BioXAS Spectroscopy is a set of two beamlines specifically designed to measure the XAS spectra of transition elements in bulk biological samples with diluted concentrations.

Spectral Range

5-32 keV



Support sample holders include slotted frames (for transmission measurements either at room temperature or using the cryostat), round sample holders for pellets, and cuvettes (for frozen liquid samples)

Typically, sample dimensions larger than 5 x 1 mm will work, but would ideally be around 7 x 3 mm or larger. The maximum size for samples to be placed in the cryostat is 15 x 5 mm.



CLS Port 07ID-2
Source 2.1T Wiggler
Resolution 5 x 10-5
Spot Sizes 3 mm x 0.5 mm (H x V)
Photon Flux
up to 1 x 1012 ph/s


Graham George BioXAS Beamline Advisory Team Leader
Ingrid Pickering BioXAS Beamline Advisory Team Leader

Visit the BioXAS-Spectroscopy website for a full list of beamline contacts.

Full Contact List