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Finnfusion Annual Seminar 2024

Welcome to the Finnfusion Annual Seminar 2024!

The seminar will take place on May 27-28th, 2024 in Helsinki. Organized jointly by the University of Helsinki and VTT, the 2-day seminar will include presentations, poster session, dinner and an Accelerator Laboratory tour. Participation is free of charge. For more details and addresses, please see the agenda.

Registration ended on May 3rd, 2024. For late registration, please contact Fredric Granberg (

The first day of the seminar is in the UH's City center campus, and the second day will be in Kumpula campus. Reaching Kumpula from the city center is easy (there are several direct bus lines, approx. 15 minutes). For those living outside Helsinki, Pasila train station is approx. 2km from Kumpula campus and can be reached on foot (25 min) or by bus (line 506). If your train passes through Pasila, consider taking the train from there.

Contact points


Venue: Studium 1, Fabianinkatu 33, Downtown Helsinki


9:00-9:30 Registration

9:30-10:00 Session 1: Opening Words

Chair: Taina Kurki-Suonio

  • 9:30 Juho Korteniemi, TEM: Opening words from the Ministry
  • 9:40 Tuomas Tala, VTT: Opening words from FinnFusion
  • 9:50 Kai Nordlund, UH: Opening words from University of Helsinki

10:00-10:30 Coffee Break

10:30-12:30 Session 2: Kumpula Advanced Computing Hub and Machine Learning

Chair: Fredric Granberg

  • 10:30 Mervi Mantsinen, BSC, Spain: Advanced Computing Hubs within EUROfusion E-TASC programme
  • 11:10 Rahul Nagaraja, QuanScient: A new FEM solver for plasma edge studies using Sparselizard C++ library
  • 11:30 Jesper Byggmästar, UH: Machine-learned interatomic potential for atomistic simulations of fusion materials
  • 11:50 Jan Åström, CSC: Code optimization of fusion simulation codes ̶ How to get old Fortran codes to run efficiently on modern hardware
  • 12:10 Aaro Järvinen, VTT: Machine learning acceleration of fusion model validation

12:30-13:30 Lunch

13:30-15:00 Session 3: Fusion Reactor Physics

Chair: Antti Hakola

  • 13:30 Jari Likonen, VTT: Development of LIBS for JET
  • 13:50 David Rees, Aalto: The impact of the main ion species on divertor plasma detachment in tokamaks
  • 14:10 Antti Salmi, VTT: Intrinsic torque in TCV balanced NBI experiments
  • 14:30 Antti Snicker, VTT: Design study for volumetric neutron source: fast ion confinement using ASCOT5 tools

15:00-15:30 Coffee Break

15:30-18:00 Session 4: FinnFusion Student Research Projects

Chair: Markus Airila

  • 15:30 Evgeniia Ponomareva, Aalto: Low-energy light ions electronic energy losses in tungsten
  • 15:40 Faith Kporha, UH: Sputtering simulation of D-decorated tungsten surfaces by different ions
  • 15:50 Dongyi Li, LUT: MPC control of Bionic Caterpillar-like Robot for the Blanket of CFETR remote maintenance
  • 16:00 Andris Freimanis, VTT: Uncertainty in modelling EUROFER97 yield stress
  • 16:10 Tommi Lyytinen, VTT: Neutronics modeling of MCF reactors using Serpent2 code
  • 16:20 Ville Yli-Suutala, ÅA: GPU enabled interatomic potentials in LAMMPS with Kokkos
  • 16:30 Roni Mäenpää, Aalto: Impact of nitrogen molecular breakup on divertor conditions in JET L-mode plasmas using SOLPS-ITER, EDGE2D-EIRENE and ERO2.0
  • 16:40 Bruno Oliveira Cattelan, UH: AI applied to fusion, estimate for defect energies and runaway electrons

17:00-18:00 FinnFusion Student Research Projects in Poster Session

18:30 Seminar Dinner – Agora (Same building as the seminar, Fabianinkatu 33)

Venue: Physicum E204, Gustaf Hällströmin katu 2, Kumpula Campus


9:00-10:00 Session 5: Fusion Reactor Safety, Environment, Licensing and Foresight

Chair: Kai Nordlund

  • 9:00 Juuli Huuhanmäki, VTT: Future of Fusion – Delphi expert study
  • 9:20 Vesa Laitinen, Platom: Decommissioning and waste recycling questions of DEMO – The Finnish perspective
  • 9:40 Daniel Kaartinen, VTT: What should fusion learn from the nuclear waste management experiences in light-water reactors?

10:00-10:20 Coffee Break

10:20-12:30 Session 6: Remote Maintenance Activities in Finland

Chair: Karoliina Salminen

  • 10:20 Oliver Crofts, UKAEA, United Kingdom: RACE and its input to DEMO including collaboration with TR0, RMTF and the interface with RMTP
  • 10:50 Mikko Siuko, VTT: DTP2 activities for ITER
  • 11:10 Stefan Mühlig-Hofmann, Comatec: Engineering design for DEMO
  • 11:30 Huapeng Wu, LUT: Test rig of MPD for the limiter and other heavy components in DEMO
  • 11:50 William Brace, VTT: Remote Maintenance Test Platform (RMTP) development and links to DEMO
  • 12:10 Petri Surakka, Fulvisol: Aras PLM development for fusion applications: From Excel/Word chaos to Digital Thread

12:30-13:30 Lunch

13:30-15:00 Session 7: Fusion Materials Studies in Finland

Chair: Flyura Djurabekova

  • 13:30 Guanying Wei, UH: Radition Damage Simulations in W-based alloys
  • 13:50 Sarita Hernesniemi, Luvata: CuCrZr for blanket and divertor applications
  • 14:10 Matti Lindroos, VTT: Modeling hardening and embrittlement of fusion structural materials at the scale of polycrystalline microstructure
  • 14:30 Andrea Sand, Aalto: Fusion materials modelling at Aalto

15:00-15:30 Coffee Break

15:30-16:30 Tour to UH Accelerator Laboratory