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Enhancing high-energy powder X-ray diffraction applications using a PILATUS4 CdTe detector.

Tilman Donath¹, Sofia Trampari¹, Lucas Wagner¹

¹DECTRIS Ltd, Täfernweg 1, 5405 Baden, Switzerland.

Journal of Synchrotron Radiation

|February 17, 2025

Summary

The new PILATUS4 cadmium telluride detector enhances synchrotron research with high-energy X-ray measurements. Its advanced capabilities improve time and spatial resolution for materials, chemical, and energy studies.

Keywords:

PILATUS4 cadmium telluride hybrid photon counting in situ X-ray powder diffraction pixel detectors time-resolved powder diffraction

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Area of Science:

Materials Science
Chemistry
Physics

Background:

Hybrid photon counting detectors have revolutionized synchrotron research.
Large cadmium telluride (CdTe) detectors, introduced in 2015, enabled new high-energy X-ray measurements.

Purpose of the Study:

To describe the specifications of the new PILATUS4 CdTe detector.
To present prototype testing results for high-energy powder X-ray diffraction (XRD) studies.

Main Methods:

Testing the PILATUS4 CdTe detector at MAX IV and ESRF synchrotrons.
Conducting time-resolved in situ solid-state reaction studies.
Performing fast-scanning XRD computed tomography of a battery cell.

Main Results:

The PILATUS4 detector exhibits high quantum efficiency up to 100 keV.
Maximum frame rate of 4000 Hz enables rapid data collection.
Demonstrated improved time and spatial resolution in high-energy powder XRD.

Conclusions:

The PILATUS4 detector significantly advances high-energy powder XRD capabilities.
Facilitates breakthroughs in materials, chemical, and energy research through enhanced data collection.
Enables faster and more detailed in situ and operando studies.