Pressure Broadening of the Cadmium 326.1 nm Line

22nd International Conference on Spectral Line Shapes

Roston, G.D.^1 ; Helmi, M.S.^1

Department of Physics, Faculty of Science, Alexandria University, PO Box 21511, Alexandria, Egypt^1

关键词: Atomic density;    High resolution;    Line absorption;    Pressure-broadening;    Quasi-static theory;    Temperature dependence;    Van der Waals coefficients;    Wide spectral range;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/548/1/012013/pdf
DOI  :  10.1088/1742-6596/548/1/012013

来源: IOP

【 摘 要 】

The temperature dependence of the Cd line absorption profile at 326.1nm perturbed by inert gases (Xe, Kr, Ar, Ne and He) has been carefully studied over a wide spectral range in both blue and red wings using a high-resolution double-beam spectrometer. The atomic densities of inert gases (Ngas) and cadmium (NCd) was sufficient to study the wing of the Cd line at 326.1nm. The temperature dependence of the studied line profile was analyzed in the framework of the quasi-static theory. The van der Waals coefficient differences (ΔC60and ΔC61) between the ground X0+state and the two excited states A30+and B31 were obtained from the near red wing profile using Kuhn's law. All the results of the well depths with their positions for the ground (X0+), and the excited (31,30+) were determined. The obtained results are compared with the corresponding theoretical and experimental molecular beam experiments results.