ITER is an international partnership to build the world’s largest fusion experiment. The goal of ITER is to prove the feasibility of fusion as a carbon-free, abundant energy source. The confinement of energetic particles (EP) is a critical issue for burning plasma experiments since the ignition in ITER fusion reactor relies on the self-heating by energetic fusion products (α-particles). Plasma confinement property in burning plasmas is one of the most uncertain issues when extrapolating from existing fusion devices to ITER. The fusion community has made impressive progress in developing comprehensive EP simulation codes and understanding key EP physics. In particular, the gyrokinetic turbulence simulation has been successfully established as a necessary paradigm shift in the energetic particle studies. Nonetheless, more coordinated efforts and advanced computing hardware and software are urgently needed for first-principles, integrated simulations incorporating multiple physical processes and disparate temporal-spatial scales to build the EP predictive capability for ITER.
The Integrated Simulation of Energetic Particles (ISEP) project aims to improve physics understanding of energetic particle (EP) confinement and EP interactions with burning thermal plasmas through large-scale simulations. This allocation supports ISEP development of a comprehensive predictive capability for EP physics and an EP module incorporating both first-principles simulation models and high fidelity reduced transport models to the fusion whole device modeling (WDM) project. This project will advance predictive capabilities of the fusion community and supports the success of ITER.
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