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Novel experimental setup for megahertz X-ray diffraction in a diamond anvil cell at the High Energy Density (HED) instrument of the European X-ray Free-Electron Laser (EuXFEL)

H. P. Liermann 1 Z. Konôpková K. Appel C. Prescher 1 A. Schropp 1 V. Cerantola R. J. Husband 1 J. D. Mchardy 2 M. I. Mcmahon 2 R. S. Mcwilliams 2 C. M. Pépin 3, 4 J. Mainberger 1 M. Roeper 1 A. Berghäuser 5 H. Damker 1 P. Talkovski 1 M. Foese 1 N. Kujala O. B. Ball 2 M. A. Baron 6 R. Briggs 7 M. Bykov E. Bykova Julien Chantel 8 A. L. Coleman 7 H. Cynn 7 D. Dattelbaum 9 L. E. Dresselhaus-Marais 7 J. H. Eggert 7 L. Ehm 10 W. J. Evans 7 G. Fiquet 11 M. Frost K. Glazyrin 1 A. F. Goncharov H. Hwang 12 Zs. Jenei 7 J.-Y. Kim 13 F. Langenhorst 14 Y. Lee 12 M. Makita H. Marquardt 15 E. E. Mcbride Sébastien Merkel 8 G. Morard 6, 16 E. F. O'Bannon 7 C. Otzen 14, 1 E. J. Pace 2 A. Pelka 5 J. S. Pigott 9, 17 V. B. Prakapenka 18 R. Redmer 19 C. Sanchez-Valle 20 M. Schoelmerich S. Speziale 21 G. Spiekermann 22 B. T. Sturtevant 9 S. Toleikis 1 N. Velisavljevic 7 M. Wilke 22 C.-S. Yoo 23 C. Baehtz 5 U. Zastrau C. Strohm 1
Abstract : The high-precision X-ray diffraction setup for work with diamond anvil cells (DACs) in interaction chamber 2 (IC2) of the High Energy Density instrument of the European X-ray Free-Electron Laser is described. This includes beamline optics, sample positioning and detector systems located in the multipurpose vacuum chamber. Concepts for pump–probe X-ray diffraction experiments in the DAC are described and their implementation demonstrated during the First User Community Assisted Commissioning experiment. X-ray heating and diffraction of Bi under pressure, obtained using 20 fs X-ray pulses at 17.8 keV and 2.2 MHz repetition, is illustrated through splitting of diffraction peaks, and interpreted employing finite element modeling of the sample chamber in the DAC.
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Soumis le : vendredi 30 avril 2021 - 15:05:34
Dernière modification le : mardi 19 octobre 2021 - 19:02:00

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H. P. Liermann, Z. Konôpková, K. Appel, C. Prescher, A. Schropp, et al.. Novel experimental setup for megahertz X-ray diffraction in a diamond anvil cell at the High Energy Density (HED) instrument of the European X-ray Free-Electron Laser (EuXFEL). Journal of Synchrotron Radiation, International Union of Crystallography, 2021, Journal of Synchrotron Radiation, 28 (3), pp.688-706. ⟨10.1107/s1600577521002551⟩. ⟨hal-03213668⟩

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