Example: Al K-shell absorption spectra

Displaying transition information

For DCA elements, Visualizer can display line transition information so that the spectral features can be easily identified.

• Click on Edit ... and in the Instrumental Effects dialog, clear the value in E/dE field (or enter 0 for infinite resolution) and click on OK.
• Under Show: check the boxes Transitions table and Transitions in plot. The transition table will open in a new window.
• To show strong bound-bound transitions: in the transitions window, move the photon energy slider to only include those transitions within the spectral range, move the minimum oscillator strength slider to ~ 0.5, check the Levels not in atomic model and Bound-free check-boxes and click on the Update button.
• Select any transition in the table (in this example, Al He-alpha). A corresponding transition indicator in the spectral window will be highlighted.

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