Beamline 7.2W
Macromolecular Crystallography
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)
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