1. It provides a useable photon energy range up to ~40 keV, including most of the elements, either via the K- or L-edge measurements
2. It provides a broad band incoming spectrum 'constant' in time as desired for high quality spectroscopy measurements, especially as in XAFS, the measurement requires a high beam stability over a substantial range of photon energy even in a single scan (c.a. over 1keV after the absorption edge)
3. The simultaneous availability of a broad band SR spectrum for time resolved spectroscopic studies.

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