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M. Shimada1, G. Janeschitz2,
R. D. Stambaugh3, D. E. Post2,
Y. Igitkhanov2, G. F. Matthews4,
G. W. Pacher5, H. D. Pacher6,
M. Sugihara2, A. Hubbard7, Y. Kamada1,
B. LaBombard7, A. W. Leonard3, A. Loarte6,
K. McCormick8, T. H. Osborne3, G. D. Porter9,
W. Suttrop8, ITER Divertor Modeling and Database Expert Group,
ITER Divertor Physics Expert Group
1 Japan Atomic Energy Research Institute, Naka-machi, Ibaraki-ken,
311-0193 Japan
2 ITER Joint Work Site, 85748 Garching, Germany
3 General Atomics, San Diego, CA, U.S.A.
4 JET Joint Undertaking, Abingdon, U.K.
5 CCFM Varennes, Canada
6 The NET Team, 85748 Garching, Germany
7 MIT Plasma Science and Fusion Center, Cambridge, MA, U.S.A.
8 Max Planck Institut für Plasmaphysik, 85748 Garching, Germany
9 Lawrence Livermore National Laboratory, Livermore, California, U.S.A.
Abstract. An edge database has been archived to facilitate cross-machine
comparisons of SOL and edge pedestal characteristics, and to enable comparison
with theoretical models with an aim to extrapolate to ITER. The SOL decay
lengths of power, density and temperature become broader for increasing
density and
q95. The power decay length is predicted to be 1.4-3.5 cm
(L-mode) and 1.4-2.7 cm (H-mode) at the midplane in ITER. Analysis of Type I
ELMs suggests that each giant ELM on ITER would exceed the ablation threshold
of the divertor plates. Theoretical models are proposed for the H-mode
transition, for Type I and Type III ELMs and are compared with the edge
pedestal database.
IAEA 2001
