Performance and characterization of the FinEstBeAMS beamline at the MAX IV Laboratory

Abstract

European Regional Development Fund (grant No. TK-141 HiTechDevices 2014-2020.4.01.15-0011 to University of Tartu; grant No. MAX-TEENUS 2014-2020.4.01.20-0278 to University of Tartu; grant No. Eesti Kiirekanal SLOFY11156T/1 to University of Tartu); Estonian Research Council (grant No. PRG-629 to University of Tartu); Jane & Aatos Erkko Foundation (grant No. SOFUS); Business Finland (grant No. 1464/31/2019); Academy of Finland (grant No. 319042; grant No. 326461; grant No. 326406; grant No. 320165); University of Oulu; University of Turku; Tampere University; University of Tartu. ; FinEstBeAMS (Finnish-Estonian Beamline for Atmospheric and Materials Sciences) is a multidisciplinary beamline constructed at the 1.5 GeV storage ring of the MAX IV synchrotron facility in Lund, Sweden. The beamline covers an extremely wide photon energy range, 4.5-1300 eV, by utilizing a single elliptically polarizing undulator as a radiation source and a single grazing-incidence plane grating monochromator to disperse the radiation. At photon energies below 70 eV the beamline operation relies on the use of optical and thin-film filters to remove higher-order components from the monochromated radiation. This paper discusses the performance of the beamline, examining such characteristics as the quality of the gratings, photon energy calibration, photon energy resolution, available photon flux, polarization quality and focal spot size. © 2021 International Union of Crystallography. All rights reserved. --//-- Chernenk, K., Kivimäki, A., Pärna, R., Wang, W., Sankari, R., Leandersson, M., . . . Huttula, M. (2021). Performance and characterization of the FinEstBeAMS beamline at the MAX IV laboratory. Journal of Synchrotron Radiation, 28, 1620-1630. doi:10.1107/S1600577521006032. ; ERDF TK-141 HiTechDevices 2014-2020.4.01.15-0011; MAX-TEENUS 2014-2020.4.01.20-0278; Eesti Kiirekanal SLOFY11156T/1; Estonian Research Council grant No. PRG-629; Jane & Aatos Erkko Foundation SOFUS; Business Finland 1464/31/2019; Academy of Finland 319042, 326461, 326406, 320165; University of Oulu; University of Turku; Tampere University; University of Tartu. Institute of Solid State Physics, University of Latvia as the Center of Excellence has received funding from the European Union's Horizon 2020 Framework Programme H2020-WIDESPREAD-01-2016-2017-TeamingPhase2 under grant agreement No. 739508, project CAMART2.