U41-PEAXIS

PEAXIS - Combined RIXS and XPS

U41-PEAXIS beamline is one of the highest flux beamlines at BESSY II. It provides highly focused soft X-rays, thanks to the ellipsoidal refocusing mirror. The beamline is connected to a fixed endstation PEAXIS that is dedicated to studies of angle-resolved RIXS (Resonant Inelastic X-ray Scattering) and PES (PhotoElectron Spectroscopy) on solids and liquid cells.

Beamline layout

Beamline layout

Photon flux at the exit slit. The flux at the sample position is roughly half of it.

Photon flux at the exit slit. The flux at the sample position is roughly half of it.

Beamline resolution @ 401 eV

Beamline resolution @ 401 eV

Beamline resolution @ 867 eV

Beamline resolution @ 867 eV

Focal spot @ 400 eV and slit 20 µm

Focal spot @ 400 eV and slit 20 µm

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Beamline data
Segment L06
Location (Pillar) 7.2
Source U41
Monochromator 800 l/mm PGM
Energy range 180 - 1600 eV
Energy resolution photon energy dependent, see the X-ray absorption spectra of N2 and Ne gas
Flux photon energy dependent, see the flux curve
Polarisation horizontal
Divergence horizontal mrad
Divergence vertical 1 mrad
Focus size (hor. x vert.) see the image of focal spot
Distance Focus/last valve 750 mm
Height Focus/floor level 1410.6 mm
Free photon beam available no
Fixed end station ja
Beam available 12h/d
Phone (030) 8062-13154