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The SPARC Primary Reference Discharge defined by cfsPOPCON
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The Primary Reference Discharge (PRD) is a design point maximizing the highest-achievable fusion power gain in a full-field (12.2T), full-current (8.7MA) DT-fueled H-mode on SPARC. The Primary Reference Discharge was defined in the SPARC Physics Basis using a precursor to the cfsPOPCON scoping tool. In this memo, we discuss modifications made to the cfsPOPCON scoping tool since the release of the SPARC Physics Basis and show that the key parameters of the PRD design point have not changed significantly.
Forward citations
Cited by 3 Pith papers
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Empirical impact of near-separatrix plasma and neutral transport on the pedestal in the transition between EDA and ELMy H-modes on Alcator C-Mod
An added resistive-ballooning transport channel lets the Saarelma-Connor model reproduce EDA H-mode pedestal densities on C-Mod up to 3×10^20 m^-3 and lowers predicted SPARC pedestal density by ~20%.
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Impact of model uncertainty on SPARC operating scenario predictions with empirical modeling
Accounting for uncertainties in empirical scaling laws, plasma profiles, and impurities shifts the predicted optimal SPARC operating point away from the deterministic POPCON optimum.
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Determination of confinement regime boundaries via separatrix parameters on Alcator C-Mod based on a model for interchange-drift-Alfv\'en turbulence
The SepOS separatrix turbulence model, previously tested only on ASDEX Upgrade, is validated on Alcator C-Mod and extended to I-mode, ELMy-EDA transitions, and SPARC operating projections.
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