Contact Tel: +33(0)47688 +ext Manfred BURGHAMMER ID13 Responsible 2724 Sebastian SCHOEDER PDoc. Scientist 1938 Christian RIEKEL Emeritus Scientist 2051 Control Cabin I 2528 Control Cabin II 2798 Control Cabin III 2441 More Contacts...

Synopsis

The principal aim of the Microfocus Beamline (ID13) is to provide small focal spots for diffraction and small-angle X-ray scattering (SAXS). Both single crystal and scanning diffraction experiments are performed. Other applications, like scanning X-ray microfluorescence are feasible.

The beamline characteristics are as follows:

• Primary Source: 18 mm period in-vacuum undulator optimized for 12.5 keV
• Secondary Source: 46 mm period, fully tunable undulator
• Incident photon energy: variable between about 5 keV (Be cut-off) and about 17 keV (mirror cut-off). Higher energies are accessible without focusing
• Monochromatisation: liq. N₂ cooled Si-111 double crystal or Si-111 channel cut monochromators (in series)

 

Experimental Hutch I:

• Microgoniometer with 5/10/30 µm beam sizes. Used for protein crystallography, small unit cell crystallography, fibre diffraction and special applications. This hutch is currently under refurbishment.

 

Experimental Hutch II:

• x/y/z Scanning setup with air bearing rotation and tilt options.
• Microbeam optics by CRL's and defining collimator: ≥ 5 µm minimum beam size
• Micron-sized beam by KB-mirror pair: ≈ 1.1 µm operational value
• Suitable for in situ studies (deformation, microfludics, µRaman etc..)

 

Experimental Hutch III:

• Operational since 2007
• 250 nm beams using KB-mirror optics
• Target beam size: 50 nm or less
• Dedicated X-ray fluorescence detector setup

 

Main Experimental Techniques

A broad range of materials are examined, from bio- and synthetic polymers to composites and minerals. Two diffractometer set-ups allow examining single crystals (including proteins), fibres or extended samples. Below are some typical examples of techniques which are currently in regular use. Please click the subject areas for more details.

• Scanning Diffractometry
• Single Crystal Diffractometry

 

Special set-ups

The availability of microbeams has led to the development of specific sample environments.

• Stretching cells
• Micro-grazing-incidence small angle X-ray scattering (GISAXS)
• In-situ Micro Raman Spectroscopy
• Microfluidics (utilising both mixing-cell and microdroplet technologies)
• Micro-indentation: Vickers-type indenter; ex-situ and in-situ experiments

Please ask beamline staff for the availability of a specific set-up. For user-specific set-ups please contact beamline staff for adaptation to the beamline. A technical drawing (Solid Works or AutoCad) would be helpful.