ALS Photon Source parameters
Flux and Brightness Curves for Bend Magnets and Insertion Devices*
Operational
Elliptical Polarization Undulator
*U5, U8, U10, EPU, and W16 curves were calculated with the following source parameters:
| machine energy | 1.9 GeV |
| current | 400 mA |
| vertical emittance | 6x10-11 m·rad |
| vertical beta | 4.2 m |
| horizontal emittance | 6x10-9 m·rad |
| horizontal beta | 11.2 m |
Insertion Device Parameters
| Device | Beamline | Energy Range (at 1.5 GeV) | Energy Range (at 1.9 GeV) | Period Length | No. of Periods | Operating Gap Range | Effective Field Range |
|---|---|---|---|---|---|---|---|
| U3 Undulator | 6.0.2 | 73-3100 eV | 120-5000 eV 4000-11000 eVd |
3.0 cm | 50 | 0.55-2.7 cm | 1.5-0.13 T |
| U5 Undulator | 8.0.1 | 50-1900 eV | 80-3000 eV | 5.0 cm | 89 | 1.4-4.5 cm | 0.85-0.10 T |
| U5 Undulator | 7.0.1 | 50-1900 eV | 80-3000 eV | 5.0 cm | 89 | 1.4-4.5 cm | 0.85-0.10 T |
| U8 Undulator | 12.0.1 | 18-1200 eV | 20-1900 eV | 8.0 cm | 55 | 2.47-8.3 cm | 0.80-0.07 T |
| U10 Undulator | 9.0.1 | 5-950 eV | 8-1500 eV | 10.0 cm | 43 | 2.27-11.6 cm | 0.98-0.05 T |
| U10 Undulator | 10.0.1 | 8-950 eV | 12-1500 eV | 10.0 cm | 43 | 2.31-11.6 cm | 0.80-0.05 T |
| EPU5 Elliptical Polarization Undulator | 4.0.2 | 45-1000 eVa | 73-3000 eVa | 5.0 cm | 37 | 1.40-5.5 cm | 0.86-0.10 Tb 0.58-0.10 Tc |
| EPU5 Elliptical Polarization Undulator |
11.0.1 | 47-1000 eVa | 75-3000 eVa | 5.0 cm | 36.5 | 1.43-5.5 cm | 0.85-0.10 Tb 0.57-0.10 Tc |
| EPU5 Elliptical Polarization Undulator | 11.0.2 | 44-1000 eVa | 71-3000 eVa | 5.0 cm | 37 | 1.38-5.5 cm | 0.86-0.10 Tb 0.58-0.10 Tc |
| W11 Wiggler | 5.0.2 | 6-13 keVd | 6-21 keVd | 11.4 cm | 29 | 1.25-18.0 cm | 1.94-0.03 T |
a Elliptical polarization mode.
b Vertical field.
c Horizontal field.
d Wiggler mode