Home / Store / Journals / Electronic Articles / Fusion Science and Technology / Volume 47 / Number 2 / Pages 266-273
K. H. Finken, R. Jaspers, A. Krämer-Flecken, A. Savtchkov, M. Lehnen, G. Waidmann
Fusion Science and Technology / Volume 47 / Number 2 / Pages 266-273
Format:electronic copy (download)
Disruptions remain a major concern for tokamak devices, particularly for large machines. The critical issues are the induced (halo) currents and the resulting forces, the excessive heating of exposed surfaces by the instantaneous power release, and the possible occurrence of highly energetic runaway electrons. The key topics of the investigations on TEXTOR in the recent years concerned (a) the power deposition pattern recorded by a fast infrared scanner, (b) the runaway generation measured by synchrotron radiation in the infrared spectral region, (c) method development for "healing" discharges that are going to disrupt, and (d) massive gas puffing for mitigating the adverse effects of disruptions.
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