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The prediction of the additional heating power required to reach the H-mode regime is a key issue in the design of the ITER. Power law scalings, which fit the multi-machine ITER threshold database, were calculated using global parameters. The inclusion of different variables showed that even the best log-linear fit still exhibits considerable data scattering. The resulting uncertainty for ITER is large. Improving this situation requires understanding and reduction of the scattering of the experimental data. This has been attempted using more powerful statistical tools.

Additional information

Authors: MARTIN Y, Centre de Recherche en Physique des Plasmas Ecole Polytechnique Federale, Lausanne (CH)
Bibliographic Reference: Article: Proceedings Vol II of 1998 International Congress on Plasma Physics 25th EPS Conference on Controlled Fusion and Plasma Physics, (1998)
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