Comprehensive transition probabilities in Mo I
| Autor: | W Whaling, J W Brault |
|---|---|
| Rok vydání: | 1988 |
| Předmět: |
education.field_of_study
Materials science Population Condensed Matter Physics Atomic and Molecular Physics and Optics Cathode Spectral line law.invention symbols.namesake Fourier transform law Excited state Radiative transfer symbols Atomic physics Inductively coupled plasma education Mathematical Physics Excitation |
| Zdroj: | Physica Scripta. 38:707-718 |
| ISSN: | 1402-4896 0031-8949 |
| DOI: | 10.1088/0031-8949/38/5/010 |
| Popis: | Transition probabilities for 2835 lines in Mo I between 2548 A and 10565 A have been measured by combining radiative level lifetimes, excited level populations measured in an inductively coupled plasma (ICP) source, and emission branching ratios measured with the ICP source and with a hollow cathode discharge source. We show that the level populations in the ICP source approximate a thermal distribution and use this property to interpolate between levels of known lifetime to find the population of levels of unknown lifetime. Comparison of the spectra from the two different sources distinguishes between Mo I and II lines and detects hidden blends and self-absorption in the hollow cathode source. Improved excitation energy for many Mo I levels was extracted from the high resolution Fourier transform spectrum, and 27 new levels were found. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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