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This monochromator is an optimized version of the first monochromator installed at the SXR beamline at SLAC (see project P308). The required grazing incidence at XFEL beamlines implies a large distance between pre-mirror and grating, which explains the stadium-shaped footprint of the vacuum chamber.
This soft X-ray deflecting mirror unit is part of the SIX beamline, dedicated to high resolution soft X-ray scattering experiments. Energy resolution and pointing stability are here of crucial importance. It features an adapted constant-strut-length mechanism accounting for space constraints due to the proximity to the experimental station of the resonant innelastic X-ray scattering spectrometer (RIXS).
This hard X-ray switching mirror unit is part of the combined hard and soft X-ray EMIL beamlines at BESSY. It features an optimized design of the constant-strut-length hexapod mechanism used for the first Bestec hexapod (see project P377). The mirror switching is realized by a vertical movement. The vacuum chamber accomodates not only the actual beam but also the passing…
The constant-strut-length hexapod design used in this soft X-ray deflecting mirror unit is adapted from that of the EMIL beamlines hexapods (see projects P405 to P412).
The long pre-mirror integrated in this monochromator required an adapted design to achieve the requested high repeatability and stability of mirror and grating pitch rotations. Special attention was payed to block zero-order and stray light by using several water cooled masks and beam stops.
This soft X-ray exit slit unit is part of the combined hard and soft X-ray EMIL beamlines at BESSY. The vacuum chamber accomodates not only the actual beam but also the passing hard X-ray beam of the neighbouring branch.
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