Optical Emission Spectroscopy of H \mathrm {\gamma } , H \mathrm {\alpha } , and H \mathrm {\beta } in a Glow Discharge Mixture of Ar/H2.

Autor: Torres, Juana, Reyes, Pedro Guillermo, Torres, Cesar, Martinez, Horacio, Vergara, Josefina
Předmět:
Zdroj: IEEE Transactions on Plasma Science; Mar2015 Part 2, Vol. 43 Issue 3, p846-850, 5p
Abstrakt: In this paper, the addition of Ar to H2 is experimentally investigated. This paper primarily aims to observe the effects that this addition has on the intensity of hydrogen emission lines in a glow discharge mixture. The total pressure was 3 torr, at a power level of 3.9 W. Optical emission spectroscopy was used for plasma characterization, and the principal species observed were H \gamma (434 nm), H \vphantom {RRR{\beta }} (486.1 nm), H \alpha (656.3 nm), and H2 (603.1 nm), and Ar I (750.5 nm), Ar I (763.5 nm), and Ar I (811.6 nm). The electron temperature and ion density were determined by a double Langmuir probe. The electron temperature was found to be in the range of 2.5–6.5 eV, and the ion concentration was on the order of 10^9 cm ^-3 . [ABSTRACT FROM PUBLISHER]
Databáze: Complementary Index