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| Home > Publications database > A MHz X-ray diffraction set-up for dynamic compression experiments in the diamond anvil cell |
| Journal Article | PUBDB-2023-01016 |
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2023
Wiley-Blackwell
Chester, UK
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Please use a persistent id in citations: doi:10.1107/S1600577523003910 doi:10.3204/PUBDB-2023-01016
Abstract: Abstract An experimental platform for dynamic diamond anvil cell (dDAC) research has been developed at the High Energy Density (HED) Instrument at the European X-ray Free Electron Laser (European XFEL). Taking advantage of the high repetition rate of the European XFEL (up to 4.5 MHz) to collect pulse-resolved MHz X-ray diffraction data from samples as they are dynamically compressed at intermediate strain rates (≤103 s-1), where up to 352 diffraction images can be collected from a single pulse train. The set-up employs piezo-driven dDACs capable of compressing samples in ≥340 µs, compatible with the maximum length of the pulse train (550 µs). Results from rapid compression experiments on a wide range of sample systems with different X-ray scattering powers are presented. A maximum compression rate of 87 TPa/s was observed during the fast compression of Au, while a strain rate of ~1100 s-1 was achieved during the rapid compression of N2 at 23 TPa/s.
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