XAFS50.FR

5 Oct 2026, 13:30 → 9 Oct 2026, 18:00 Europe/Paris

Synchrotron SOLEIL

50 Years of XAFS Adventure in France: From the Pioneers of LURE to 4th-Generation Sources

The XAFS50.FR conference will take place at SOLEIL from October 5 to 9, 2026.

How can we observe the environment around atoms ? Over the past 50 years, XAFS (X-ray Absorption Fine Structure) spectroscopy has attracted researchers from every field thanks to its atomic and orbital selectivity combined with high sensitivity, offering unique access to the structural and electronic properties of materials.

Developed in parallel with major advances in synchrotron radiation, XAFS has established itself step by step, becoming an essential tool for many scientific communities as well as for industry, and is now even beginning to appear as a laboratory-based technique with commercial spectrometers.

The XAFS50.FR event will bring together historical insight and scientific perspectives, highlighting the pioneering experiments carried out at LURE (ACO, DCI, Super-ACO), the development of formalisms and the standardization of analyses, and the current progress at SOLEIL and the 4th generation source ESRF-EBS — a development that SOLEIL-II will soon join.

 

Book of abstracts XAFS50_abstracts-book.pdf

Programme XAFS50.FR - Programme.pdf

Template abstract Template abstracts workshop.doc

Tutorials Fastosh Tutorial-XAFS50_GLandrot_Fastosh.pdf FDMNES Tutorial_XAFS50_YvesJoly.pdf

Monday 5 October

13:30 → 13:55 Registration

13:55 → 14:00 Welcome

Conveners: Delphine VANTELON (SOLEIL), Valerie BRIOIS (SOLEIL)

14:00 → 14:35 .: Les dix premières années de l'EXAFS à LURE

Conveners: Denis RAOUX, Pierre LAGARDE

14:35 → 15:10 .: XAFS de surface et XAFS dispersif ; l'usage essentiel de la polarisation du photon dans le champ naissant des interfaces et multicouches

Conveners: Alain FONTAINE, Dominique CHANDESRIS

15:10 → 15:27 .: XAFS in France before synchrotron facilities

Convener: Christian BROUDER

15:27 → 15:45 .: Apprendre à se connaître : Rayonnement synchrotron et sciences de la Terre à la fin du XXe siècle

Convener: Georges CALAS (Sorbonne Université)

15:45 → 16:00 .: First in situ XAFS investigation of the electrochemical interface, DCI/LURE 1991

Convener: Abderrahmane TADJEDDINE (Institut de Chimie Physique UMR8000)

16:00 → 16:30 Coffee break

16:30 → 17:05 .: La spectroscopie d’absorption sous pression : une spécialité française, du LURE à SOLEIL en passant par l’ESRF et SLS

Conveners: Alain POLIAN (SOLEIL), Jean-Paul ITIE (SOLEIL)

17:05 → 17:40 .: Chemistry & XAFS@LURE at the edge of the 80s, Science, People, Driving Concepts

Conveners: Christophe CARTIER DIT MOULIN, Françoise VILLAIN, Michel VERDAGUER

17:40 → 18:15 .: The Journey of XAFS beamlines from the 1st to the 4th generation of Synchrotron Radiation Facilities

Conveners: Jean DAILLANT, Michele SAUVAGE (SOLEIL)

Tuesday 6 October

09:00 → 09:05 Introduction

Conveners: Delphine VANTELON (SOLEIL), Valerie BRIOIS (SOLEIL)

09:05 → 10:00 Plenary Lecture: XAFS Theory: 50 Years of Breakthroughs

Convener: John REHR

09:05 XAFS Theory: 50 Years of Breakthroughs

Speaker: John REHR

EXAFS50FR-JohnRehr.docx

10:00 → 10:35 Invited talk: XAS utilization in glass studies : potentialities, difficulties and blind corners

Convener: Stéphanie ROSSANO

10:00 XAS utilization in glass studies: potentialities, difficulties and blind corners

Speaker: Stéphanie ROSSANO

XAFS50_Rossano.docx

10:35 → 11:00 Coffee break

11:00 → 11:35 Invited talk: X-ray Spectroscopy at the European X-ray Free Electron Laser

Convener: Sakura PASCARELLI

11:00 X-ray Spectroscopy at the European X-ray Free Electron Laser

Speaker: Sakura PASCARELLI

pascarelli XAFS50.doc

11:35 → 11:53 Oral Communication: First-principles XANES calculations within the pseudopotential framework: 17 years of XSpectra

Convener: Delphine CABARET (Sorbonne Université - IMPMC)

11:35 First-principles XANES calculations within the pseudopotential framework: 17 years of XSpectra

Speaker: Prof. Delphine CABARET (Sorbonne Université - IMPMC)

abstract_Cabaret.docx

11:53 → 12:29 Invited talk: XAFS in liquids and disordered systems: early and recent advances from LURE times to today

Convener: Andrea DI CICCO (Università di Camerino)

11:53 XAFS in liquids and disordered systems: early and recent advances from LURE times to today

Speaker: Andrea DI CICCO (Università di Camerino)

abstractADC_xafs50.docx

12:30 → 14:00 Lunch

14:00 → 15:30 Oral Communication: Session Catalysis

14:00 Catalyst Design Guided by XAS Spectroscopy

Speaker: Xavier CARRIER (Sorbonne Université)

Abtsract_Carrier_XAFS50.pdf

14:18 XAS's contribution to IRC(IRCELYON) research in the field of catalysis

Speaker: christophe GEANTET (CNRS)

abstracts_GEANTET XAFS50.pdf

14:36 Operando XAFS Reveals Interfacial Redox Chemistry of Supported Metal Catalysts as the Switch Descriptor Between Base- and Tip-Growth Carbon Filaments During Catalytic Methane Splitting

Speaker: Wilson HENAO (Instituto de Tecnología Química (ITQ))

Abstract_Wilson_Henao_XAFS50-FR.docx

14:54 Combined XAFS/DRIFTS/MS : a powerful technique for operando catalysts investigations

Speaker: Davide SALUSSO (ESRF)

Abstract_Salusso.docx

15:12 Monitoring the Formation of a Single-Atom Catalyst with Operando Quick XAFS

Speaker: Franck MORFIN

XAFS50_Piccolo_final.pdf

14:00 → 15:30 Oral Communication: Session Disordered Materials & Cultural Heritage

14:00 Local Structure in Silicate Glasses and Melts at Extreme Conditions

Speaker: Max WILKE (Universität Potsdam)

WIlkeXAFS50FR.docx

14:18 From liquid to solid: The contribution of XANES at the structure and properties of glasses and melts.

Speaker: daniel NEUVILLE (IPGP CNRS)

2027-XAFS-SOLEIL.docx

14:36 Comparative Pt L₃-edge XAS study of Pt nanoparticles with different morphologies in solution and tumor cells

Speaker: Mr RAÚL MAGRO HERNÁNDEZ

Abstract_XAFS50.pdf

14:54 XAFS to study Cultural Heritage Metallic Materials

Speaker: Solenn REGUER (SOLEIL)

Solenn_Reguer_XAFS50_abstract.docx

15:12 Harnessing X-rays to Reveal Historical Productions in Late Iron Age Britain

Speaker: Susan NEHZATI (Diamond Light Source)

Abstract_SNehzati.docx

15:30 → 15:55 Coffee break

15:55 → 16:30 Invited talk: Evolution of Synchrotron XAS for Heterogeneous Catalysis : From early studies to operando strategies and data analysis, at IFPEN

Convener: Christele LEGENS (IFP Energies nouvelles)

15:55 Evolution of Synchrotron XAS for Heterogeneous Catalysis: From early studies to operando strategies and data analysis, at IFPEN

Speaker: Christele LEGENS (IFP Energies nouvelles)

Abstract_XAS50_Legens.docx

16:30 → 16:40 Meet our sponsors and exhibitors: Advanced Detection Solutions for Synchrotron Applications by Greateyes

Convener: Fenton MANN (GreatEyes)

16:40 → 16:50 Meet our sponsors and exhibitors: Iliad: A Next-Generation EELS Platform for X-ray Absorption Spectroscopy–Like Information in the TEM by Thermofisher

Convener: Arno MEINGAST (Thermo Fisher Scientific)

16:50 → 17:00 Meet our sponsors and exhibitors: Dispersive Lab-based X-ray Spectrometers from LynXes

Convener: Zoltán NÉMETH (LynXes Innovation Kft.)

17:00 → 17:10 Meet our sponsors and exhibitors: ANR PEPR DIADEM

17:10 → 17:20 Meet our sponsors and exhibitors: PEPR LUMA

17:20 → 17:30 Meet our sponsors and exhibitors: DIM MaTerRe

17:30 → 17:40 Meet our sponsors and exhibitors: DIM PAMIR

17:40 → 18:30 Poster session

18:30 → 23:00 Conference diner at La Coupole

18:30 Meeting in front of the SOLEIL’ reception building
18:40 - Bus departure in front of the SOLEIL’ reception building
20:00 - Meeting at La Coupole Restaurant

Wednesday 7 October

09:00 → 09:05 Introduction

Conveners: Delphine VANTELON (SOLEIL), Valerie BRIOIS (SOLEIL)

09:05 → 10:00 Plenary Lecture: Simulating X-ray Absorption Spectroscopies Can Be Useful

Convener: Yves JOLY (Université Grenoble Alpes, CNRS, Institut Néel)

09:05 Simulating X-ray Absorption Spectroscopies Can Be Useful

Speaker: Yves JOLY

Abstracts_XAFS50_YvesJoly.docx

10:00 → 10:35 Invited talk: X-ray Spectromicroscopy or Microspectroscopy? A Methodological Perspective

Convener: Jean SUSINI (Synchrotron SOLEIL)

10:00 X-ray Spectromicroscopy or Microspectroscopy? A Methodological Perspective

Speaker: Dr Jean SUSINI (Synchrotron SOLEIL)

Abstract_XAS50_Susini.docx

10:35 → 11:00 Coffee break

11:00 → 12:30 Oral Communication: Session Energy Related Materials

11:00 From Ex Situ to Operando Soft X-rays Microscopy of Photoactive Materials: Case of Hematite-based Photoanodes

Speaker: Stefan STANESCU (SOLEIL)

2026-XAFS_workhop_SOLEIL_Stanescu.pdf

11:18 Operando XAS Strategies for Rational Design of Electrochemical Energy Materials

Speaker: Francesco PAPARONI (SOLEIL)

Abstract_50anniXAFSFR.doc

11:36 Tuning Redox Chemistry in Gd-Doped Ceria: Gd-Driven Suppression of Ce³⁺ Formation in Reducing Condition.

Speaker: alessandro LONGO

oral_AL.docx

11:54 The Optical Dispersive EXAFS (ODE) Beamline at Soleil Synchrotron and Its Studies

Speaker: Qingyu KONG (SOLEIL)

ODE-dispersive-XAS.pdf

12:12 Combined Operando XRD And XAS Study Of Electrochemically Active Li2MChO Anti-perovskites

Speaker: Mikhail GORBUNOV (Karlsruhe Institute of Technology)

XAFS50_Gorbunov.doc

11:00 → 12:30 Oral Communication: Session Geosciences Part I

11:00 Coupling High-Energy Resolution Fluorescence Detected X-ray Absorption Spectroscopy (HERFD-XAS) with microfluidic cells for in situ monitoring of tungsten nanoparticles redox transformation

Speaker: melanie AUFFAN (CEREGE CNRS)

Auffan_W.pdf

11:18 Vanadium enrichment in lateritic soils: mineralogical and pedoclimatic controls

Speaker: Myriam BOUDIEB

abstract_XAFS50_boudiebmyriam.pdf

11:36 Redox speciation of cerium in the presence of colloids

Speaker: Terjini KITHTHANGODAGE

Terjini Kiththangodage-SOLEIL conference- 2026-Abstract.pdf

11:54 XAS Studies Of Metal Transport In Hydrothermal Fluids : Autoclaves And Photons.

Speaker: Denis TESTEMALE (Institut Néel - CNRS)

testemale_abstracts workshop_v2.pdf

12:12 Probing the Speciation of Transition Metals (Mo, W) in Hydrothermal Fluids by In-Situ XAS

Speaker: Maria KOKH (Institut für Geowissenschaften Universität Potsdam)

Kokh_et_al_Soleil_07072026.doc

12:30 → 14:00 Lunch

14:00 → 14:35 Invited talk: X-ray Absorption Spectroscopy: A Key to Deciphering and Optimizing Battery Materials

Convener: Laurence CROGUENNEC

14:00 X-ray Absorption Spectroscopy: A Key to Deciphering and Optimizing Battery Materials

Laurence Croguennec_Abstract.docx

Laurence Croguennec_Abstract.docx

14:35 → 14:53 Oral Communication: Understanding chemical bonds with valence RIXS

Convener: Oana BUNAU (European Synchrotron Research Facility)

14:35 Understanding chemical bonds with valence RIXS

Speaker: Oana BUNAU (European Synchrotron Research Facility)

XAFS50_2026.docx

14:53 → 15:11 Oral Communication: Orbital Engineering in Graphene/SiC: An ELNES and FDMNES Study

Convener: Vinod PAIDI (CNRS, INSA Lyon, UCBL, MATEIS, UMR 5510, 69621 Villeurbanne, Lyon, France)

14:53 Orbital Engineering in Graphene/SiC: An ELNES and FDMNES Study

Speaker: Dr Vinod Kumar PAIDI (CNRS, INSA Lyon, UCBL, MATEIS, UMR 5510, 69621 Villeurbanne, Lyon, France)

V_Paidi_XAFS_50_abstracts_Workshop.docx

15:11 → 15:29 Oral Communication: Unraveling Local Environment in Multicomponent Materials using Reverse Monte Carlo Simulations

Convener: Alexei KUZMIN (Institute of Solid State Physics of the University of Latvia)

15:11 Unraveling Local Environment in Multicomponent Materials using Reverse Monte Carlo Simulations

Speaker: Alexei KUZMIN (Institute of Solid State Physics of the University of Latvia)

XAFS50_FR_Abstract_Oral_communication_Alexei_Kuzmin.docx

15:29 → 15:47 Oral Communication: Multiple-Edge EXAFS/RMC Refinement for 3D Local Structure in SrTiO3

Convener: Andris ANSPOKS (Institute of Solid State Physics)

15:29 Multiple-Edge EXAFS/RMC Refinement for 3D Local Structure in SrTiO3

Speaker: Andris ANSPOKS (Institute of Solid State Physics)

XAFS50_FR_Oral_Abstract_Anspoks.docx

15:50 → 16:10 Coffee break

16:10 → 16:45 Invited talk: Dichroisms at LURE and SOLEIL

Convener: Philippe SAINCTAVIT (CNRS)

16:10 Dichroisms at LURE and SOLEIL

Speaker: Philippe SAINCTAVIT (CNRS)

Abstract_Sainctavit.docx

16:45 → 17:03 Oral Communication: Introducing « FITNESS »: a new program, built-in to Fastosh, to efficiently perform shell-by-shell fitting of the EXAFS

Convener: Gautier LANDROT (SOLEIL)

16:45 Introducing « FITNESS »: a new program, built-in to Fastosh, to efficiently perform shell-by-shell fitting of the EXAFS

Speaker: Gautier LANDROT (SOLEIL)

Abstract Landrot.doc

17:03 → 17:21 Oral Communication: From Monometallic to Bimetallic NiCo/SiO₂: Element-Resolved Active-Site Identification by Operando XAS and MCR-ALS

Convener: Shuchi ZHANG (Eindhoven University of Technology)

17:03 From Monometallic to Bimetallic NiCo/SiO₂: Element-Resolved Active-Site Identification by Operando XAS and MCR-ALS

Speaker: Shuchi ZHANG (Eindhoven University of Technology)

Abstract manuscript for XAFS 50.docx

17:21 → 17:39 Oral Communication: Resolving the "Coloring Problem" in Crystallography: The Synergistic Power of EXAFS and Resonant Diffraction

Convener: Carmelo PRESTIPINO (CRISMAT)

17:21 Resolving the "Coloring Problem" in Crystallography: The Synergistic Power of EXAFS and Resonant Diffraction

Speaker: Carmelo PRESTIPINO (CRISMAT)

EXAFS50.docx

17:39 → 17:57 Oral Communication: EXAFS Unbound: Unlocking Atomic Scale Insights Beyond The Next Edge

Convener: RENE BES (University of Helsinki)

17:39 EXAFS Unbound: Unlocking Atomic Scale Insights Beyond The Next Edge

Speaker: RENE BES (University of Helsinki)

XAFS50_abstract_ExtendedEXAFS.docx

17:57 → 18:20 .: Hommage à Alain Michalowicz / In Memoriam Prof. Alain Michalowicz

Conveners: Emiliano FONDA (Synchrotron SOLEIL), Karine PROVOST

18:20 → 19:50 Poster session: Aperitif

Thursday 8 October

09:00 → 09:05 Introduction

09:05 → 10:00 Plenary Lecture: XAS Data Analysis in the Era of Machine Learning

Convener: Janis TIMOSHENKO

09:05 XAS Data Analysis in the Era of Machine Learning

Speaker: Janis TIMOSHENKO (Interface Science Department of Fritz Haber Instiute of Max Planck Society, Faradayweg 4-6, Berlin 14195)

XAFS50_wokshop_SOLEIL_abstract.doc

10:00 → 10:35 Invited talk: Tracing cadmium from soil to foodstuff using X-ray techniques

Convener: Geraldine SARRET (CNRS)

10:00 Tracing cadmium from soil to foodstuff using X-ray techniques

Speaker: Geraldine SARRET (CNRS)

Sarret _abstract_Workshop.docx

10:35 → 11:00 Coffee breaks

11:00 → 12:30 Oral Communication: Session Chemistry

11:00 Unraveling the fate of anticancer gold complexes in cells through HERFD-XAFS

Speaker: Tom LACOMA (Sorbonne Université)

Abstract_XAFS50_v1.pdf

11:18 A short retrospective of actinide hexacyanoferrate exploration initiated at LURE

Speaker: Christophe DEN AUWER (Université Côte d'Azur)

abstracts_CDA_XAFS50.pdf

11:36 Magnetic hyperthermia at the nanoscale

Speaker: Jerome FRESNAIS (CNRS - Laboratoire PHENIX)

Fresnais abstract XAFS50.pdf

11:54 Understanding Nanoparticles Formation mechanisms at ITODYS Laboratory: Insights from investigations at ROCK Beamline.

Speaker: Marion GIRAUD (ITODYS, Université Paris Cité)

Template_abstracts_Workshop_XAFS50_Giraud_Sicard_V2.pdf

12:12 Time- and Space-Resolved Formation Stannosilicates by in situ XAS

Speaker: Aram BUGAEV (Paul Scherrer Institute)

abstract_XAFS.50.fr.docx

11:00 → 12:30 Oral Communication: Session Geosciences Part II

11:00 Redox speciation of contaminants at magnetite surface

Speaker: Dr Rémi MARSAC (Institut de physique du globe de Paris - CNRS)

Résume pour XAFS50 RM.docx

11:18 Mineralogical Controls on the Fate of Emerging Contaminants in Laterites Revealed by XAFS

Speaker: Quentin BOLLAERT (SOLEIL)

bollaert_abstract_XAFS50.docx

11:36 Thermal transformation of clay minerals probed by in situ soft-X-ray absorption spectroscopy

Speaker: Erwan PAINEAU (Laboratoire de Physique des Solides - CNRS)

Abstract_XAFS50_paineau.pdf

11:54 Assessing the Sensitivity of X-ray Absorption Spectroscopy to Distinguish Various Forms of Nucleic Acids and Their Surface Structures on Imogolite Nanotubes

Speaker: jerome ROSE (CNRS CEREGE)

Rose_Workshop_XAS50_26.docx

12:12 X-RAY ABSORPTION SPECTROSCOPY IN SURFACE SCIENCE ON LUCIA

Speaker: Nicolas TRCERA (Synchrotron SOLEIL)

abstracts_TRCERA.docx

12:30 → 14:00 Lunch

14:00 → 14:35 Invited talk: XAFS and nuclear fuels

Convener: Philippe MARTIN

14:00 XAFS and nuclear fuels

Ph. Martin - abstract XAFS50.pdf

14:35 → 14:53 Oral Communication: Beyond XAS with RIXS

Convener: Jean-Pascal RUEFF (SOLEIL)

14:35 Beyond XAS with RIXS

Speaker: Jean-Pascal RUEFF (SOLEIL)

Abstract_RUEFF_XAS50.docx

14:53 → 15:11 Oral Communication: Study of the genesis of HDS catalysts by in situ photon in photon out spectroscopy

Convener: Sylvain CRISTOL (université de lille)

14:53 Study of the genesis of HDS catalysts by in situ photon in photon out spectroscopy

Speaker: Sylvain CRISTOL (université de lille)

abstract xas50 scristol.pdf

15:11 → 15:29 Oral Communication: Understand 4f covalency by ab initio calculated RIXS plane

Convener: Sihan ZHANG (ESRF)

15:11 Understand 4f covalency by ab initio calculated RIXS plane

Speaker: Sihan ZHANG (ESRF)

XAFS50-Sihan.docx

15:29 → 15:47 Oral Communication: Tender X-ray photon-in/photon-out spectroscopy at ESRF ID26

Convener: Pieter GLATZEL (ESRF)

15:29 Tender X-ray photon-in/photon-out spectroscopy at ESRF ID26

Speaker: Pieter GLATZEL (ESRF)

XAFS50_2026_Glatzel_tender.docx

15:50 → 16:10 Coffee break

16:10 → 16:45 Invited talk: Multi-scale characterization of environmental colloidal materials

Convener: Laurent MICHOT (PHENIX)

16:10 Multi-scale characterization of environmental colloidal materials

Speaker: Laurent MICHOT (PHENIX/SU/CNRS)

Michot_abstract.docx

16:45 → 18:00 Oral Communication

16:45 Developments of the setup for pump-probe X-ray absorption fine structure (XAFS) and a capability of EXAFS at FXE instrument, European XFEL

Speaker: Yohei UEMURA (European XFEL)

XAFS50_abstracts.docx

17:03 FAME-PIX: The Pioneering French High-Resolution Hyperspectral 3D X-Ray Microscope at the ESRF

Speaker: Dr Julio Cesar DA SILVA (CNRS Institut NÉEL)

abstractXAFS50_Ptycho_oral.pdf

17:21 Operando Spatio-Temporal Study of CO oxidation reaction in Pd Catalysts using Full-Field Hyperspectral XAS imaging

Speaker: Marlon MUNIZ DA SILVA (CNPEM - Sirius)

XAFS_Soleil_Marlon_Final.pdf

17:39 X-ray Absorption Spectroscopy meets Imaging to Unveil Inclusion Puzzles in Deep Diamonds

Speaker: HELIO TOLENTINO (LNLS/CNPEM)

XAFS50 workshop SOLEIL - HELIO TOLENTINO.docx

18:00 → 18:10 Conclusion & Goodbyes

Friday 9 October

09:25 → 09:30 Introduction

Conveners: Delphine VANTELON (SOLEIL), Valerie BRIOIS (SOLEIL)

09:30 → 12:00 Fastosh Tutorial: Simulation of EXAFS: a live introduction to FITNESS, a new software built-in to Fastosh

09:30 Simulation of EXAFS: a live introduction to FITNESS, a new software built-in to Fastosh

Abstract_XAFS50_GLandrot_Fastosh_tutorial.docx

12:00 → 13:30 Lunch

13:30 → 16:30 FDMNES Tutorial: Simulation Of XANES Using The FDMNES Code

Convener: Yves JOLY (Université Grenoble Alpes, CNRS, Institut Néel)

Abstract_XAFS50_YvesJoly_FDMNES_tutorial.docx

13:30 Simulation Of XANES Using The FDMNES Code

Abstract_XAFS50_YvesJoly_FDMNES_tutorial.docx