Enhanced performance in quasi-isodynamic max-J stellarators with a turbulent particle pinch.
basic_science · Level V
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- Record sourced from PubMed, PMID 42141685.
- Also identified by DOI 10.1103/3q3b-q8nj.
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Abstract
Recent stellarator reactor designs demonstrate mostly outward turbulent particle transport, which, without advanced fueling technology, inhibits the formation of density gradients needed for confinement. We introduce "SQuID-τ," a self-fueling quasi-isodynamic stellarator capable of sustaining density peaking through inward particle transport caused by turbulence. Temperature and density profile predictions based on high-fidelity gyrokinetic simulations demonstrate enhanced performance, significantly relaxing constraints on the size and magnetic field strength for reactor designs.