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1.3 PHYSICAL SCIENCES, Fluids and plasma physics
This work provides an insight into the generation of excited nitrogen species by allowing noble gases to interact both with one another and ambient air. He and Ar were utilized to generate the optimum selectivity process to create reactive nitrogen species. An optimum setting for the generation of excited molecular nitrogen species, based on their excited energy levels, was obtained when using a mixture of Ar-He at a ratio of 10:1. At that point, when a voltage of 27 kV is applied to the system, it reached the maximum efficiency for selectivity processes to occur which allowed for a greater non-radiative transfer of energy through the mixture of noble gas atoms and into the molecular nitrogen present in ambient air.
Scally, L, Lalor, J, Gulan, M, Cullen, PJ, Milosavljević, V. Spectroscopic study of excited molecular nitrogen generation due to interactions of metastable noble gas atoms. Plasma Process Polym. 2018;e1800018, DOI: 10.1002/ppap.201800018