Frascati Tokamak Upgrade

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The Frascati Tokamak Upgrade is a tokamak operating at Frascati, Italy. Building on the Frascati Tokamak experiment, FTU is a compact, high-magnetic-field tokamak (Bθ = 8 T). It began operation in 1990 and has since achieved operating goals of 1.6 MA at 8 T and average electron density greater than 4×1020 per cubic meter. The poloidal section of FTU is circular, with a limiter.


major radius 0.935 m
minor radius 0.30 m
magnetic field < 8 T
plasma current < 1.6 MA
discharge duration 1.7 s


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