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

Autor: 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
Přispěvatelé: Materials Physics, Department of Physics, Department of Applied Physics, University of Helsinki, Fusion and Plasma Physics, Ioffe Institute, Aalto-yliopisto, Aalto University
Jazyk: angličtina
Rok vydání: 2022
Předmět:
Popis: Funding Information: This work has been supported by the Academy of Finland grants 330050, 316088, and 330342. The CSC – IT Center for Science is acknowledged for generous allocation of computational resources for this work. The experimental data were obtained with the support of the Russian Science Foundation grant 17‐12‐01110, whereas the FT‐2 discharge parameters presented in the Figure 3 were obtained with support of the Ioffe Institute state contract 0040‐2019‐0023. Publisher Copyright: © 2022 The Authors Contributions to Plasma Physics published by Wiley-VCH GmbH. 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.
Databáze: OpenAIRE