Hyperthermal hydrogen atoms in argon-hydrogen atmospheric pressure microplasma jet

Journal Article · Mon Jul 28 04:00:00 EDT 2008 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.2967016· OSTI ID:21124002

Oliveira, C; Souza Correa, J A; Gomes, M P; Sismanoglu, B N; Amorim, J ^[1]

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1. Departamento de Fisica, Instituto Tecnologico de Aeronautica, Comando-Geral de Tecnologia Aeroespacial, Pca Marechal Eduardo Gomes 50, Sao Jose dos Campos, Sao Paulo 12228-900 (Brazil)

An argon-hydrogen atmospheric pressure microplasma jet was constructed for the treatment of materials. The microplasma jet device operating at 50 W produced long plasma jet of 30 mm with gas temperatures measured, using OH emissions, from 1600 to 2600 K as a function of distance. Excitation temperature was found to be from 7000 to 10 000 K. Through the analysis of H{sub {alpha}} line broadening mechanisms, surprising hot hydrogen atoms H (n=3) were found with temperatures ranging from 12 000 to 19 600 K.

• OSTI ID: 21124002
• Journal Information: Applied Physics Letters, Journal Name: Applied Physics Letters Journal Issue: 4 Vol. 93; ISSN APPLAB; ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ARGON
ATMOSPHERIC PRESSURE
HYDROGEN
LINE BROADENING
PLASMA
PLASMA JETS
TEMPERATURE DEPENDENCE
TEMPERATURE RANGE OVER 4000 K
THERMODYNAMICS