Brief overview (Detailed overview see below)
Friday, 23 January 2026
European XFEL | European XFEL data Workshop (Time: 10:30-17:00, Location: Zoom) Programme
Monday, 26 January 2026 - Friday 30 January 2026
European XFEL & DESY & EMBL | MX satellite meeting
Registration: https://indico.desy.de/event/51380/manage/registration/7297/
Monday, 26 January 2026
European XFEL & DESY | Prospects of Momentum Microscopy at PETRA III, FLASH, and EuXFEL (Time: Full day, Location: European XFEL, Holzkoppel 4, 22869 Schenefeld)
DESY | Temporally Coherent Synchrotron Light Sources (Time: Full day, Location: tba)
DESY | Community proposal at the seeded FLASH1 (Time: Afternoon, Location: tba)
European XFEL | Satellite Workshop on Photon Diagnostics (XPD) (Time: Afternoon, Location: European XFEL, Holzkoppel 4, 22869 Schenefeld)
Tuesday, 27 January 2026
DESY | Temporally Coherent Synchrotron Light Sources (Time: Full day, Location: tba)
ROCK IT | Project Meeting (Time: Morning, Location: tba, closed session) Further information: https://indico.desy.de/event/50946/
Wednesday, 28 January 2026
European XFEL | Pump-Probe lasers 2030+ (Time: 09:00-17:00, Location: European XFEL, Holzkoppel 4, 22869 Schenefeld) Programme
DESY | DAHNE4NFDI satellite meeting (Time: Morning, Location: tba)
DESY | XPCS at PETRA IV: Present Status and Future Upgrade Plans for Coherent Application Beamline P10 (Time: Morning, Location: tba)
DESY | SAXY/WAXS/GISAXS @ DESY (Time: Full day, Location: tba)
European XFEL | Twin bunch mode for DAC experiments at HED-HIBEF (Time: Morning, Location: European XFEL, Holzkoppel 4, 22869 Schenefeld)
European XFEL | HED-HIBEF satellite meeting: Instrument updates and science highlights (Time: Afternoon, Location: European XFEL, Holzkoppel 4, 22869 Schenefeld)
DESY | 16th Workshop on X-Ray Nano-Imaging of Biological and Chemical Systems at PETRA III (Time: Afternoon, Location: tba)
Hereon | Helmholtz-Zentrum Hereon GEMS Outstation: Materials Research and High-Resolution Imaging (Time: Afternoon, Location: t.b.a)
Thursday, 29 January 2026
European XFEL | Ultrafast X-ray scattering with Large Pixel Detector: status and perspectives (Time: Full day, Location: European XFEL, Holzkoppel 4, 22869 Schenefeld)
European XFEL | X-ray Probing of ULtrafast Stochastic Events (Time: Afternoon, Location: European XFEL, Holzkoppel 4, 22869 Schenefeld) - Invitation only
European XFEL | Enhancing UX in X-ray Optics: Simulations including AI-driven Applications (Time: Full day, Location: European XFEL, Holzkoppel 4, 22869 Schenefeld) - 1st day
DESY | Virtual Diagnostics (Time: Full Day, Location: tba)
DESY | Molecular Science at FLASH (Time: 14.00 - 18.30, Location: tba)
Friday, 30 January 2026
European XFEL | Enhancing UX in X-ray Optics: Simulations including AI-driven Applications (Time: Morning, Location: European XFEL, Holzkoppel 4, 22869 Schenefeld) - 2nd day
Detailed overview
Friday, 23 January 2026
European XFEL:
European XFEL data Workshop
Organizers: Luca Gelisio (EuXFEL), Krzysztof Wrona (EuXFEL)
Time: 10:30 - 17:00
Location: Zoom
Type: Virtual Event
Abstract:
Join our workshop to discuss how to efficiently manage and analyze data at European XFEL.
You'll learn which tools, processes, and experiences from your peers can directly improve your results.
If you would like a particular topic to be discussed, contact us at da@xfel.eu.
More information available at: https://indico.desy.de/e/data_2026
Monday, 26 January 2026 - Friday 30 January 2026
European XFEL & DESY & EMBL:
MX satellite meeting
Abstract:
The satellite is targeted to all current and future users of the MX beamlines and connecting facilities at DESY & EMBL and the facilities of the XFEL connecting to life science. In between the plenary sessions of the Joint DESY and XFEL Users Meeting, we have a series of practicals and talks organized in our facilities as participating workshop to ‘MX satellite meeting’. This includes serial synchrotron crystallography (SSX) sample preparation in the EMBL/SPC facility, demo of crystallization plate preparation and crystal harvesting with OLTShifter jointly by EMBL/SPC and P11, SSX demo at P11, facility and science talks in a joint session, single crystal demos at P11 and P14. Q&A on how to make best of the MXCuBE and ISPyB installations at P11 is included.
DESY & European XFEL:
Prospects of Momentum Microscopy at PETRA III, FLASH, and EuXFEL
Organizers: Sergii Chernov (DESY), Dima Kutnyakhov (DESY), Markus Scholz (DESY), Manuel Izquierdo (EuXFEL), Maria Peter (EuXFEL)
Time: Full day
Location: European XFEL, Holzkoppel 4, 22869 Schenefeld
Type: in-person event
Abstract:
Over the past few years, time-of-flight–based momentum microscopy has been established as a state-of-the-art technique at FLASH and PETRA III, and was recently implemented as a new experiment at the European XFEL. Our workshop will showcase these developments and prospects as well as provide a platform for scientific discussion and exchange within the (H)ARPES, XPS and (h)XPD communities.
DESY:
Community proposals at the seeded FLASH
Organizers: Markus Guehr
Time: Afternoon
Location:
Type:
Abstract:
FLASH has been undergoing a significant upgrade with the FLASH2020+ project, resulting in an externally seeded FLASH1 free electron laser branch. The externally seeded operation at a high repetition rate, up to an effective repetition rate of 8 kHz, positions FLASH at a unique place in the international FEL landscape. The increased longitudinal coherence, spectral stability, and high average spectral flux are ideal for advanced ultrafast and nonlinear X-ray probing of matter.
FLASH has started a process for community-driven experiments in the time interval after commissioning, before the start of normal peer-reviewed access mode. The experiments aim to demonstrate a particular capability of the new source, which is essential for your community.
In the AMO and condensed matter science areas, we have offered community experimental opportunities in the next ouple of months. The community proposals have been created and will be staged over the coming months. The FLASH team will give an update of the expected parameters from the new machine for those two communities.
In addition, we will stage breakout sessions for the chemistry and biology community, which are more demanding in machine parameters and thus will be staged after the AMO and condensed matter proposals.
DESY:
Temporally Coherent Synchrotron Light Sources
To explore advanced capabilities of state-of-the art light sources such as PETRA IV, explore synergies with FELs, and sketch the path towards the next generation of accelerator-based sources we are organizing a workshop on Temporally Coherent Synchrotron Light Sources. This workshop framed as a satellite event to the DESY/XFEL Users’ Meeting will bring together photon science, FEL and storage ring communities.
The workshop will be held at DESY on Jan 26-27th 2026:
Further information: https://indico.desy.de/event/51344/
European XFEL:
Satellite Workshop on Photon Diagnostics (XPD)
Organizers: Jan Grünert (EuXFEL), Joakim Laksman (EuXFEL)
Time: Afternoon
Location: European XFEL, Holzkoppel 4, 22869 Schenefeld
Type:
Abstract:
Photon diagnostics at X-ray Free-Electron Lasers is an essential ingredient for optimized machine performance and successful user experiments.
The task of photon-diagnostics is to provide real-time information on critical beam properties, including beam position, transverse spatial profile, pulse energy, spectral distribution, polarization, wavefront, pulse arrival time, temporal profile and coherence. Operators rely on this data for machine tuning and performance monitoring. Instruments and users depend on these measurements for data analysis and sorting.
A diverse array of advanced instrumentation and techniques must be applied to achieve these objectives.Our methods include non-invasive, gas-based photo-emission devices, partially and fully invasive crystal-based techniques, and the use of Machine Learning algorithms. The instrumentation contains ultrahigh-vacuum components, fast electronics, and specialized sensors and detectors.
This workshop provides a dedicated platform to share the latest progress and innovations in photon diagnostics for X-ray beam characterization, and to identify opportunities for new collaborations.
It will enable discussions on emerging novel methods and applications while providing an opportunity for operators and users to present their immediate needs and long-term requirements.
Tuesday, 27 January 2026
DESY:
Temporally Coherent Synchrotron Light Sources
ROCK-IT Project Meeting (Closed Session)
Organizers: Mehdi Kazemi, Alexander Schoekel
Time: Morning, 09:00 am - 12:00 noon
Location:
Type: Hybrid
Abstract:
"ROCK-IT (Remote, Operando-Controlled, Knowledge-driven, and IT-based) is a Helmholtz-funded project that aims to develop all the necessary tools for the automation and remote access of in situ and operando catalysis experiments at synchrotron radiation sources.
In this closed session, ROCK-IT project members will discuss their latest progress and exchange ideas for the further development and sustainability of the project outcomes."
Further information: https://indico.desy.de/event/50946/
Wednesday, 28 January 2026
European XFEL:
Pump-Probe lasers 2030+
Organizers: Max Lederer (EuXFEL), Dimitrios Rompotis (EuXFEL), Ilie Radu (EuXFEL), Moritz Emons (EuXFEL), Matthew Robinson (EuXFEL), Michael Meyer (EuXFEL)
Time: 09:00-17:00
Location: European XFEL, Holzkoppel 4, 22869 Schenefeld
Type: Hybrid Meeting (in-person and Zoom)
Abstract:
Pump-probe (PP-) lasers, are vital for most time-resolved studies at the European XFEL. Since their installation in 2016, these lasers have operated successfully for seven instruments across three SASE beamlines and with over 95% uptime.
The EuXFEL strategy 2030+ includes plans for developments of future PP-lasers and secondary sources, such as attosecond pulses and new light sources in the THz and mid-infrared range.
In this workshop, we will present the 'Pump-probe lasers 2030+' program and discuss its planning status. We invite all EuXFEL instruments and external users to share their future needs for PP-lasers and secondary sources.
Twin bunch mode for DAC experiments at HED-HIBEF
Organizers: Ulf Zastrau (EuXFEL), Cornelius Strohm (DESY/EuXFEL)
Time: Morning
Location: European XFEL, Holzkoppel 4, 22869 Schenefeld
Type: Hybrid - Zoom and in-person meeting
Abstract:
HED-HIBEF satellite meeting: Instrument updates and science highlights
Organizers: Ulf Zastrau (EuXFEL), Carsten Baehtz (HZDR/EuXFEL)
Time: Afternoon
Location: European XFEL, Holzkoppel 4, 22869 Schenefeld
Type: Hybrid - Zoom and in-person meeting
Abstract: -
DESY:
DAHNE4NFDI satellite meeting: Making Photon and Neutron Data FAIR and Ready for Machine Learning
Organizers:
Time: Morning, 09:00 am - 12:00 noon
Location:
Type: Hybrid
Abstract: -
XPCS at PETRA IV: Present Status and Future Upgrade Plans for Coherent Application Beamline P10
Organizers: Felix Lehmkuehler (DESY),Wojciech Roseker (DESY), Fabian Westermeier (DESY)
Time: Morning
Location:
Type:
Abstract:
This workshop presents the current status of XPCS at the Coherence Applications Beamline P10 and beyond, highlights some technical developments, and shows experiments & results.
The exciting perspective of XPCS at PETRA IV will be discussed, and the workshop aims to give room for active exchange and discussion.
SAXY/WAXS/GISAXS @ DESY
Organizers: Stephan Roth (DESY) , Sarathlal Koyiloth Vayalil (DESY)
Time: Full Day
Location:
Type:
Abstract:
The workshop addresses current and potential users of small-angle X-ray scattering at PETRA III. This encompasses thin films and GISAXS, in situ and operando studies, reflectometry, tomography as well as advanced data analysis, e.g. using machine learning. This workshop is intended to present and discuss the status and perspectives of the current and future experimental facilities in this field at DESY and recent as well as planned user activities. It shall foster communication among the users and identify common interests.
16th Workshop on X-Ray Nano-Imaging of Biological and Chemical Systems at PETRA III
Organizers: G. Falkenberg, F. Westermeier, C.G. Schroer Contact: gerald.falkenberg@desy.de
Time: Wed, 28 January 2026 13:00 - 17:00
Location:
Type:
Abstract:
The workshop gives attention to x-ray microscopy at various PETRA III beamlines with special emphasis on applications in biology and chemistry. Several scientific (multimodal) X-ray imaging highlights are presented with focus on the scanning X-ray microscopy beamlines P06, P10 and P05. Participants are encouraged to discuss future scientific opportunities for nano-imaging experiments at PETRA III and PETRA IV.
The main part of the workshop is dedicated to presentations from our user community introducing the frontiers of data analysis to encourage lively discussions.
HEREON:
Helmholtz-Zentrum Hereon GEMS Outstation: Materials Research and High-Resolution Imaging
Organizers: Chr. Krywka, P. Staron,
Time: Afternoon
Location: CXNS Seminarraum (O1.104 Geb 94)
Type:
Abstract:
Helmholtz-Zentrum Hereon operates the research platform GEMS with an outstation at DESY, running beamlines and instruments with a focus on engineering materials research and high resolution imaging techniques. On the 2026 satellite meeting, the status of the Hereon beamlines and future perspectives are reported and users will present recent research highlights.
Thursday, 29 January 2026
European XFEL:
Ultrafast X-ray scattering with Large Pixel Detector: status and perspectives
Organizers: Dmitry Khakhulin (EuXFEL), Hazem Yousef (EuXFEL), Diana Bregenholt-Jakobsen (EuXFEL), Maria Peter (EuXFEL)
Time: Full day
Location: European XFEL, Holzkoppel 4, 22869 Schenefeld
Type: in-person event
Abstract:
After over 8 years of operation the Femtosecond X-ray Experiments (FXE) instrument has accommodated a number of successful experiments using standard setups as well as installations under development. Approximately half of these experiments took advantage of the specially built MHz Large Pixel Detector (LPD) to perform femtosecond scattering and diffraction measurements at various conditions including (sub)MHz repetition rates, high energy photons and with signals requiring high dynamic range detection.
The range of experimental techniques employed at FXE using LPD currently comprises ultrafast Wide-angle X-ray scattering (WAXS) in solution, Serial Femtosecond Crystallography (SFX) on proteins and small molecules, X-ray Powder Diffraction (XPD), and, recently, an attempt of Pair Distribution Function analysis (PDF). Such measurements enable pump-probe ultrafast studies on multiscale structural dynamics accompanying various fundamental processes such as photochemical reactions, phase transitions and collective lattice excitations in materials.
In the Satellite Workshop for EuXFEL Users’ Meeting 2026 entitled “Ultrafast X-ray scattering at FXE with Large Pixel Detector: status and perspectives” we aim at presenting current instrument status, capabilities of LPD-based setups as well as recent results of relevant successful user experiments in order to inform and further attract targeted scientific communities. The second central goal of the Workshop is to collect and discuss specific experimental experiences and limitations at FXE as well as to initiate an exchange on potential improvements and developments addressing the most exciting scientific cases.
X-ray Probing of ULtrafast Stochastic Events (on Invitation only)
Please contact patrik.vagovic@xfel.eu in case of legitimate interest.
Organizers: Patrik Vagovic (EuXFEL)
Time: Afternoon
Location: European XFEL, Holzkoppel 4, 22869 Schenefeld
Type: in-person event
Abstract:
X-PULSE is a pan-European initiative formed to design, operate and further develop the first dedicated platform for ultrafast, full-field X-ray imaging of non-reproducible, stochastic events.
This meeting is by invitation only.
Enhancing UX in X-ray Optics: Simulations including AI-driven Applications
Organizers: Liubov Samoylova (EuXFEL), Maurizio Vannoni (EuXFEL), Harald Sinn (EuXFEL)
Time: Full day on Thursday and half day (morning) on Friday
Location: European XFEL, Holzkoppel 4, 22869 Schenefeld
Type:
Abstract:
The aim of the workshop is to present and discuss the latest developments in X-ray optics simulations, offering practical support to the XFEL and SRS communities in designing and specifying advanced devices for intense, coherent FEL radiation, as well as in upgrading modern SRS facilities.
The program will also feature a roundtable discussion on future plans for the SIM-XX (SIMulations in X-ray optics eXchange) platform, which serves as a communication and collaboration hub for experts and advanced users worldwide. The platform enables information exchange, coordination of research efforts, and continued progress in the field of X-ray optics simulations.
DESY:
Virtual Diagnostics
Organizers: Raimund Kammering, Kai Tiedtke, Sergey Tomin
Time: Full day
Location:
Type:
Abstract:
Building on the success of previous editions, this one-day collaborative workshop explores cutting-edge virtual diagnostics—leveraging modern computing techniques (AI/ML, high-fidelity simulations, and real-time data integration) to deepen our understanding and improving the operation of complex accelerator, synchrotron and FEL facilities.
Key topics include:
• AI-driven fidelity augmentation of photon and electron diagnostics (e.g., high-repetition-rate photoelectron spectra, streaking-cavity-based energy loss measurements).
• Full FEL/AI models as a foundation for virtual diagnostics, enabling rapid simulation of photon pulses and electron beam properties.
• Predictive machine learning for real-time photon pulse properties (e.g., in the time domain) using online diagnostic inputs.
• Integration of virtual diagnostics into machine operation, bridging simulations and experimental data for adaptive control.
• Automated pipelines for online analysis, from passive/active streaking cavity data to single-shot X-ray power profiles.
The workshop aims to foster cross-disciplinary collaboration among experts in accelerator physics, photon science, AI/ML, and diagnostics, to accelerate the deployment of virtual tools for existing and next-generation facilities.
Molecular Science at FLASH
Organizers: Markus Guehr
Time: 14 - 18.30
Location: tba
Type: on-site
Abstract:
FLASH provides unique opportunities for the molecular science community by offering ultrashort X-ray pulses that span a broad energy range from the extreme ultraviolet to soft X-rays up to 900 eV. This radiation serves as a powerful probe for valence and core-level spectroscopy, enabling element- and site-specific investigations of molecules. In addition, the pulses serve to excitate molecular dynamics via deep valence or core levels. When combined with synchronized optical lasers and THz sources, FLASH allows scientists to gain deep insights into the evolution of electronic structures during molecular processes.
Currently, established research communities at FLASH are exploring areas such as photo- and astrochemistry of gas-phase molecules, explore its limits at the few fs scale, perform fundamental studies in surface catalysis, and study molecules in liquid environments. Looking ahead, promising extensions into ground state chemistry, interfacial chemistry and biomolecular dynamics in ion traps are on the horizon, particularly considering the significant investments in the highly stable and coherent seeded FLASH1 source.
The goal of this workshop is to connect FLASH scientists with researchers from the broader molecular user community, promote various ultrafast molecular techniques available at FLASH, and foster the exploration of new scientific approaches.
Friday, 30 January 2026
European XFEL:
Enhancing UX in X-ray Optics: Simulations including AI-driven Applications
Information: Meeting Continuation, for more information on this Satellite Meeting please see the information provided under Thursday, 29 January 2026 / European XFEL
