Effect of toroidal particle sources on SOL physics in the FT-2 tokamak

Francis Clinton Prasanth Albert Devasagayam*, Laurent Chôné, Timo Petteri Kiviniemi, Oksana Kaledina, Sergei Shatalin, Alexey Dmitrievich Gurchenko, Alexey Altukhov, Evgeniy Gusakov, Mikhail Kantor, Denis Kouprienko, Sergei Lashkul

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

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Two gas-puffs are used near limiters in the FT-2 tokamak for the purpose of hydrogen refuelling during plasma discharges. This creates toroidal and poloidal asymmetry in particle sources near limiters which has to be considered in modelling. Here, the effect of toroidal asymmetry is simulated using the gyrokinetic code ELMFIRE. Two slightly different toroidal particle sources are used in simulations, and their results are compared with each other, and with experimental measurements to understand the impact of toroidal particle sources on Scrape-off Layer (SOL) physics.

Original languageEnglish
Article number202100192
Number of pages7
JournalContributions to Plasma Physics
Issue number5-6
Early online date10 Mar 2022
Publication statusPublished - 1 Jun 2022
MoE publication typeA1 Journal article-refereed


  • gyrokinetic simulation
  • particle sources
  • PIC
  • scrape-off layer
  • tokamak plasma edge
  • turbulence


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