G1 Beamline Information
Source: | 1.5m CHESS Compact Undulator |
Technique: | SAXS, GISAXS, WAXS, BioSAXS |
Energy: | 8-13 keV |
Detectors: | Finger Lakes CCD |
- The G1 station is used for general high-flux small and wide angle monochromatic x-ray scattering that is tolerant of 1.5% energy bandwidth. Current upgrades include:
- online* size-exclusion chromatography (SEC-SAXS) for separating protein mixtures
- disposable low-scattering plastic microfluidic cells for SEC-SAXS and high-throughput SAXS
- online* multi-angle and dynamic light scattering (MALS & DLS)
- renovation of beamline control area (new furniture and partitions) to improve utilization of space and accommodate larger user groups
- organic solvent compatible temperature control SAXS cell
- GISAXS/GIWAXS custom-built furnace
* “online” refers to simultaneous or in situ data collection using x-rays in combination with other complementary methods. Terms like “SEC-SAXS” are also referred to as hyphenated methods.
- R&D activities:
- Combining inline size exclusion SAXS data with dynamic and static light scattering
- Cryogenic SAXS to prolong sample lifetime and trap intermediates
- Microfluidic dialysis of biological samples in situ on the beamline [1]
- Time-resolved BioSAXS

[1] M. Skou, S. Skou, T.G. Jensen, B. Vestergaard, R.E. Gillilan, Journal of Applied Crystallography 47, 1355-1366 (2014).