TopFuel is an annual topical meeting organised by ENS, the American Nuclear Society as well as the Atomic Energy Society of Japan, the Chinese Nuclear Society and the Korean Nuclear Society.

TopFuel brings together leading specialists in the field from around the world. For three days they share advances in nuclear fuel management technology in discussions and presentations. Participants can then use the findings of the latest cutting-edge research in their daily professional lives to design, manufacture, operate and dispose of the high-performance nuclear fuels of today and tomorrow.

Stay tuned, sign up for the TopFuel mailing list and follow us on Twitter and LinkedIn!


The Preliminary Technical Programme of TopFuel 2024 is available here.

Learn more about the TopFuel 2024 Innovation Day here.

Technical Tours

On Thursday 3rd October, participants can choose between two technical tours.

Framatome’s fuel manufacturing facility – Romans sur Isère

Fuel assembly workshop at Romans sur Isère. Ph. Framatome


The Framatome’s fuel manufacturing facility for nuclear power plants and research reactors is located in Romans sur Isère.

This site is also the Framatome’s development centre for fuel research and medical-use products. It is home to leading innovations in fuel design and fabrication, with expertise in uranium metal-based alloys as part of its CERCA brand, and uranium-based medical irradiation targets as part of its Framatome Healthcare brand. Every year, the facility delivers about 200 fuel elements to research centres and universities, while around 30 million out of the 45 million nuclear medical examinations carried out worldwide, use medical targets produced by Framatome at Romans sur Isère.

Find out more about the Framatome’s fuel manufacturing facility in Romans sur Isère.


7:30 AM – Bus departure from the MINATEC Centre
By 3 PM – Bus return to Grenoble


Sponsored by

Institut Laue-Langevin (ILL) – Grenoble


The high-flux reactor at ILL is one of the world’s most intense neutron sources for research. Ph. Jean Louis Baudet


The Institut Laue-Langevin (ILL) is based in Grenoble, just next to the MINATEC Centre.

ILL is an international research centre at the leading edge of neutron science and technology. As the world’s flagship centre for neutron science, the ILL provides scientists with a very high flux of neutrons feeding some 40 state-of-the-art instruments, which are constantly being developed and upgraded. The ILL High-Flux Reactor generally operates four 50-day cycles per year, providing 200 days for science. As a service institute, the ILL makes its facilities and expertise available to visiting scientists. Every year, about 1400 researchers from over 40 countries visit the ILL and 1000 experiments selected by a scientific review committee are performed. Research focuses primarily on fundamental science in a variety of fields: condensed matter physics, chemistry, biology, nuclear physics, materials science, etc.

Find out more about the Institut Laue-Langevin (ILL).


Group 1

8:45 AM – Meeting at the Institut Laue-Langevin (ILL)
11:00 AM – End of the tour


Group 2

11:00 AM – Meeting at the Institut Laue-Langevin (ILL)
1:00 PM – End of the tour


The Technical Tours are included in the registration fee.

The maximum size of each group is limited and participation is on a first-come, first-served basis.

When the registrations are open, please fill in the appropriate section of the form and the required information for the security check.

Social Programme


Networking is a major benefit of the TopFuel Conference. The social events help connect conference delegates and are included in the registration fee.

Discover Grenoble

With its unique blend of mountain lifestyle and cosmopolitan culture, Grenoble stands out in France and Europe. Grenoble has history, culture and extraordinary wrapped altogether!

On Sunday 29 September, you will have the opportunity to join one of three guided city tours, each offering a unique perspective on Grenoble’s rich history and vibrant culture.

The historic centre of Grenoble

This walk through the ancient city offers you a great journey into the fabulous history of Grenoble which is more than 2,000 years old.
Historical monuments and old residences bear witness to this, such as the former Palace of Parliament, the cathedral and Stendhal’s home.

Street Art

Thanks to the Street Art Fest Grenoble Alpes, an annual festival since 2015, the city has become a hotspot for this fascinating form of expression that is Street Art. Every year, the Grenoble metropolis is enriched with new works, tiny or monumental, produced on various media, by Grenoble artists, French or foreign, famous or unknown. At the end of this guided tour, Street Art, its artists and its techniques will no longer hold any secrets for you.

The exceptional sundial

TopFuel Innovation Day

In the former École Centrale de Grenoble, where Stendhal was a student from 1796 to 1799, there is an exceptional heritage in the main staircase: it is a sundial created in 1673 by the Jesuit Father Jean Bonfa.
This sundial, unique in the world, is a device that tells the time, but also the seasons, the astrological signs, and the position of the moon and the sun… A remarkable testimony to the science of the Jesuit fathers of the 17th century.

The tours will take place from 10.30 AM to 12 PM on Sunday 29 September, leaving you free to take part in the activities of the Innovation Day organized in the afternoon.

Welcome Reception

Get in touch before the conference starts at the TopFuel 2024 Welcome Reception. The Welcome Reception will take place from 5 PM to 8.30 PM on Sunday 29 September at the MINATEC Conference venue. It will be accompanied by a Pre-registration which ensures smooth registration prior to the conference.

Sponsored by

Conference Dinner

The Conference Dinner of TopFuel 2024 will take place on Tuesday 1 October 2024 at the Domaine Clairfontaine.
Domaine Clairfontaine is a prestigious 18th-century residence nestled in a two-hectare park of greenery and an incredible natural setting with the surrounding mountains. Since its beginnings, Domaine Clairfontaine has seen a succession of luxurious receptions and influential people from the Grenoble region, and it is in the continuity of the history of the places that we will enjoy the TopFuel 2024 Conference dinner.

The Social Programme is included in the registration for TopFuel 2024 delegates.
Please fill in the relevant sections of the registration form to confirm your registration for the different parts of the Social Programme.

It is possible to purchase tickets for accompanying persons.

Programme Committee


Click here to be added to the mailing list of TopFuel.

Info Point

TopFuel 2024 – Venue

TopFuel 2024 will take place at the Maison MINATEC Congress Centre in Grenoble, France. 

MINATEC is the deep-tech Innovation Campus in the heart of the Grenobles-Alps high-tech ecosystem. This international hub for micro and nanotechnology research is home to 3,000 researchers, 1,200 students, and 600 business and technology transfer experts. The Congress Centre hosts more than 600 events (meetings, conferences, seminars, etc.) and welcomes 40,000 visitors every year.

Find out more about the venue.


Grenoble has a well-developed urban transport system. The MINATEC Congress Center is directly linked to the Grenoble city centre and the railway station (via Tram B, Cité Internationale stop).

Further details on alternative options (buses, taxis…) are available on Grenoble Tourisme.


Grenoble offers a range of hotels all along the itinerary from the city centre to MINATEC. Here you can find lists of recommended hotels in a walking distance or tramway distance from the venue.

ABOUT Grenoble

At the end of every street, a mountain”. This is the fitting description that the famous 19th-century French writer Stendhal made of his hometown. Grenoble is indeed nestled at the foot of the French Alps, on the banks of the Isére river. The mountain soul of the city, which hosted the 1968 Winter Olympics, offers many outdoor and sports activities, like skiing, hiking, and climbing. But the second nature of the town is innovation. Grenoble has indeed grown to be one of Europe’s most important research and technology centres, with one in five inhabitants working directly in these fields.


Citizens from countries outside of the Schengen area might need a visa to enter France. Check here if you need a visa. 

Upon request, the European Nuclear Society will prepare a visa invitation letter for delegates whose registration fees were received in full. Unfortunately, we are not in a position to give any further support to the visa application process. Obtaining a visa remains the sole responsibility of the participant. Regular cancellation deadlines apply, regardless of whether your visa was granted or not. 



European Nuclear Society

Avenue des Arts 56
1000 Brussels

Call for Papers

TopFuel’s primary objective is to bring together leading international specialists in the field, from operators and engineering companies, designers and manufacturers, research institutes and universities, regulators and technical supporting organizations, to share experiences and advances in nuclear fuel technology, and to use the findings of the latest cutting-edge research to achieve high reliability, performance and safety of nuclear fuels for today and tomorrow.

The TopFuel 2024 Programme Committee is calling for both oral and poster presentations in the following tracks:

  • Track 1. Operation and experience
  1. Fuel operating experience and performance: reliability and leakers, fuel assembly and component distortion, degradation and failures, handling issues, water-side corrosion and hydriding, stress corrosion cracking, poolside examination and hot cell PIE;
  2. Fuel assembly repair and reconstitution;
  3. Failed fuel monitoring, water chemistry and corrosion/crud/dose countermeasures;
  4. In core fuel management: mixed core operation; reload variability; flexible operation (power modulation or load follow), extended operating domain, end of reactor life (management of final cycles);
  5. Fuel supply strategy;
  6. Fluence reduction to reactor components.


  • Track 2. Advances in designs, materials, and manufacturing
  1. Fuel assembly design innovations;
  2. Processing and manufacturing including progress in additive manufacturing;
  3. Cladding and structural materials development; mechanical and corrosion behaviour; irradiation experience in materials testing reactors (MTRs);
  4. Fuel design improvements for higher than 5% enrichment, high burnup, fluence reduction and efficient disposal;
  5. Development strategy for SMR fuels.


  • Track 3. Short- and long-term Advanced Technology Fuels (ATF)
  1. In-MTR and in-LWR LTR / LTA experience with advanced fuel and control rod designs, fuel pellet, cladding and component materials behaviour;
  2. Qualification, licensing, deployment scenarios;
  3. Life-cycle implementation from manufacturing to reactor operation and back-end;
  4. In-reactor performance of ATFs in normal operation and AOOs;
  5. Economics aspects of ATFs deployment strategy


  • Track 4. Used fuel storage, transportation and re-use
  1. Closed fuel cycles and strategies;
  2. Re-use after transportation/storage;
  3. Interim storage, dry storage, wet storage, and long term storage strategies (including ATF);
  4. Handling and transportation of damaged, high BU and non-standard fuels (including ATF); handling and treatment of leaking fuel;
  5. Spent fuel safety: R&D activities, ageing issues, criteria and regulations;
  6. Long-term fuel database management.
  • Track 5. Transient fuel behaviour and safety related issues
  1. Transient fuel behaviour (RIA, LOCA, ATWS, PCI/SCC, PCMI, post-CHF…),
  2. Safety and design criteria (including DEC conditions), safety analysis and licensing for current fuel and ATF;
  3. Fuel safety related issues (e.g., fuel fragmentation, relocation, and dispersal; long term coolability; re-criticality; transient fission gas release; cladding ballooning and burst mechanisms; fuel behaviour under extended loss of cooling,…);
  4. Quantification and management of margins;
  5. Small- and large-scale fuel testing facilities;
  6. In-pile and out-of-pile test results and analyses.


  • Track 6. Modelling, analysis, and methods
  1. Development, verification, validation, and uncertainty quantification (VVUQ) of fuel performance modelling codes;
  2. Multi-physics multi-scale modelling; water chemistry and crud modelling;
  3. Validation databases;
  4. Transposition to in-reactor and back-end conditions;
  5. Fuel design and safety analysis methods, including uncertainty analysis;
  6. Data-driven and artificial intelligence technology applications;
  7. Modelling of ATF and SMR fuels.

Mark your diaries and be a part of it! 


IMPORTANT – The deadline for the Abstract Submission has been extended to 15th February 2024.
Next steps


Abstract Submission

15 February 2024

Author Notification

4 March 2024

Draft Paper Submission

3 May 2024

Paper Acceptance Notification

14 June 2024

Full Paper Submission 5 July 2024
TopFuel 2024 in Grenoble 29 September – 3 October 2024


For abstract submission please go to the TopFuel 2024 Online Abstract Submission System.

Track Leaders

Track Leader Affiliation Country
1 Operation and experience Nadine Hollasky/Guy Roussel
Eva Thyberg
Guoliang Zhang
2 Advances in designs, materials and manufacturing David Schrire
Zeses Karoutas
Jiao Yongjun
3 Short- and long-term Advanced Technology Fuels (ATF) Nico Vollmer
Nicolas Waeckel
Kan Sakamoto
4 Used fuel storage, transportation and re-use Cristina Munoz
Carolina Losin
Marc Verwerft
5 Transient fuel behavior and safety related issues Jinzhao Zhang
Oliver Marchand
6 Modelling, analysis and methods Marco Cherubini
Johannes Bertsch
Kenneth Geelhood
7 Innovations in experimental methods, instrumentation and test reactor rigs Michelle Bales
Antoine Ambard
Special Session on IAEA CRP ATF-TS Jinzhao Zhang
Martin Sevecek
Anzhelika Khaperskaia
Czech Republic

Registration & Fees

Registration fees for TopFuel 2024 (all rates excl. 10% VAT)




ENS Members

850 € *


975 €


650 € **


A discounted rate of 400€ (ex. VAT) exists for members of the ENS Young Generation. Please contact for more information.

* Members of ENS’ Member Societies are automatically members of ENS.
** Applicable to participants from Universities

Registrations are now open!

What is included in my conference fee?
  • Participation in all sessions
  • Conference materials
  • Lunches and coffee breaks
  • Innovation Day
  • Social Programme
  • Welcome Drink
  • Conference Dinner
  • Technical Tours (Participation is on a first-come, first-served basis)


Prime Sponsor

Platinum Sponsor

Interested in becoming a TopFuel 2024 Sponsor? Contact