We describe a collisional-radiative equilibrium model for predicting the optical emission spectrum of low-temperature magnesium plasmas, specifically those created by laser ablation. In the model, levels are populated by a balance of collisional and radiative rates. We include Stark widths of lines and trapping of radiation in the calculations. By use of this model we discuss various issues of importance in spectral analysis of laser ablated plasma plumes, such as the partial local thermodynamic equilibrium approximation, line trapping and time dependence.
|Number of pages||9|
|Journal||Plasma Sources Science and Technology|
|Publication status||Published - Aug 2000|
ASJC Scopus subject areas
- Physics and Astronomy(all)
- Condensed Matter Physics