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Broadening of the Ca+and Mg+resonance lines by collisions with helium
| Content Provider | Scilit |
|---|---|
| Author | Monteiro, T. S. Cooper, I. L. Dickinson, A. S. Lewis, E. L. |
| Copyright Year | 1986 |
| Description | Journal: Journal of Physics B: Atomic and Molecular Physics Model potential curves for low-lying Sigma and II states of the $Ca^{+}$-He and $Mg^{+}$-He systems were calculated and used to obtain fully quantal broadening and shift parameters for the Ca^{+}$4P_{1/2,3/2}$ to 4S and Mg^{+}$3P_{1/2,3/2}$ to 3S spectral lines for a range of temperatures 400-3000 K. Comparison with experiment shows satisfactory agreement for the $Ca^{+}$ lines but a 33% discrepancy for the only $Mg^{+}$ measurement, that for the k line at 556 K. Possible experimental origins for this discrepancy are discussed. Simple semiclassical dynamics is shown to be satisfactory for the high temperature $Mg^{+}$ and $Ca^{+}$ widths. Rates for fine-structure changing collisions were evaluated over the same temperature range. |
| Related Links | http://iopscience.iop.org/article/10.1088/0022-3700/19/24/012/pdf |
| Ending Page | 4111 |
| Page Count | 25 |
| Starting Page | 4087 |
| ISSN | 00223700 |
| DOI | 10.1088/0022-3700/19/24/012 |
| Journal | Journal of Physics B: Atomic and Molecular Physics |
| Issue Number | 24 |
| Volume Number | 19 |
| Language | English |
| Publisher | IOP Publishing |
| Publisher Date | 1986-12-28 |
| Access Restriction | Open |
| Subject Keyword | Journal: Journal of Physics B: Atomic and Molecular Physics |
| Content Type | Text |
| Resource Type | Article |
| Subject | Atomic and Molecular Physics, and Optics |
