کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5430382 | 1397399 | 2008 | 10 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Interatomic potentials for the ground state X 10+ and the two excited states 31, 30+ of the intercombination cadmium line 326.1 nm broadened by Kr pressure Interatomic potentials for the ground state X 10+ and the two excited states 31, 30+ of the intercombination cadmium line 326.1 nm broadened by Kr pressure](/preview/png/5430382.png)
The temperature dependence of the Cd line absorption profile at 326.1 nm perturbed by Kr has been carefully studied over a spectral range extending from 800 cmâ1 in the blue wing to 1200 cmâ1 in the red wing using a high-resolution double-beam spectrometer. The atomic densities of krypton (NKr) and cadmium (NCd) were (2.015±0.07)Ã1019 and (3.62±0.05)Ã1018 cmâ3, respectively. The temperature dependence of the studied line profile was analyzed in the framework of the quasi-static theory. The van der Waals coefficient differences between the ground 10+ state and the two excited states 30+ and 31 (ÎC60 and ÎC61) were obtained from the near red wing profile using Kuhn's law. The values of ÎC60 and ÎC61 are found to be equal to 37.8±2 and 58.5±3 eV à 6, respectively. The ground (X 10+), and the excited (31, 30+) state potentials at the internuclear separations from 3.2 to 6.3 à were determined. The well depths with their positions for these states are respectively equal to 134±7 cmâ1, 3.95±0.2 à ; 72.3±4 cmâ1, 4.95±0.3 à ; and 471±12 cmâ1, 3.6 à . The obtained well depths with their allowable errors are in good agreement with the values obtained before for the Cd-Kr system from some theoretical results and molecular beams experiments.
Journal: Journal of Quantitative Spectroscopy and Radiative Transfer - Volume 109, Issue 14, September 2008, Pages 2427-2436