Beamline 7.2W
Macromolecular Crystallography
Welcome to BL7.2W
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Macromolecular Crystallography (MX): High‑resolution protein and biomolecular structure analysis
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X-ray Absorption Spectroscopy (XAS): Oxidation states and local atomic environment studies
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Grazing Incidence X-ray Absorption Spectroscopy (GIXAS): Surface and thin‑film characterization
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Micro-X-ray Absorption Spectroscopy (Micro-XAS): Localized atomic structure at the microscale
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Wide-Angle X-ray Scattering (WAXS): Crystalline and polymer structure investigation
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Grazing Incidence Wide-Angle X-ray Scattering (GIWAXS): Thin‑film and surface crystallography
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X-ray Fluorescence Spectroscopy (XRF): Elemental composition analysis
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Micro-X-ray Fluorescence Spectroscopy (Micro-XRF): High‑resolution elemental mapping
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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
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X-ray Beam Properties: Monochromatic and tunable for precise experimental control
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Energy Range: 4.0 –22.7 keV (3.10–0.55 Å)
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Photon Flux: 5 × 10¹⁰ to 1.4 × 10¹¹ phs/s/100 mA
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Beam Size: 20 µm @12 keV for micro-beam techniques
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Beam Footprint: Adjustable up to 10.32 mm while maintaining suitable flux for TXRF measurements
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Sample Environment: Helium chamber for light element analysis
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Motorized Stage: Six-axis control for grazing incidence techniques
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Gas Mixing System: Automated and user-friendly for XAS experiments
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:
Applications Across Scientific Fields
BL7.2W has been utilized in diverse research areas:
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Environmental science
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Agricultural and plant science
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Food science
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Geochemistry and gemology
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Cultural heritage and archaeology
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Biochemistry and medical research
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Catalysis and materials science