The source of the X-Treme beamline is an elliptical polarizing undulator providing linear light between 0 and 90 degrees and right or left circular polarization. Below are a few important parameters of the undulator.
| Type | Elliptical undulator UE54 |
|---|---|
| Period length | 54 mm |
| Number of periods | 32 |
| Gap | 18 - 70 mm |
| Polarization | Linear ( -5o to 185o) Circular (right or left) |
| Operating on harmonics | 1 - 31 |
| Energy range | 150 - 8000 eV |
Calculated flux
Calculated flux for first, third and fifth harmonic with linear horizontal light and different front-end opening.