Biological X-ray
Absorption Spectroscopy at SSRL
Welcome to the home page of the Structural Molecular Biology/X-ray
Absorption Spectroscopy Group at Stanford Synchrotron Radiation
Laboratory.
The SMB/XAS group develops methodology and instrumentation, and provides a wide
array of equipment, software and services/support for x-ray absorption
spectroscopy users at SSRL. Scientific focus is on dilute
metalloprotein XAS, microbeam imaging/XAS, low-Z XAS (S and Cl etc.), and polarized single
crystal XAS studies, for which specialized facilities are made
available. Equipment ranges from advanced solid-state array x-ray
fluorescence detector systems, liquid-He cryostats and capillary/
K-B optic micro-XAS instrumentation to wet-laboratory facilities. Software
provided by the group includes beam line and instrumentation control, data
acquisition, and on- and off-line data analysis.
The group operates three beam lines (BL4-3, BL7-3, and BL9-3) and provides equipment, software and
XAS user support on other XAS-capable beam lines.
SSRL is operated by Stanford University for the Department of Energy,
and the Office of
Basic Energy Sciences. The SSRL Structural Molecular Biology XAS
Program is supported by the Department of Energy, the Office of Biological and Environmental Research,
and by the National
Institutes of Health, the National Center for Research Resources, the Biomedical
Technology Program, and the National
Institute of General Medical Sciences.