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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).

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.

SUBMITTER: Liermann HP 

PROVIDER: S-EPMC8127375 | biostudies-literature | 2021 May

REPOSITORIES: biostudies-literature

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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).

Liermann H P HP   Konôpková Z Z   Appel K K   Prescher C C   Schropp A A   Cerantola V V   Husband R J RJ   McHardy J D JD   McMahon M I MI   McWilliams R S RS   Pépin C M CM   Mainberger J J   Roeper M M   Berghäuser A A   Damker H H   Talkovski P P   Foese M M   Kujala N N   Ball O B OB   Baron M A MA   Briggs R R   Bykov M M   Bykova E E   Chantel J J   Coleman A L AL   Cynn H H   Dattelbaum D D   Dresselhaus-Marais L E LE   Eggert J H JH   Ehm L L   Evans W J WJ   Fiquet G G   Frost M M   Glazyrin K K   Goncharov A F AF   Hwang H H   Jenei Zs Z   Kim J Y JY   Langenhorst F F   Lee Y Y   Makita M M   Marquardt H H   McBride E E EE   Merkel S S   Morard G G   O'Bannon E F EF   Otzen C C   Pace E J EJ   Pelka A A   Pigott J S JS   Prakapenka V B VB   Redmer R R   Sanchez-Valle C C   Schoelmerich M M   Speziale S S   Spiekermann G G   Sturtevant B T BT   Toleikis S S   Velisavljevic N N   Wilke M M   Yoo C S CS   Baehtz C C   Zastrau U U   Strohm C C  

Journal of synchrotron radiation 20210414 Pt 3

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 expe  ...[more]

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