The Stark width and shift of the hydrogen H$\alpha$ line

S Büscher (1) , Th Wrubel (1) , Sandrine Ferri (1) , H-J Kunze (1)

1 RUB - Ruhr University Bochum = Ruhr-Universität Bochum

Measurements of line profiles of the hydrogen Hα transition from a well diagnosed gas-liner pinch are reported. The discharge is diagnosed using Thomson scattering and simultaneous spectroscopic measurements are performed giving the plasma parameters 0.5×1018 cm-3≤ne≤2.5×1018 cm-3 and 6 eV≤kBTe≤10.5 eV. The Stark width and shift are determined and compared to a selected set of experimental and theoretical data. The difference between the present results and former data, which were measured with the same device, is critically discussed.

Domaines: Physique des plasmas [physics.plasm-ph]

S Büscher, Th Wrubel, Sandrine Ferri, H-J Kunze. The Stark width and shift of the hydrogen H$\alpha$ line. Journal of Physics B: Atomic, Molecular and Optical Physics, 2002, 35 (13), pp.2889-2897. ⟨10.1088/0953-4075/35/13/304⟩. ⟨hal-01178576⟩