Fig. 8: Photon flux from the 1.5 m long CPMU at beamline ID15A.
From: The Extremely Brilliant Source storage ring of the European Synchrotron Radiation Facility
The flux was measured for a 18 mm period with 0.97 T peak field at 6 mm gap, through a pair of slits set at 0.2 × 0.2 mm2 at 30 m distance. The plus signs represent measurements after optimising the monochromator energy for each undulator gap value. The disks are calculations for an ideal undulator (undulator harmonics 5–11). The horizontal emittance of the storage ring was 160 pm rad.
