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Related Concept Videos

X-ray Diffraction of Biological Samples01:10

X-ray Diffraction of Biological Samples

X-ray diffraction or XRD is an analytical tool that utilizes X-rays to study ordered structures such as crystalline organic and inorganic samples, polycrystalline materials, proteins, carbohydrates, and drugs.
According to Bragg's law, when X-rays strike the sample positioned on a stage, the rays are  scattered by the electron clouds around the sample atoms. The  X-ray diffraction or scattering is caused by constructive interference of the X-ray waves that reflect off the internal crystal...

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Synchrotron X-ray Microdiffraction and Fluorescence Imaging of Mineral and Rock Samples
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High-performance soft x-ray spectromicroscopy beamline at SSRF.

Chaofan Xue1, Yong Wang, Zhi Guo

  • 1Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai Synchrotron Radiation Facility, Shanghai 201800, China.

The Review of Scientific Instruments
|November 2, 2010
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The Shanghai Synchrotron Radiation Facility

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Area of Science:

  • Materials Science
  • Physics
  • Chemistry

Background:

  • China's first third-generation synchrotron facility, the Shanghai Synchrotron Radiation Facility (SSRF), operates at 3.5 GeV.
  • A dedicated soft X-ray spectromicroscopy beamline was developed as part of the initial construction phase.

Purpose of the Study:

  • To characterize the performance of a new soft X-ray spectromicroscopy beamline at SSRF.
  • To evaluate the capabilities of advanced X-ray microscopy techniques.

Main Methods:

  • Utilized an elliptically polarized undulator light source.
  • Employed a plane grating monochromator for precise energy selection.
  • Integrated a scanning transmission X-ray microscope (STXM) end station for high-resolution imaging.

Main Results:

  • Achieved an energy resolving power exceeding 10,000 at the argon L-edge.
  • Demonstrated a spatial resolution better than 30 nm using the STXM.
  • Confirmed the high performance and capabilities of the new beamline.

Conclusions:

  • The new soft X-ray spectromicroscopy beamline at SSRF meets high-performance standards.
  • The achieved resolution and resolving power enable advanced materials and chemical analysis.
  • This facility advances synchrotron-based research in China.