On the Ar I 419.8 nm/751.5 nm (3p₅/2p₅) line intensity ratio for electric field measurement in dielectric barrier discharge in argon at atmospheric pressure

Plasma Sources Science and Technology, Год журнала: 2025, Номер 34(1), С. 015013 - 015013

Опубликована: Янв. 1, 2025

Abstract Ar I 419.8 nm/751.5 nm line intensity ratio is suggested as a measure of the electric field in atmospheric pressure dielectric barrier discharges (DBDs) argon. Using electron distribution function calculated from Boltzmann equation, impact excitation cross sections, quenching coefficients and other atomic data, theoretical dependencies several ratios constructed 3p 5 4p 5p argon lines on were calculated. Among them, at (1s 4 − 3 p Paschen notation) to 751.5 2p ) was found be sensitive both theory experiment. The applied study an volume DBD pure with sinusoidal voltage excitation. spatiotemporal light emissions measured using time-correlated single photon counting technique high temporal (180 ps) spatial (25 µ m) resolution. emission indicated region propagating cathode-directed streamer due energy (14.58 eV) short effective lifetime (150 level. Several sections examined interpret ratio. calculation based combination (Zatsarinny 2014) section (Boffard 2007) for levels, strengths reaching 110–120 Td head. assumptions limitations this approach, well its instrumentation requirements, are discussed.

Язык: Английский

High-energy-level electron injection in ZnWO4/ZnO photocatalysts for efficient methane-to-methanol conversion

Fuel, Год журнала: 2025, Номер 396, С. 135297 - 135297

Опубликована: Апрель 8, 2025

Язык: Английский