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Abstract
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 language | English |
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Article number | 202100192 |
Number of pages | 7 |
Journal | Contributions to Plasma Physics |
Volume | 62 |
Issue number | 5-6 |
Early online date | 10 Mar 2022 |
DOIs | |
Publication status | Published - 1 Jun 2022 |
MoE publication type | A1 Journal article-refereed |
Keywords
- gyrokinetic simulation
- particle sources
- PIC
- scrape-off layer
- tokamak plasma edge
- turbulence
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MoPEF: Molecules and Photons in the edge of fusion plasmas
Groth, M., Järvinen, A., Kiviniemi, T., Holm, A., Solokha, V., Mäenpää, R., Rikala, V., Rees, D., Chandra, R. & Virtanen, P.
01/09/2020 → 31/08/2024
Project: Academy of Finland: Other research funding
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-: Turbulent transport of fusion plasmas
01/02/2020 → 31/12/2022
Project: Academy of Finland: Other research funding
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-: Cyclokinetic edge turbulence in tokamak plasmas
Kiviniemi, T., Albert Devasagayam, F., Chone, L., Leerink, S. & Iorio, R.
01/09/2018 → 31/12/2022
Project: Academy of Finland: Other research funding