1W1B beamline is dedicated to hard X-ray Absorption Fine Structure (XAFS) spectroscopy, located in the No. 12 experimental hall of Beijing Synchrotron Radiation Facility (BSRF). XAFS is a powerful technique to probe the local geometrical and electronic structure around the absorbing atoms. Its unique characteristics, including element-specificity, nanometer range, and high sensitivity, make it a versatile technique at synchrotron radiation sources, and widely used in a large number of fields including physics, chemistry, material science, geology, biology and environmental science. The energy range of 1W1B beamline is 4.5 to 25 keV, which covers the K-edge of major transition metal elements and L3-edge of lanthanide and some heavy metals. Several techniques have been established to meet specific requirements. Some in situ reaction cell can be supported for online measurement. The station could run both in the dedicated mode of synchrotron radiation and parasitic mode.

Supported techniques:

Transmission fluorescence modes (TFY and PFY)

Extreme conditions: Low T (10K), High T (1300 K), High P (50 GPa)

In situ solid-gas reactor

Grazing incidence XAFS method for thin film samples

Time-resolved quick-scanning XAFS measurement

Scopes:

Biology

Environment

Materials

Catalytic

Physics

Chemistry

Geoscience

Archaeology　　　

Detectors

Lytle detector

19-element high purity Ge solid state detector

In-situ reaction chamber

Beamline Specs

Source  1.28T, 7 periods wiggler

Energy Range   4.8-22.8keV

Resolution (ΔE/E)  (1-3) ×10^-4@9keV

Flux on Sample >1×10¹¹@9keV 

photons/s @ 10 keV

Beam Size (H×V) 0.9mm × 0.3 mm