Portal de Periódicos da CAPES

IRIXS: a resonant inelastic X-ray scattering instrument dedicated to X-rays in the intermediate energy range

2020; Wiley; Volume: 27; Issue: 2 Linguagem: Inglês

10.1107/s1600577519017119

1600-5775

H. Gretarsson, Didem Ketenoğlu, Manuel Harder, Simon Mayer, Frank-Uwe Dill, M. Spiwek, Horst Schulte-Schrepping, Markus Tischer, Hans‐Christian Wille, B. Keimer, Hasan Yavaş,

Crystallography and Radiation Phenomena

A new resonant inelastic X-ray scattering (RIXS) instrument has been constructed at beamline P01 of the PETRA III synchrotron. This instrument has been named IRIXS (intermediate X-ray energy RIXS) and is dedicated to X-rays in the tender-energy regime (2.5–3.5 keV). The range covers the L 2,3 absorption edges of many of the 4 d elements (Mo, Tc, Ru, Rh, Pd and Ag), offering a unique opportunity to study their low-energy magnetic and charge excitations. The IRIXS instrument is currently operating at the Ru L 3 -edge (2840 eV) but can be extended to the other 4 d elements using the existing concept. The incoming photons are monochromated with a four-bounce Si(111) monochromator, while the energy analysis of the outgoing photons is performed by a diced spherical crystal analyzer featuring (10 2 ) lattice planes of quartz (SiO 2 ). A total resolution of 100 meV (full width at half-maximum) has been achieved at the Ru L 3 -edge, a number that is in excellent agreement with ray-tracing simulations.