Electron and metastable kinetics in the nitrogen afterglow

• Tipo: Artigo em Revista Científica Internacional
• Data: 2003

Autores

V. Guerra (Autor) Outra; Paulo Araújo Sá (Autor) FEUP; J. Loureiro (Autor) Outra

Revista

A Revista está pendente de validação pelos Serviços Administrativos.

Título: PLASMA SOURCES SCIENCE & TECHNOLOGY

Vol. 12 Nº 4

Páginas: S8-S15

ISSN: 0963-0252

Indexação

ISI Web of Knowledge - 30 Citações

ISI Web of Science

Scopus - 39 Citações

Classificação Científica

FOS: Ciências exactas e naturais

Outras Informações

ID Authenticus: P-000-EQM

DOI: 10.1088/0963-0252/12/4/314

Abstract (EN): This work presents a theoretical study of the time-relaxation of both the electron energy distribution function and the populations of the different species of interest in the nitrogen afterglow of a omega/2pi = 433 MHz discharge at p = 3.3 Torr, in a tube with radius R = 1.9 cm. It is shown that collisions of highly excited N-2(X (1)Sigma(g)(+), v greater than or similar to 35) molecules with N(S-4) atoms may be in the origin of the observed pronounced maxima for the concentrations of various species, including electrons, occurring downstream from the discharge after a dark zone. Slow electrons remain for very long times in the post-discharge (at least up to t similar to 10(-3)-10(-2) s), and the strong coupling between the electron and metastable kinetics is clearly pointed out.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 8