BL5.1W:XAS

Welcome to BL7. 2W

The beamline utilizes hard X-rays generated by the 6.5-Tesla Superconducting Wavelength Shifter (SWLS) and supports a wide range of advanced experimental techniques, including:

Macromolecular Crystallography (MX):
High‑resolution protein and biomolecular structure analysis
X-ray Absorption Spectroscopy (XAS):
Oxidation states and local atomic environment studies
Grazing Incidence X-ray Absorption Spectroscopy (GIXAS):
Surface and thin‑film characterization
Micro-X-ray Absorption Spectroscopy (Micro-XAS):
Localized atomic structure at the microscale
Wide-Angle X-ray Scattering (WAXS):
Crystalline and polymer structure investigation
Grazing Incidence Wide-Angle X-ray Scattering (GIWAXS):
Thin‑film and surface crystallography
X-ray Fluorescence Spectroscopy (XRF):
Elemental composition analysis
Micro-X-ray Fluorescence Spectroscopy (Micro-XRF):
High‑resolution elemental mapping
Total Reflection X-ray Fluorescence (TXRF):
Ultra‑trace element detection

Superconducting Wavelength Shifter (SWLS)

The Front-End of BL7. 2W

Optical Hutch at BL7. 2W

Beamline Capabilities

X-ray Beam Properties: Monochromatic and tunable for precise experimental control
Energy Range: 4.0 -22.7 keV (3.10–0.55 Å)
Photon Flux: 5 × 101⁰ to 1.4 × 1011 phs/s/100 mA
Beam Size: 20 µm @12 keV for micro-beam techniques
Beam Footprint: Adjustable up to 10.32 mm while maintaining suitable flux for TXRF measurements
Sample Environment: Helium chamber for light element analysis
Motorized Stage: Six-axis control for grazing incidence techniques
Gas Mixing System: Automated and user-friendly for XAS experiments

Applications Across Scientific Fields

BL7. 2W has been utilized in diverse research areas:

Environmental science
Agricultural and plant science
Food science
Geochemistry and gemology
Cultural heritage and archaeology
Biochemistry and medical research
Catalysis and materials science