The Low Density Matter (LDM) beamline at FERMI: optical layout and first commissioning

Svetina, C.; Grazioli, C.; Mahne, N.; Raimondi, L.; Fava, C.; Zangrando, M.; Gerusina, S.; Alagia, M.; Avaldi, L.; Cautero, G.; de Simone, M.; Devetta, M.; Di Fraia, M.; Drabbels, M.; Feyer, V.; Finetti, P.; Katzy, R.; Kivimäki, A.; Lyamayev, V.; Mazza, T.; Moise, A.; Möller, T.; O'Keeffe, P.; Ovcharenko, Y.; Piseri, P.; Plekan, O.; Prince, K.C.; Sergo, R.; Stienkemeier, F.; Stranges, S.; Coreno, M.; Callegari, C.

doi:10.1107/S1600577515005743

Journal of Synchrotron Radiation Journal of
Synchrotron Radiation

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Figure 4
Calculated transmission of the LDM beamline optics for the two FEL sources and the two linear polarizations (FEL-1: red traces; FEL-2: blue traces; vertical polarization: solid traces; horizontal polarization: dotted traces). The mirrors delivering the photon beam to the LDM end-station are PM1a, PM1b, LE grating for FEL-1; PM2a and HE grating for FEL-2; mirrors SW, VD, H-KB, V-KB are common to both. The geometrical losses have been included in the calculation. The discontinuity at 41.3 nm is due to the use of two different databases: Palik (1997