Measurement of atomic Stark parameters of many MnI and FeI spectral lines using GMAW process

S Zielinska (1, 2, 3) , S Pellerin (2, 3) , K Dzierzega (1) , Flavien Valensi (2, 4) , K Musiol (1, 3) , F Briand (5)

1 MSIP - Marian Smoluchowski Institute of Physics
2 GREMI - Groupe de recherches sur l'énergétique des milieux ionisés
3 Fotonic
4 LAPLACE-AEPPT - Arc Electrique et Procédés Plasmas Thermiques
5 CTAS - Centre Technique des Applications du Soudage

The particular character of the welding arc working in pure argon, which emission spectrum consists of many spectral lines strongly broadened by Stark effect, has allowed to measure, sometimes for the first time, the Stark parameters of 15 Mn I and 10 Fe I atomic spectral lines, and to determine the dependence in temperature of normalized Stark broadening in N e = 10 23 m -3 of the 542.4 nm atomic iron line. These results show that special properties of the MIG plasma may be useful in this domain because composition of the wire-electrode may be easily adapted to needs of an experiment.

Mots clés: GMAW; Stark parameters; optical emission spectroscopy; diagnostic; Mn; Fe PAC number: 52.25.Os; 52.50.Dg; 52.50.Nr; 52.70.Kz; 52.75.Hn; 52.77.Fv

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

S Zielinska, S Pellerin, K Dzierzega, Flavien Valensi, K Musiol, et al.. Measurement of atomic Stark parameters of many MnI and FeI spectral lines using GMAW process. Journal of Physics D: Applied Physics, 2010, 43 (43), pp.434005. ⟨10.1088/0022-3727/43/43/434005⟩. ⟨hal-00569734⟩