A reflectometer for at-wavelength characterisation of gratings

Eggenstein, F.; Schäfers, F.; Erko, A.; Follath, R.; Gaupp, A.; Löchel, Bernd; Senf, F.; Zeschke, Thomas

doi:10.1016/j.nima.2012.10.132

Cited by 8 publications

(1 citation statement)

References 22 publications

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“…Fig. 11(a) displays the simulated grating efficiencies together with the corresponding at-wavelength measurements performed at the Optics Beamline at BESSY (Eggenstein et al, 2013). The REFLEC program (Scha ¨fers & Krumrey, 1996) was used to simulate the grating efficiencies.…”

Section: Optimizing Grating Efficienciesmentioning

confidence: 99%

I21: an advanced high-resolution resonant inelastic X-ray scattering beamline at Diamond Light Source

et al. 2022

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The I21 beamline at Diamond Light Source is dedicated to advanced resonant inelastic X-ray scattering (RIXS) for probing charge, orbital, spin and lattice excitations in materials across condensed matter physics, applied sciences and chemistry. Both the beamline and the RIXS spectrometer employ divergent variable-line-spacing gratings covering a broad energy range of 280–3000 eV. A combined energy resolution of ∼35 meV (16 meV) is readily achieved at 930 eV (530 eV) owing to the optimized optics and the mechanics. Considerable efforts have been paid to the design of the entire beamline, particularly the implementation of the collection mirrors, to maximize the X-ray photon throughput. The continuous rotation of the spectrometer over 150° under ultra high vacuum and a cryogenic manipulator with six degrees of freedom allow accurate mappings of low-energy excitations from solid state materials in momentum space. Most importantly, the facility features a unique combination of the high energy resolution and the high photon throughput vital for advanced RIXS applications. Together with its stability and user friendliness, I21 has become one of the most sought after RIXS beamlines in the world.

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Section: Optimizing Grating Efficienciesmentioning

confidence: 99%