P09 Resonant Scattering and Diffraction beamline

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P09 is designed to operate in the hard x-rays regime with energies ranging from 2.7 to 50 keV. The beamline consists of three experimental hutches. The first two experimental hutches, EH1 and EH2, are dedicated to resonant X-ray scattering and general diffraction (RSD) as well as XMCD experiments. The third hutch, EH3, will be used for other applications in the future.

Experimental Hutch 1 is used for resonant X-ray scattering experiments to investigate magnetic order, orbital order or other processes giving rise to non zero intensity at otherwise forbidden positions in reciprocal space. In addition other scattering experiments requiring good energy tunability between 2.7 and 24 keV or variable polarization, like non-resonant magnetic scattering, can be performed. A phase retarder and a polarization analyzer are available in order to vary and analyze the polarisation of the incoming and scattered beam, respectively. Closed-cycle cryostats covering the temperature range between 1.7K and 800K and a He-flow cryostat are available. Complete windowless operation of the diffractometer is also possible.

Experimental hutch 2 is equipped with a heavy-load horizontal Psi-diffractometer. It can be used for heavy sample chambers or the 14 T split-coil cryomagnet available at the beamline. The 14 T magnet is working in the temperature range from 1.8 K up to 300 K with the VTI or down to 320 mK using the He-3 insert.
A large volume pulse tube cryostat with high cooling power is available for high pressure experiments using diamond anvil cells (DACs). XMCD experiments at low temperatures are possible using an electromagnet in absorption and total fluorescence yield mode.