Chernenko, K.; Kivimäki, A.; Pärna, R.; Wang, W.; Sankari, R.; Leandersson, M.; Tarawneh, H.; Pankratov, V.; Kook, M.; Kukk, E.; Reisberg, L.; Urpelainen, S.; Käämbre, T.; Siewert, F.; Gwalt, G.; Sokolov, A.; Lemke, S.; Alimov, S.; Knedel, J.; Kutz, O.; Seliger, T.; Valden, M.; Hirsimäki, M.; Kirm, M.; Huttula, M.: Performance and characterization of the FinEstBeAMS beamline at the MAX IV Laboratory. Journal of Synchrotron Radiation 28 (2021), p. 1620-1630
10.1107/S1600577521006032
Open Accesn Version
Abstract:
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 grazingincidence 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.