Beamline specifications

Photon flux at sample:

~ 1013 photons/sec at 10 keV

Beam divergence:

8 x 4 μrad2

Source size:

142 x 5 μm2

Insertion device

Spectroscopy undulator
Period length = 31.4 mm
Hmax=0.91 T

Energy range:

2.7 keV to 24 keV with mirrors for focusing and for higher harmonics rejection
Otherwise: 2.7 keV to 50 keV

Energy resolution (10 keV):

Si(111) Double-Crystal Monochromator (DCM): 1.3 eV
Si(311) DCM : 0.3 eV

Linear Polarization:

99.98 % linearly polarized beam

Variable Polarization:

Variable polarisation of incident light between 2.8 and 14 keV using double phase retarder;
Polarisation analysis of scattered light using analyzer crystals scattering under 90 deg.

Beamsize at sample:

Routinely (using mirrors): 145 x 40 μm2
Compound Refractive Lenses (CRLs): 30 x 4 um2