| Issue |
EPJ Web Conf.
Volume 346, 2026
25th Topical Conference on Radio-Frequency Power in Plasmas (RFPPC2025)
|
|
|---|---|---|
| Article Number | 02014 | |
| Number of page(s) | 6 | |
| Section | Wave Heating and Current Drive in Present and Future Fusion Devices | |
| DOI | https://doi.org/10.1051/epjconf/202634602014 | |
| Published online | 07 January 2026 | |
https://doi.org/10.1051/epjconf/202634602014
Progress in the pre-conceptual design of the auxiliary heating and current drive system for the Tokamak Energy Fusion Pilot Plant
Tokamak Energy LTD, 173 Brook Drive, Abingdon, UK, OX14 4SD
* Corresponding author: aleksandra.alieva@tokamakenergy.com
Published online: 7 January 2026
Auxiliary heating and current drive is a crucial aspect of reactor-relevant tokamaks. Tokamak Energy is currently in the design phase of their Fusion Pilot Plant (FPP). Initial investigations for the flat-top phase of plasma scenarios rely exclusively on electron cyclotron (EC) waves as auxiliary heating and current drive source. This work focuses on parametric optimisation of the flat-top EC current drive scheme via ray-tracing simulations for three plasma scenarios, each having different magnetic field and aspect ratio. The purpose of the study is to maximise the normalised current drive efficiency ζ ECCD. It is shown that EC waves in the O mode polarisation are capable of efficiently driving plasma current throughout the plasma volume, supporting the notion that EC waves can be the single auxiliary power source for flat-top operations.
© The Authors, published by EDP Sciences, 2026
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