MEX Beamlines
Welcome to the User Wiki for the Medium Energy X-ray Spectroscopy beamlines (MEX1 and MEX2).
The full energy range for MEX-1 is 3.5 - 13.8 keV.
The full energy range for MEX-2 is 1.7 - 3.2 keV.
We are not currently offering microprobe capability. The capability schedule below will be updated when the microprobe is ready to be rolled out.
*** Potential users MUST CONTACT BEAMLINE STAFF and discuss the proposed measurements before submitting their proposal ***
Contact us at: as-mex@ansto.gov.au
For more information on MEX1 and MEX2, please see the linked pages below and the ANSTO website.
Choosing an X-ray absorption spectroscopy beamline
For more information about the XAS Beamline, please visit the XAS User Wiki.
MEX capability schedule
MEX1 and MEX2 are new beamlines which came online in late 2022 and early 2023. Our current capability is outlined below (updated March 2024).
MEX1 | Capability | Room temperature, |
|---|---|---|
| Energy range | 3.5 - 13.8 keV |
| Experiment type | Ex situ samples ONLY. |
MEX2 | Capability | Drain current in vacuum. Fluorescence in helium |
| Energy range | 1.7 - 3.2 keV |
| Experiment type | Ex situ samples ONLY. |
Scan parameters
| MEX1 | MEX2 |
|---|---|---|
Maximum beam size (horizontal x vertical; beam size can be reduced from the maximum using slits) | 5 x 0.5 mm | 5 x 3 mm |
Estimated scan duration | ~20 mins XANES, ~35 mins EXAFS | ~30 mins XANES |