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Description

Bruker D8 A25 DaVinci X-ray Diffractometer and  LynxEye™ SuperSpeed Detector. Used for non-standard set-ups.

Can be used with either:

1) Mo radiation and focussing mirror optics.

2a) Cu radiation, Bragg Brentano

2b) Cu radiation, parrallel beam optics

Current status

Right now we are in the process of aligning the instrument with the Cu-tube, and test out capabilities of SAXS (Small-Angle X-ray Scattering). With the parallel beam optics fitted, this instrument will also be well suited for Grazing-Incidence Diffraction.

 

Well suited for (Mo radiation):
  • Determination of precise crystal lattice parameters
  • Detailed analysis of materials with known or partially known structures (lattice parameters, bond lengths and angles, thermal parameters)
  • Completion of partially solved structures
  • Elimination of preferred orientation
  • Suppression of fluorescence from Co, Mn and Fe based samples thanks to Mo radiation
  • Pair distribution functions (total scattering analysis)
  • Absorbing samples in transmission
  • In situ studies of solid/gas reactions in flow cell
  • In situ studies on batteries
Not so good for (Mo radiation):
  • High d-spacing materials (e.g. large pore zeolites, MOFs)- the low angle peaks may be missed due to the short wavelength.
Stages available:
  • Capillary spinner (mounted most of the time)
  • Transmission sample holder stage
  • Standard sample stage
  • Heat blower for capillary stage
  • Flipstick 9 position sample changer (to come)
  • Automated XYZ stage (to come)
  • Possibility to mount furnace (in future)

Photo: Kristin Høydalsvik Wells

Instrument specifications

Typically 3-155 degrees 2θ (0.46 Å-1 < Q < 17.3 Å-1, 13.6 Å > d > 0.36 Å) (for Mo-radiation)

Before you begin:

Equipment may not be used without training. See XRD-lab info.

Booking the instrument

Use the booking system.

In-situ experiments, custom build

 

 

 

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