LAMBDA 2M Advances New Technique for Measuring High-Pressure Melting

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We are proud to share a new publication enabled by our LAMBDA detectors at beamline P02.2 at DESY. The international research team from DESY, Lawrence Livermore National Laboratory, the University of Edinburgh, and the Karlsruhe Institute of Technology developed a technique to accurately determine melting point of opaque materials under high pressure. 

This technique combines X-ray phase contrast imaging and X-ray diffraction in a laser-heated diamond anvil cell, operating at pressures of up to 500,000 bar and temperatures as high as 4,000 Kelvin. 

Crucial was the combination of the high flux stability of GaAs, high-resolution for structure determination and a small camera form factor allowing for simultaneous diffraction and down-stream imaging. 

The full study can be accessed in the article published in Results in Physics under the title “X-ray phase contrast imaging and diffraction in the laser-heated diamond anvil cell: A case study on the high-pressure melting of Pt.” The article can be found with the DOI: 10.1016/j.rinp.2025.108132.