Low-temperature, high-pressure plasma jets have an extensive use in plasma biology and plasma medicine, such as pathogen deactivation, wound disinfection, stopping of bleeding without damage of healthy tissue, acceleration of wound healing, control of bio-film proliferation, etc. In this work, a spectroscopic characterization of a typical plasma jet, operated in air at atmospheric pressure, is reported. Within the spectrum of wavelengths from 200 to 450 nm all remarkable emissions of N2 were monitored. Spectra of the N2 2nd positive system (C3Πu-B3Πg) emitted in air are the most convenient for plasma diagnostics, since they enable to determine electronic Te, rotational Tr and vibrational Tv temperatures by fitting the experimental spectra with the simulated ones. We used SPECAIR software for spectral simulation and obtained the best fit with all these temperatures about 3500K. The conclusion that all temperatures are equal, and its relatively high value, is consistent with the results of a previous work, where it was found that the experimentally determined electrical characteristic was consistent with the model of a thermal arc discharge, together with a highly collisional cathode sheet. © Published under licence by IOP Publishing Ltd.
Documento: | Conferencia |
Título: | Emission spectroscopy of an atmospheric pressure plasma jet operated with air at low frequency |
Autor: | Giuliani, L.; Gallego, J.L.; Minotti, F.; Kelly, H.; Grondona, D.; Herrera-Velazquez J.J.E.; Vargas-Blanco I.; Ad Astra Rocket Company; Instituto Tecnologico de Costa Rica; International Atomic Energy Agency (IAEA); Universidad Nacional de Costa Rica |
Filiación: | Instituto de Física Del Plasma (INFIP), Consejo Nacional de Investigaciones Cientificas y Técnicas (CONICET), Departamento de Física, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires (UBA), Argentina Ciudad Universitaria, Pabellón i, Buenos Aires, C1428EHA, Argentina |
Palabras clave: | Atmospheric pressure; Computer software; Diagnosis; Electric discharges; Emission spectroscopy; Fusion reactors; Plasma diagnostics; Plasma jets; Temperature; Atmospheric pressure plasma jets; Electrical characteristic; Experimental spectra; Low temperatures; Plasma medicines; Positive systems; Spectral simulations; Spectroscopic characterization; Atmospheric temperature |
Año: | 2015 |
Volumen: | 591 |
Número: | 1 |
DOI: | http://dx.doi.org/10.1088/1742-6596/591/1/012048 |
Título revista: | 15th Latin American Workshop on Plasma Physics, LAWPP 2014 and 21st IAEA TM on Research Using Small Fusion Devices, RUSFD 2014 |
Título revista abreviado: | J. Phys. Conf. Ser. |
ISSN: | 17426588 |
Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_17426588_v591_n1_p_Giuliani |