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Abstract

The SPARC tokamak is being designed to demonstrate significant fusion gain using a modestly sized device (major R = 1.85 m and minor, a = 057m radius) with high magnetic field enabled by recent advances in high-temperature superconductor technology. This talk present integrated numerical modelling applied to SPARC v2 H-mode scenario with tungsten wall and single null (SN) divertor configuration. Simulation are peformed with the COREDIV code, which self-consistently solves 1D radial transport equations for plasma and impurities in the core region and 2D multi-fluid transport in the SOL. The effect of the plasma density on fusion performance and SOL/divertor parameters is investigated for baseline scenario characterised by Ipl=8.7 MA, Btor=12.2 T, with different auxiliary heating: and neon seeding. The confinement in terms of the H-factor (IPB98(y,2) is equal to 1.0. The heating due to alpha power is calculated self-consistently considering the dilution effect due to helium and impurities accumulation.