Study of a helium glow-discharge with magnesium cathode by laser-induced fluorescence
The density profiles of Mg atoms and Mg ions are investigated in a steady helium glow discharge with magnesium cathode by means of laser induced fluorescence in the UV. The atomic profiles along the axis show a maximum a few millimetres away from the cathode, and the ionic profiles have their peak in the negative glow. The radial profiles confirm the homogeneity of the current density. Drift velocities of Mg(+) ions in the "Glimmsaum" are measured by the Doppler-effect, and electric field strengths are estimated using the mobility values.
Bibliographic Reference: Article: Proceedings of the 10th International Symposium on Plasma Chemistry, Vol. 2 (1991) 2.1-66, pp. 1-6
Record Number: 199210224 / Last updated on: 1994-12-02
Original language: en
Available languages: en