20th SOLEIL USERS' MEETING - SUM2026
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Europe/Paris
Synchrotron SOLEIL
Synchrotron SOLEIL
Main building
Principal/0-0 - Salle Amphitheatre
Description
The 20th SOLEIL Users’ Meeting will take place from Thursday January 15th to Friday 16th, 2026 at SOLEIL.
A multidisciplinary satellite workshop "Radiation Damage" will be held on Wednesday 14th of January, 2026, at SOLEIL.
A satellite meeting for the french community of X-ray absorption spectroscopists will also be organised at SOLEIL on Friday 16th of January,2026, afternoon.
More information on website: SUM2026
Deadlines:
- Oral communication abstracts: November 10th, 2025, at noon
- Poster / Invited Talk / Plenary Talk abstracts: December 14th, 2025
- Registration: December 14th, 2025

CONTACT
Registration
Workshop "Radiation Damage" / 20th SOLEIL Users' Meeting 2026
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09:00
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09:30
Radiation damage satellite workshop: Registration – Welcome – Coffee
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09:30
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09:40
Radiation damage satellite workshop: Introduction to the workshopConvener: Amélie Bordage (ICMMO, CNRS)
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09:40
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10:25
Radiation damage satellite workshop: PLENARY TALK - A general introduction to radiation damage: Processes and quantificationConvener: Prof. Elspeth Garman (University of Oxford)
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10:25
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11:00
Radiation damage satellite workshop: PLENARY TALK - The different kinds of beam damages depending on who is speaking and looking / The European network for beam damages in CH (AIEA)Convener: Mathieu Thoury (CNRS)
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11:00
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12:30
Radiation damage satellite workshop: A multidisciplinary viewpoint to radiation damage
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12:30
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13:45
Lunch 1h 15m
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13:45
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14:30
Radiation damage satellite workshop: Introduction to round tableConveners: Maria Amelia Suzuki (Institute of Heritage Science-National Research Council (ISPC-CNR), Italy. & Nottingham Trent University, UK), Marine Cotte (ESRF)
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14:30
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16:00
Radiation damage satellite workshop: Interactive and multidisciplinary round tableConveners: Amélie Bordage (ICMMO, CNRS), Laurent TRANCHANT (SOLEIL)
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16:00
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16:30
Coffee break 30m
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16:30
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17:20
Radiation damage satellite workshop: TUTORIAL - The RADDOSE-3D software programConvener: Prof. Elspeth Garman (University of Oxford)
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17:20
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17:30
Radiation damage satellite workshop: Conclusion
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09:00
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09:30
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09:00
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10:00
Registration & coffee 1h
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10:00
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10:10
Welcome / Introduction, S2UO ChairConvener: Amélie Bordage (ICMMO, CNRS)
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10:10
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10:50
SOLEIL General Director talkConvener: Dr Jean SUSINI (Synchrotron SOLEIL)
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10:50
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11:35
PLENARY TALK: SOFT MATTER - Structure, properties and reactivity of oxide nanoparticles in solution : synchrotron studiesConvener: Matthieu Virot (ICSM, Univ Montpellier, CEA, CNRS, ENSCM, Marcoule, France)
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11:35
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12:05
SOLEIL Science Division talkConveners: Amina TALEB (SOLEIL), Eva PEREIRO (SOLEIL)
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12:05
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13:30
Lunch 1h 25m
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13:30
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14:00
PARALLEL SESSION - Biology and health: Polaris: latest trends and resultsConvener: Pierre-Damien Coureux (Université Paris-Saclay)
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13:30
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14:00
PARALLEL SESSION - Chemistry & Soft Matter: STXM as a tool for studying the morphology of organic semiconducting nanoparticles for energy applicationsConvener: Anne HEBRAUD
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13:30
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14:00
PARALLEL SESSION - Diluted matter: Structural characterization of alkene clusters by Synchrotron-based photoelectron spectroscopyConvener: Jérémy Bourgalais (CNRS)
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13:30
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14:00
PARALLEL SESSION - Geosciences / Environment / Cultural Heritage: Invisible metals, visible impacts: Geochemical dynamics and the environmentConvener: Alexandra COURTIN
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13:30
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14:00
PARALLEL SESSION - Physics & Advanced Materials: Structure and deep strain field of surface dislocations on Au(111)
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14:00
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15:40
PARALLEL SESSION - Biology and health: Oral Communications 1 to 4Conveners: Lorella Pascolo, Paloma FERNANDEZ VARELA (NOVALIX)
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14:00
Stuctural insights into tecovirimat antiviral activity and poxvirus resistance 25mSpeaker: Riccardo Vernuccio (Institut Pasteur)
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14:25
Tracing Metal Contaminants in Environmental Plastics pellets and Mammalian Tissues Using XRF Mapping at PUMA 25mSpeaker: Dr Alessandra Gianoncelli
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14:50
Probing the colloidal behavior of polysaccharides-degrading enzyme in a highly constrained model system 25mSpeaker: Hugo Voisin
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15:15
Small Angle X-ray Scattering Structural Characterization Of Quinones Oxidoreductases ζ-Crystallins Using SOLEIL Swing Beamline 25mSpeaker: Nicolas Mousnier (Centre de Recherche Paul Pascal CNRS UMR 5031)
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14:00
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14:00
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15:40
PARALLEL SESSION - Chemistry & Soft Matter: Oral communications 1 to 4 BLOCH Auditorium (CEA)
BLOCH Auditorium
CEA
Conveners: Amélie Bordage (ICMMO, CNRS), Luis Cardenas (IRCELYON Institut de recherches sur la catalyse et l’environnement), asma tougerti (Université de Lille)-
14:00
Revealing the mechanisms of enhanced Photo-Electrocatalytic OER performance of Ni doped maghemite via operando XAFS 25mSpeaker: Francesco PAPARONI (SOLEIL)
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14:25
Comparison of STXM and SXP for the Morphological Study of Organic Semiconducting Nanoparticles Used for Hydrogen Production 25mSpeaker: Sufal SWARAJ (Synchrotron SOLEIL)
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14:50
Tracking Hydrogen-Driven Structural Dynamics in Supported Pd Nanoparticles Using Full-Field Hyperspectral XAS Imaging 25mSpeaker: Marlon Muniz da Silva (CNPEM - Sirius)
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15:15
Fate of self-assembled squalene nanoparticles in a biomimetic medium assessed by scattering techniques 25mSpeaker: Hugo Roncin (NIMBE/CEA Paris-Saclay)
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14:00
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14:00
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15:40
PARALLEL SESSION - Diluted matter: Oral Communications 1 to 4Conveners: Helgi Hrodmarsson (Laboratoire Inter-Universitaire des Systemes Atmospherique), Pierre ASSELIN (CNRS)
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14:00
Tender X-ray Induced Fragmentation and Charge Release in Halogenated Radiosensitizers: a First Electron–Multi-Ion Coincidence Study 25mSpeaker: Oksana Travnikova (LCPMR)
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14:25
Quantitative FTIR spectroscopy of corrosive and unstable atmospheric gases: application to HNO3, HONO and HOBr 25mSpeaker: Alexandre VOUTE (SOLEIL)
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14:50
Gas-phase Interstellar Ion-Molecule Reactivity Driven by VUV Synchrotron Light 25mSpeaker: Corentin Rossi (ISMO, Université Paris-Saclay, CNRS)
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15:15
How do non-covalent interactions within small molecular cluster in the gas phase modify the ion molecule reactivity? 25mSpeaker: Lucas ALBOUY (Sorbonne Université - MONARIS)
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14:00
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14:00
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15:40
PARALLEL SESSION - Geosciences / Environment / Cultural Heritage: Oral Communications 1 to 4Conveners: Charlotte Catrouillet (IPGP), Simona Raneri
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14:00
Impact of redox conditions on the binding of redox-inert contaminants to magnetite 25mSpeaker: Dr Rémi Marsac (Institut de physique du globe de Paris - CNRS)
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14:25
Investigation of Iron and Copper Speciation : Deciphering the Green Colorations of Medieval Stained-glass Windows 25mSpeaker: Cecile Bretonnet
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14:50
Environmental degradation of plastics in soils: example of polypropylene alteration investigated by synchrotron-based GIXD and nano-CT 25mSpeaker: Quentin Bollaert (Synchrotron SOLEIL)
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15:15
Art Gets the Blues: Simple Colorimetric Tools for X-ray Dose Assessment 25mSpeaker: Alice Gimat (MNHN-CRC UAR 3224)
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14:00
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14:00
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15:40
PARALLEL SESSION - Physics & Advanced Materials: Oral Communications 1 to 4Conveners: Eglantine Boulard, Fabien Silly (CEA Saclay), Sara Gonzalez (Institut des Nanotechnologies de Lyon, CNRS UMR 5270)
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14:00
1s2p Resonant Inelastic X-ray scattering Natural Circular Dichroism 25mSpeaker: Mr Alessandro De Frenza (Sorbonne universite)
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14:25
Deep Learning Approach for Fixing Limited Angle Artefacts in Synchrotron X-Ray Tomography 25mSpeaker: Shyam PULICKAN (Synchrotron SOLEIL)
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14:50
Imaging the Indirect-to-Direct Band-Gap Crossover in PbI2 25mSpeaker: Marcin Rosmus (Université Paris-Saclay)
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15:15
Is there a Liquid-Liquid transition in realgar (As4S4) under Extreme Conditions? A Comprehensive Synchrotron study 25mSpeaker: Rajaji VINCENT (Institut de Minéralogie, de Physique des Matériaux et de Cosmochimie (IMPMC), Sorbonne Université, CNRS UMR 7590, MNHN, Paris, France)
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14:00
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15:40
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16:10
Coffee break 30m
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16:10
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16:40
PARALLEL SESSION - Biology and health: From tissue to trace: an elemental investigation of bromine in healthy and diseased ovarian tissueConvener: Anna Flamigni
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16:10
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16:40
PARALLEL SESSION - Chemistry & Soft Matter: Realistic catalysts at work: APXPS insights into surface transformation for sustainable energy applications
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16:10
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16:40
PARALLEL SESSION - Diluted matter: Usage of the AILES beamline in support of molecular radio astronomy
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16:10
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16:40
PARALLEL SESSION - Geosciences / Environment / Cultural Heritage: How Synchrotrons can help us understand the dangers of historical lead-based cosmetics
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16:10
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16:40
PARALLEL SESSION - Physics & Advanced Materials: Invited Talk 2Convener: Fabien Cheynis
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16:40
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18:20
PARALLEL SESSION - Biology and health: Oral communications 5 to 8Conveners: Lorella Pascolo, Paloma FERNANDEZ VARELA (NOVALIX)
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16:40
Detection of titanium dioxide particles in human, animal and infant formula milk 25mSpeaker: Anne Burtey (UMR 1313 Génétique Animale et Biologie Intégrative, INRAE)
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17:30
Mechanical Phenomena Occurring In Tissue During Subcutaneous Injections 25mSpeaker: Mr Aurélien Baquié (Nemera, SAINBIOSE INSERM U1059)
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17:55
Designing Cryo-Correlative Workflows: Understanding Radiation Damage Risks in HEK293-XpaQ 25mSpeaker: Harisa RISTA (SOLEIL)
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16:40
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16:40
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18:20
PARALLEL SESSION - Chemistry & Soft Matter: Oral Communications 5 to 8Conveners: Amélie Bordage (ICMMO, CNRS), Luis Cardenas (IRCELYON Institut de recherches sur la catalyse et l’environnement), asma tougerti (Université de Lille)
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16:40
Probing Protonation State Dependent Charge Transfer-to-Solvent in L-cysteine via Sulfur Kβ Valence-to-Core Resonant Inelastic X-ray Scattering 25mSpeaker: Sayantan Sarkar (LCPMR, Sorbonne Université)
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17:05
Strong Coupling Attraction in Nanoconfined Water Between Like-Charged Phospholipid Layers 25mSpeaker: Arnaud HEMMERLE (SOLEIL)
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17:30
Cation Ordering in Synthetic Stannoidite (Cu₈Fe₃Sn₂S₁₂) Revealed by Multiple-Edge Anomalous Diffraction 25mSpeaker: Carmelo Prestipino (CRISMAT)
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17:55
Operando Surface-Sensitive X-ray Scattering of Pd Nanoparticles for Selective NH₃ Oxidation 25mSpeaker: Alina VLAD (SOLEIL)
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16:40
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16:40
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18:20
PARALLEL SESSION - Diluted matter: Oral Communications 5 to 8Conveners: Helgi Hrodmarsson (Laboratoire Inter-Universitaire des Systemes Atmospherique), Pierre ASSELIN (CNRS)
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16:40
The importance of synchrotron spectroscopy in untangling the complex spectral patterns of deuterated methyl rotors. 25mSpeaker: Hayley Bunn (Max Planck Institute for Extraterrestrial Physics)
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17:05
Direct Experimental Evidence Of The Roaming Atom Mechanism In A Macromolecular Noncovalent Complex 25mSpeaker: Jean-Christophe POULLY (CIMAP Université de Caen)
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17:30
High-Resolution FTIR Spectroscopy of CH3F: Global Effective Hamiltonian Analysis of the Ground State and the 2ν3, ν3 + ν6, and 2ν6 Bands 25mSpeaker: Hazem ZIADI (Groupe de Spectrométrie Moléculaire et Atmosphérique (GSMA), UMR 7331 CNRS, Université de Reims Champagne-Ardenne)
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17:55
Rovibrational Analysis Of Cyclopentadiene Using ASAP And SOLEIL 25mSpeaker: Luis Bonah
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16:40
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16:40
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18:20
PARALLEL SESSION - Geosciences / Environment / Cultural Heritage: Oral Communications 5 to 8Conveners: Charlotte Catrouillet (IPGP), Simona Raneri
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16:40
Quantifying the Speciation of Sulfur and Associated Metals in Geological Fluids Using Synchrotron Spectroscopy 25mSpeaker: Dr Gleb Pokrovski (Géosciences Environnement Toulouse (GET), CNRS-University of Toulouse-IRD)
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17:05
Characterization of 19th and 20th century African glass beads using XRF band XAS spectroscopy 25mSpeaker: Laurent TRANCHANT (SOLEIL)
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17:30
Impact of different micro-organisms (bacteria, archaea) on the Platinum (Pt) speciation 25mSpeaker: Justine Le Doare (IPGP)
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17:55
Multi-scale synchrotron study of critical-metal phases by XRF and XANES spectroscopies 25mSpeaker: Georgia Grypaiou Iskenteridou (University Paris-Saclay)
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16:40
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16:40
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18:20
PARALLEL SESSION - Physics & Advanced Materials: Oral Communications 5 to 8Conveners: Eglantine Boulard, Fabien Silly (CEA Saclay), Sara Gonzalez (Institut des Nanotechnologies de Lyon, CNRS UMR 5270)
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16:40
Mechanical Strain Effects on the Magnetic Response of Ferromagnetic Thin Films on Polymer Substrates 25mSpeaker: Alejandro Toledano Povedano (Université de Poitiers)
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17:05
Correlating RIXS and EELS and XEOL spectroscopies in van der Waals materials 25mSpeaker: Alessandro NICOLAOU (SOLEIL)
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17:30
Structural And Electrical Characterization of Hf0.5Zr0.5O2 and ZrO2 Thin Films Using Grazing Incidence Synchrotron X-ray Diffraction 25mSpeaker: Grégoire Magagnin (Institut des Nanotechnologies de Lyon)
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17:55
In situ Synchrotron Study of the 1T′/1H Phase Transition in Colloidal WS2 Monolayers 25mSpeaker: Dario Mastrippolito (Synchrotron SOLEIL)
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16:40
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18:30
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20:00
The Synchrotron Community Posters session: (AFURS / GDR Coherex / Beamlines / Reciprocs Network / GDR XFEL) - Commercial Exhibitors / Aperitif
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20:00
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21:30
Diner 1h 30m
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21:30
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21:50
Bus transfer 20m
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09:00
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10:00
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09:45
PLENARY TALK: GEOSCIENCES - Structure Surface reactivity of tubular Al/Si nanoparticles: interactions with nucleic acids and implications for prebiotic scenariosConvener: jerome rose (CNRS CEREGE)
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09:45
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11:45
Scientific Posters session: and coffee break
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11:45
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12:00
Scientific Posters session: Award of the best student poster – Roger Fourme Prize and Conclusion
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12:00
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13:30
Lunch 1h 30m
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13:30
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13:35
TEA-XAS Meeting: Introduction
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13:30
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15:30
Visit of 3 Beamlines: DESIRS / PX1 / SIXS
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13:35
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14:35
TEA-XAS Meeting: Status and projects of the X-ray absorption beamlinesConveners: Delphine Vantelon (SOLEIL), Jean-Louis Hazemann (CNRS), Marine Cotte (ESRF)
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14:35
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14:45
TEA-XAS Meeting: Status of the project to unite the French community of X-ray absorption spectroscopistsConvener: Amélie Bordage (ICMMO, CNRS)
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14:45
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16:00
TEA-XAS Meeting: Interactive round tableConveners: Amélie Bordage (ICMMO, CNRS), Charlotte Catrouillet (IPGP)
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16:00
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16:05
TEA-XAS Meeting: Plenary discussion and conclusions
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09:00
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09:45