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The ITER Threshold Database which presently includes data from 9 divertor tokamaks is described. The main results are presented and discussed. The features and dependencies of the power threshold in single devices are reviewed. In particular, the analysis shows a rather general linear dependence on magnetic field, but a non monotonic density dependence which varies from device to device. Investigation of the combined database suggests that the threshold dependence P(thres) = 0.3NELxBTxR(2.5) gives the best agreement with the data. This expression yields P(thres) = 150 MW at a density of 0.5x10(20 m{-3} for ITER. Other expressions with weaker size dependence and therefore lower threshold power for ITER are also discussed. In addition the database is investigated by statistical discriminant analysis. The presently included edge data are described and discussed.

Additional information

Authors: RYTER F, Max-Planck-Institut für Plasmaphysik, Garching (DE);CAMPBELL D J ET AL, JET Joint Undertaking, Abingdon, Oxon (GB)
Bibliographic Reference: Report: JET-P(95)55 (1995) 66pp.
Availability: Available from the Publications Officer, JET Joint Undertaking, Abingdon, Oxon, OX14 3EA (GB)
Record Number: 199610348 / Last updated on: 1996-03-29
Original language: en
Available languages: en
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