mySpot Beamline

mySpot Beamline

mySpot Beamline is used to provide stable beam especially tuned for the mySpot experiment. Depending on the experiment requirements, different optical devices are used. The schematic view shows two different configurations, one tuned for low divergency, and one for narrow energy band width, as required for the scattering and spectroscopy experiments respectively. Since the goal of the experiment is to provide several methods at the same time, beamline properties can be tuned to provide the optimal beam for a given combination of experiments. Total intensity, divergence, energy resolution, high harmonics suppression, and stability in scans can be tuned to match the requirements. For details, please visit the experiment page.

Schematic view of the beamline

Schematic view of the beamline

Drei Monochromatoren der mySpot Beamline, von links nach Rechts: Si111, Si311, B4C/Mo Multilayer

Drei Monochromatoren der mySpot Beamline, von links nach Rechts: Si111, Si311, B4C/Mo Multilayer

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Beamline data
Segment L02
Location (Pillar) 3.2
Source 7T-WLS-1 (Wavelength Shifter)
Monochromator Multiple Crystal ( Si 111, Si 311) and Multilayer ( B4C/Mo, 2nm period )
Energy range 4 - 30 keV (not all usable for all methods)
Energy resolution 1/8000 - 1/500 depending on used monochromator
Flux 1e12 - 1e13 by optimal conditions and high flux monochromator
Polarisation horizontal
Divergence horizontal 1 mrad
Divergence vertical 1 mrad
Focus size (hor. x vert.) 400x400, 400x50, further focusing in experimental hutch using capillary optics
Fixed endstation mySpot
Flexible endstation(s) no
User endstation not possible
Distance Focus/last valve Variable mm
Height Focus/floor level 1500 mm
Beam availability 24h/d
Phone +49 30 8062 14793

Except 3 different monochromators, the beamline features the second, bimorph adaptive mirror, which is used to vertically focus the beam below 50µm. The mirror has 3 tracks, which are used for the suppression of higher harmonics.