The Malvern Panalytical Empyrean Alpha 1 diffractometer was installed in the department in 2011. Its high resolution configuration is similar to that of Xpert, with improved collection times and expanded options. Users may vary the optics of the Empyrean to best suit their measurement, making it is the instrument of choice for high resolution measurements.
Source: Cu
Monochromator or nickel filter: Ge(111) single bounce monochromator (27.6 degree)
Primary optics, defaults in bold:
- 0.02, 0.04 radian (or removed) changeable soller slits,
- 5, 10, 15, 20mm mask,
- programmable divergence slit (default fixed 1/2 degree)
- fixed primary antiscatter slit, changable from 1/32 to 4 degree (default 1 degree)
secondary optics:
- 0.02, 0.04 radian (or removed) changeable soller slits
- programmable antiscatter slit (default fixed 1 degree)
Detector: PIXcel1D, low backround silicon strip direct detector with a 3.3473 degree active length. Energy thresholding resolution ~1.4KeV.
Sample Stages: Spinner stage, Flat bracket stage, Capillary spinner stage.
Min/ Max angle: 4.5 - 150
