Abstract
During the first two years of operation, the TCV tokamak has produced a large variety of plasma shapes and magnetic configurations, with 1.0≤B tor≤1.46T,I p≤800kA,k≤2.05, −0.7≤δ≤1. A new shape control algorithm, based on a finite element reconstruction of the plasma current in real time, has been implemented. Vertical growth rates up to 1000s−1 have been stabilized using the external coil system. Ohmic H-modes with Troyon factors (β tor aB/I p) up to two and densities up to 2.25×1020m−3, corresponding to the Greenwald limit, have been obtained in diverted discharges. Limiter H-modes with line averaged electron densities up to 1.7×1020m−3 have been obtained in elongated D-shaped plasmas with 360 kA≤I P≤600 kA.
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This work was partly supported by the Fonds National Suisse de la Recherche Scientifique.
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Weisen, H., Hofmann, F., Dutch, M.J. et al. Recent results from the TCV tokamak. Czech J Phys 45, 1095–1110 (1995). https://doi.org/10.1007/BF01692001
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DOI: https://doi.org/10.1007/BF01692001