X-ray Techniques  /  Laue Diffraction

Laue Diffraction

Laue diffraction allows you to detect the weakest signals, even for thick samples at surprising exposure times. Experimental requirements include an X-ray detector with a combination of features: high resolution, a high dynamic range, and high efficiency for a range of X-ray energies.

With its ability to collect all XRD data in a single shot, Laue diffraction can be applied to a number of problems in Materials Science, such as inhomogeneous samples, in-situ and operando studies, crystal orientation, and strain mapping. However, challenges of the technique included assigning energies of the diffraction spots and detecting weak signals, particularly when they are in proximity to strong intensities. 

At synchrotron sources, this was addressed by combining a microfocus beam with large hybrid-pixel detectors, which can collect data with different energy thresholds. A high dynamic range, noise-free performance, and high resolution did the rest – with these features, even the weakest signals can be detected within each pixel without blurring.   

In laboratories, crystal orientation using Laue diffraction has been improved significantly, thanks to the combination of hard X-ray sources and hybrid-pixel detectors based on cadmium-telluride (CdTe) sensors. The high efficiency of CdTe for hard X-rays opened up a path to fast mapping of thick samples, without compromising on data quality: even the weak signals that are close to the direct beam can be detected with confidence.

  • Detect weak signals thanks to noise-free performance, a high dynamic range, and high resolution.
  • High performance of the detector at low and high X-ray energies.
  • Take images with different energy thresholds.

Laue Diffraction at Synchrotrons

  • Fast sample mapping, in-situ and operando studies benefit from a high frame rate, high detection efficiency and a large detection area.
  • Facilitate crystal structure determination with detector's  high dynamic range and small pixel size.
  • The EIGER2 detector family features an energy window with two energy thresholds.

Most Frequently Used Products at Synchrotrons

Laue Diffraction with Laboratory Diffractometers

  • Work at high X-ray energies with CdTe-based hybrid-pixel detectors.
  • Fast mapping experiments even for very thick samples with efficiency, speed, and high dynamic range.
  • Enjoy a long life cycle, stable correction files, and radiation-hard technology. 

Most Frequently Used Products in Laboratory Diffractometers

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