SUM2027
The 21th SOLEIL Users’ Meeting will take place from Thursday January 14th to Friday 15th, 2027 at SOLEIL.
This invaluable forum for the synchrotron radiation users’ community will provide the opportunity to exchange and learn about the evolution of the machine and the beamlines.
It will be also the occasion to share scientific, technical and practical issues about the synchrotron radiation use.
A plenary talk will cover the spectroscopic studies of magnetism and chirality at SOLEIL. Two additional plenary talks will cover cross-disciplinary aspects of synchrotron : the synchrotron seen for the human and social sciences point of view, and the contributions of the Data Reduction and Analysis Group of SOLEIL to the development of new tools and to the use of artificial intelligence for SOLEIL and SOLEIL II.
Scientific communications, selected from the submitted abstracts, will present recent and original results during the parallel sessions.
In the afternoon of January, 14th and 15th, a social time and scientific exchange will be held at SOLEIL, including the posters sessions, stands from commercial exhibitors and the dinner buffet.
On Friday 15th afternoon, three tutorials are proposed : chemometric tools for large XAS dataset, the artifical intelligence for tomography image analysis, et the use of the CasaXPS software for the data analysis of X-ray photoemission spectroscopy. A mini-symposium will be dedicated to InfraRed spectroscopy on synchrotron ; for the InfraRed community, we offer the possibility to register only to the mini-symposium.
These two days of Users’meeting will be completed on Wednesday 13th by a 1-day satellite workshop dedicated to integrative structural biology at SOLEIL (POLARIS and beamlines).
We remind the PhD students that the Roger Fourme prize, which rewards the best poster presented by a PhD student, will be awarded during the meeting. If you wish to be examined by the jury, which is composed of the S2UO members, you must explicitly apply for the award in the registration form.
Satellite workshop
These two days of Users’meeting will be completed on Wednesday 13th by a 1-day satellite worshop dedicated to integrative structural biology at SOLEIL (POLARIS and beamlines).
This worshop consists in two plenary talks, in scientific communications selected from submitted abstracts and a round table.
It is possible to register only for the satellite worshop, without attending the general meeting on 14th and 15th.
Download the preliminary programme
List of confirmed speakers
Plenary talks:
Satellite workshop – Integrative structural biology at SOLEIL: Contributions from the POLARIS cryo-EM and the synchrotron beamlines
- Anne Houdusse - Institut Curie, Unité Biologie cellulaire et cancer, Paris, France
Nicolas Wolff - Institut Pasteur, Paris, France
SOLEIL Users’ Meeting
- Amélie Juhin - IMPMC, Paris, France
- Cynthia Colmellere - CentraleSupélec, IDHES/ENS Paris-Saclay, Gif-sur-Yvette, France
Emmanuel Fahri - Synchrotron SOLEIL, Saint-Aubin, France
Invited talks:
SOLEIL Users’ Meeting – Parallel Session
Biology and Health
- Emmanuelle Schmitt - Laboratoire de Biologie Structurale de la Cellule, Ecole Polytechnique, Palaiseau, France
- Alessia Cedola - Institute of Nanotechnology - NANOTEC -CNR-Nanotec (Institute of Nanotechnology), Rome, Italy
Chemistry & Soft Matter
- Erwan Paineau - LPS, Gif-Sur-Yvette, France
- Laura Altenschmidt - Uppsala University, Sweden
Diluted matter
- Eva Muchová - University of Chemistry and Technology (UCT), Prague, Czechia
- Mattia Melosso - University of Bologne, Italy
Geosciences / Environment / Cultural Heritage
- Mirko Surdi - Ghent University, Belgium
- Chrystèle Sanloup - IMPMC, Paris, France
Physics & Advanced Materials
- Debora Pierucci - INSP, Paris, France
- Chiara Bigi - Synchrotron SOLEIL, Saint-Aubin, France
Mini-symposium – Synchrotron infrared spectroscopy at SOLEIL: valuable results and new challenges
- Olivier Piralli - ISMO, Orsay, France
- Jean-François Lampin - IEMN, Lille, France
- Thomas Maroutian - C2N, Palaiseau, France
- Anna Celeste - LuMIn, Gif sur Yvette, France
- Magali Gauthier - NIMBE/Laboratoire d’Etude des Eléments Légers, Gif-sur-Yvette, France
- Christophe SANDT - Synchrotron SOLEIL, Saint-Aubin, France
Scientific Committee
BIOLOGY / HEALTH | CULTURAL HERITAGE / ENVIRONEMENT / ARCHAEOLOGY / GEOSCIENCES |
| Paloma FERNANDEZ VARELA Ecole Polytechnique / Laboratoire de biologie structural de la cellule - Palaiseau | Charlotte CATROUILLET Institut de Physique du Globe de Paris - Paris |
| Lorella PASCOLO Institute for Maternal and Child Health - Burlo Garofolo Pediatric Institute - Trieste (Italy) | Simona RANERI University of Florence - Department of Earth Sciences - Florence (Italy) |
DILUTED MATTER | MATTER & MATERIAL PROPERTIES: STRUCTURE, |
| Pierre ASSELIN Université Pierre et Marie-Curie - Paris | Amélie BORDAGE - Présidente Institut de Chimie Moléculaire et des Matériaux d'Orsay - Orsay |
| Helgi Rafn HRODMARSSON Laboratoire inter-universitaire des systèmes atmosphèriques - Créteil | Eglantine BOULARD Institut de Minéralogie, de Physique des Matériaux et de Cosmochimie - Paris |
ELECTRONIC AND MAGNETIC PROPERTY OF MATTER – | CHEMISTRY AND PHYSICO-CHEMISTRY - REACTIVITY IN SITU - |
| Sara GONZALEZ - Secretaire Institut des Nanotechnologies de Lyon - Villeurbanne | Luis CARDENAS - Vice-président Institut de Recherches sur la Catalyse et l'Environnement de Lyon - Lyon |
| Fabien SILLY CEA SPEC - Gif-Sur-Yvette | Asma TOUGERTI Unité de Catalyse et de Chimie du Solide - Université de Lille - Villeneuve d'Ascq |
Local Organising Committee
- Gaïa CAPILLIEZ, Synchrotron SOLEIL
- Mary-Anna DESTERMES, Synchrotron SOLEIL
- Camille ENJOMMET, Synchrotron SOLEIL
- Frédérique FRAISSARD, Synchrotron SOLEIL
- Angéla LAMBERT, Synchrotron SOLEIL
- France ROUET, Synchrotron SOLEIL
- Stéphanie YAO, Synchrotron SOLEIL
Registration is open, click here.
- Deadline for registration: December 9th 2026
Registration fees:
| PARTICIPANT TYPE | AMOUNT FOR THE SUM | AMOUNT FOR THE WORKSHOP |
| Participant* | 100€ VAT INCLUDED | 100€ VAT INCLUDED |
| Student, Invited speaker, member of Organisation Committee, SOLEIL | FREE | FREE |
It includes: buffets, lunches and coffee break.
*Participants from the same laboratory :
We propose, for the participants of a laboratory, the following rule:
from 1 to 4 participants: 100€
/ from the 5th participant : 50€
Any registration cancelled before 16 December 2026 will be eligible for a refund. After this date, no refunds will be given.
Please note that accommodation is NOT included in the registration fees. To book your accommodation, please see the ‘Practical Information’ tab for further details.
Payment modalities
Payment by order form only for French Public organism
For public organism the order form is MANDATORY.
Please send it to the following address: sum2027@synchrotron-soleil.fr. Please indicate the name(s) of the participant(s), the service code Chorus Pro and the reference: SUM 2027 / AG 69260604.
Please note that the payment must be validated by our financial manager and recorded on your registration — this process is not automatic.
The status of your registration will be updated as soon as the payment has been received and confirmed by SOLEIL.
Payment by card
A payment online is possible. You just have to select this mode of payment when registering and to follow instructions.
Payment by bank transfer
Thank you for transmitting your payment by bank transfer to the following account number:
BNP Paris Bas
International Bank Account Number (IBAN): FR76 3000 4006 8400 0100 8245 430
Bank Identification Code (BIC): BNPAFRPPIFO
Synchrotron SOLEIL
With mentioning your name and the event reference: SUM 2027 / AG 69260604. Your registration will be definitive as soon as your payment will be received.
Call for abstract is open, click here.
Deadlines for contributions:
- Oral communications: October 28th, 2026
- Posters: December 9th, 2026
- Plenary and Invited talks: December 9th, 2026
In any case, we kindly ask you to use ONLY the template below to write your summary (in WORD or .rtf format).
Any summary submitted that does not follow this format will be returned to the author
File size is limited to 4MB.
Results of oral communication selection will be announced in November.
Roger Fourme Prize
The best poster presented by a student will receive a prize offered by SOLEIL.
The prize: this is a mission to a congress or a school up to a maximum of €1,000, upon presentation of original tickets issued in the name of the award recipient. Supporting documents relating to expenses covered by a laboratory or another organisation will not be accepted.
The candidates will be evaluated on the following criteria:
- Clear presentation
- Scientific interest
- Originality
- Visual aspects
The poster oral presentation in front of the jury should not exceed 4 minutes.
If you wish to be examined by the jury, which is composed of the S2UO members, you must explicitly apply for the award in the registration form.
The students who have applied for the Best Poster Prize are required to attend the Thursday 14 January 2026 poster session and dinner. The Prize will be awarded on Thursday 14 January 2026 during the diner.
Offers for companies
Registration for advertising is open, click here.
The maximum number of available booths has been reached.
Deadlines :
- Registration for advertising : December 9th, 2026
- Advertising page submission: January 8th, 2027
Booths
We offer during the poster sessions which will take place at SOLEIL a few exhibition areas to companies interested in presenting their products located in the Hall of the Main building of SOLEIL, giving the opportunity for easy interaction between exhibitors, visitors, attendees and the SOLEIL staff.
Offer N° 1: Exhibition on January 13th, 2027 (Satellite Workshop) at the Synchrotron SOLEIL, at the fixed price of €600.00 inc. VAT (€500.00 ex. VAT).
This price includes:
- A booth with a surface area of approximately 4 m² (consisting of a table and 4 chairs) and a poster panel.
For 2 people, access to the sessions, the company logo on the website and their logo in the electronic collection of abstracts, the coffee breaks, and lunch on January 13th, 2027.
Offer N° 2: Exhibition on January 14th to 15th, 2027 (SOLEIL Users’ Meeting) at the Synchrotron SOLEIL, at the fixed price of €1020.00 incl. VAT (€850.00 excl. VAT).
This price includes:
- A booth with a surface area of approximately 4 m² (consisting of a table and 4 chairs) and a poster panel.
For 2 people, access to the plenary sessions, the company logo on the website and their logo in the electronic collection of abstracts, the coffee breaks, lunches on January 14th and 15th, 2027 and conference dinner on June 14th, 2027.
Offer N° 3: Exhibition on January 13th, 14th and 15th 2027 (Satellite Workshop and SOLEIL Users’ Meeting) at the Synchrotron, at the fixed price of €1320.00 inc. VAT (€1100.00 ex. VAT).
This price includes:
- A stand with a surface area of approximately 4 m² (consisting of a table and 4 chairs) and a poster panel.
For 2 people, access to the plenary sessions, the company logo on the website and their logo in the electronic collection of abstracts, the coffee breaks, lunches on January 13th, 14th and 15th and the conference dinner on January 14th, 2027.
Given the limited number of available booths, registration is done on a "1st come / 1st registered" basis.
Advertising insert
Offer N° 4: Insertion of an advertising page (A4 format) into the electronic abstract book of the Users’ Meeting, at the fixed price of €360,00 inc. VAT (€300,00 ex. VAT), for companies exhibiting or not at the event.
Acces to SOLEIL
Accomodation (non exhaustive)
Please note that accommodation is NOT included in the registration fees.
Accommodation at SOLEIL
If you would like to stay at SOLEIL, please book your accommodation directly by contacting the guesthouse.
Please note that priority is given to students.
Maison d'Hébergement de SOLEIL
L'Orme des Merisiers - 91190 GIF-SUR-YVETTE
Tel: +33(0)1 69 35 82 00
E-mail: guesthouse.soleil@elior-services.fr
Accommodation outside SOLEIL
Hôtel Les Chevaliers des Balances - près de SOLEIL
Place de la Mairie - 91190 SAINT-AUBIN
Tél.: +33 (0)1 69 41 20 55 - Fax: +33 (0)1 69 85 50 75
E-mail: leschevaliersdesbalances@gmail.com
Web: www.leschevaliersdesbalances.fr
Hôtel Le Village**
4 rue Neuve - 91190 GIF-SUR-YVETTE
Tél.: +33 (0)1 69 28 82 51 - Fax: +33 (0)1 69 28 53 93
E-mail: hotel.le.village@wanadoo.fr
Web: http://hotellevillage.fr/
Hôtel d'Orsay - près du RER B
2 rue François Leroux - 91400 ORSAY
Tél.: +33 (0)1 64 86 17 47 - Fax: +33 (0)1 64 86 17 48
E-mail: hotel.orsay@orange.fr
Hôtel B&B
Plateau du Moulon - 91190 GIF-SUR-YVETTE
Tél.: +33 (0) 892 78 80 91 - Fax: +33 (0)1 69 35 34 59
Web: http://www.hotel-bb.com/
Hôtel Campanile Paris Sud
9 Ter Rue Joliot Curie - 91190 GIF-SUR-YVETTE
Tél.: +33 (0) 1 84 00 85 35
Web: https://www.campanile.com/fr/hotels/campanile-paris-saclay
Appart Hôtel Residhome Bures-Sur-Yvette La Guyonnerie
1 Rue de la Guyonnerie, 91440 BURES-SUR-YVETTE
Tél.: +33 (0) 1 64 86 36 00
Web: https://www.myresidhome.com/bures-sur-yvette/residhome-bures-la-guyonnerie/apparthotel-residence-hoteliere.html
For any questions, thank you to contact:
sum2027@synchrotron-soleil.fr
SOLEIL BBUS-Évènements
L’orme des Merisiers
Départementale 128
91190 Saint-Aubin
FRANCE