The Advanced Light Source's beamline 10.3.2 is an X-ray microprobe that uses a monochromatic beam ranging from 2.1  to 14 keV, with a tunable spot size ranging from 1 x 1 μm up to 7 x 7 μm (H x V) to characterize environmental, material, biological and chemical samples. 

The endstation provides:

• Micro-focused X-ray fluorescence (XRF) mapping down to Na Kα (~1 keV)

• Micro- focused X-ray absorption spectroscopy (XAS) down to P K-edge (~2.1 keV) in fluorescence and transmission modes.

• Micro-focused X-ray fluorescence spectroscopy (XFS)

This beamline also provide cryogenic capabilities, notably a sample-cryoplunging station.

The beamline will go through several upgrades this cycle and will continue to operate until the start of the ALS-U dark time (June 2026).  

To submit your proposal go to the ALS user portal, ALSHub  (https://alshub.als.lbl.gov). Only proposals that require micro-focused capabilities will be considered.