학술논문
A MHz X-ray diffraction set-up for dynamic compression experiments in the diamond anvil cell.
Document Type
Article
Author
Husband, Rachel J.; Strohm, Cornelius; Appel, Karen; Ball, Orianna B.; Briggs, Richard; Buchen, Johannes; Cerantola, Valerio; Chariton, Stella; Coleman, Amy L.; Cynn, Hyunchae; Dattelbaum, Dana; Dwivedi, Anand; Eggert, Jon H.; Ehm, Lars; Evans, William J.; Glazyrin, Konstantin; Goncharov, Alexander F.; Graafsma, Heinz; Howard, Alex; Huston, Larissa
Source
Subject
*DIAMOND anvil cell
*X-ray diffraction
*FREE electron lasers
*STRAIN rate
*X-ray scattering
*X-ray lasers
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Language
ISSN
0909-0495
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). Advantage was taken 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 ms, compatible with the maximum length of the pulse train (550 ms). 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-1 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 s1. [ABSTRACT FROM AUTHOR]