − 1 . The time-resolved NO measurement is carried out within one discharge cycle. It is found that NO generation shows fast rise accompanied by the propagation of the plasma ionization wave and a constant n gnd remains in the afterglow time.
Authors: Shuai Zhao, Robin van de Wege, Ana Sobota
Institution: Eindhoven University of Technology
Language: English
Subfield: Radiology, Nuclear Medicine and Imaging
Field: Medicine
Domain: Health Sciences
Open Access status: hybrid
Estimated APC paid: $3,325
Award: G7741880739
OpenAlex ID: W4409354423