Author:
Ingold Gerhard,Abela Rafael,Arrell Christopher,Beaud Paul,Böhler Pirmin,Cammarata Marco,Deng Yunpei,Erny Christian,Esposito Vincent,Flechsig Uwe,Follath Rolf,Hauri Christoph,Johnson Steven,Juranic Pavle,Mancini Giulia Fulvia,Mankowsky Roman,Mozzanica Aldo,Oggenfuss Roland Alex,Patterson Bruce D.,Patthey Luc,Pedrini Bill,Rittmann Jochen,Sala Leonardo,Savoini Matteo,Svetina Cristian,Zamofing Thierry,Zerdane Serhane,Lemke Henrik Till
Abstract
The Bernina instrument at the SwissFEL Aramis hard X-ray free-electron laser is designed for studying ultrafast phenomena in condensed matter and material science. Ultrashort pulses from an optical laser system covering a large wavelength range can be used to generate specific non-equilibrium states, whose subsequent temporal evolution can be probed by selective X-ray scattering techniques in the range 2–12 keV. For that purpose, the X-ray beamline is equipped with optical elements which tailor the X-ray beam size and energy, as well as with pulse-to-pulse diagnostics that monitor the X-ray pulse intensity, position, as well as its spectral and temporal properties. The experiments can be performed using multiple interchangeable endstations differing in specialization, diffractometer and X-ray analyser configuration and load capacity for specialized sample environment. After testing the instrument in a series of pilot experiments in 2018, regular user operation begins in 2019.
Funder
Swiss National Government
ETH Council
Swiss National Science Foundation
Publisher
International Union of Crystallography (IUCr)
Subject
Instrumentation,Nuclear and High Energy Physics,Radiation
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