TY  - JOUR
AU  - Schlappa, Justine
AU  - Ghiringhelli, Giacomo
AU  - Van Kuiken, Benjamin E.
AU  - Teichmann, Martin
AU  - Miedema, Piter S.
AU  - Delitz, Jan Torben
AU  - Gerasimova, Natalia
AU  - Molodtsov, Serguei
AU  - Adriano, Luigi
AU  - Baranasic, Bernard
AU  - Broers, Carsten
AU  - Carley, Robert
AU  - Gessler, Patrick
AU  - Ghodrati, Nahid
AU  - Hickin, David
AU  - Hoang, Le Phuong
AU  - Izquierdo, Manuel
AU  - Mercadier, Laurent
AU  - Mercurio, Giuseppe
AU  - Parchenko, Sergii
AU  - Stupar, Marijan
AU  - Yin, Zhong
AU  - Martinelli, Leonardo
AU  - Merzoni, Giacomo
AU  - Peng, Ying Ying
AU  - Reuss, Torben
AU  - Sreekantan Nair Lalithambika, Sreeju
AU  - Techert, Simone
AU  - Laarmann, Tim
AU  - Huotari, Simo
AU  - Schroeter, Christian
AU  - Langer, Burkhard
AU  - Giessel, Tatjana
AU  - Buchheim, Jana
AU  - Gwalt, Grzegorz
AU  - Sokolov, Andrey
AU  - Siewert, Frank
AU  - Buechner, Robby
AU  - Vaz da Cruz, Vinicius
AU  - Eckert, Sebastian
AU  - Liu, Chun-Yu
AU  - Sohrt, Christian
AU  - Weniger, Christian
AU  - Pietzsch, Annette
AU  - Neppl, Stefan
AU  - Senf, Friedmar
AU  - Scherz, Andreas
AU  - Föhlisch, Alexander
TI  - The Heisenberg-RIXS instrument at the European XFEL
JO  - Journal of synchrotron radiation
VL  - 32
IS  - 1
SN  - 0909-0495
CY  - Chester
PB  - IUCr
M1  - PUBDB-2025-00153
SP  - 29 - 45
PY  - 2025
AB  - Resonant inelastic X-ray scattering (RIXS) is an ideal X-ray spectroscopy method to push the combination of energy and time resolutions to the Fourier transform ultimate limit, because it is unaffected by the core-hole lifetime energy broadening. Also, in pump–probe experiments the interaction time is made very short by the same core-hole lifetime. RIXS is very photon hungry so it takes great advantage from high-repetition-rate pulsed X-ray sources like the European XFEL. The Heisenberg RIXS instrument is designed for RIXS experiments in the soft X-ray range with energy resolution approaching the Fourier and the Heisenberg limits. It is based on a spherical grating with variable line spacing and a position-sensitive 2D detector. Initially, two gratings were installed to adequately cover the whole photon energy range. With optimized spot size on the sample and small pixel detector the energy resolution can be better than 40 meV (90 meV) at any photon energy below 1000 eV with the high-resolution (high-transmission) grating. At the SCS instrument of the European XFEL the spectrometer can be easily positioned thanks to air pads on a high-quality floor, allowing the scattering angle to be continuously adjusted over the 65–145° range. It can be coupled to two different sample interaction chambers, one for liquid jets and one for solids, each state-of-the-art equipped and compatible for optical laser pumping in collinear geometry. The measured performances, in terms of energy resolution and count rate on the detector, closely match design expectations. The Heisenberg RIXS instrument has been open to public users since the summer of 2022.
LB  - PUB:(DE-HGF)16
C6  - 39705248
UR  - <Go to ISI:>//WOS:001395738600004
DO  - DOI:10.1107/S1600577524010890
UR  - https://bib-pubdb1.desy.de/record/622041
ER  -