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Abstract

The theoretical stability of high-beta JET discharges is discussed. For high-n ballooning modes near the beta-limit, it is found that approximately the central 50% of the plasma is marginally stable. For low-n modes (n=1 and 2), the theoretical predictions are found to correlate well with the experimentally observed soft X-ray behaviour, and provide a basis for predicting the central q-profile.

Additional information

Authors: HUYSMANS G T A, FOM Instituut voor Plasmafysica, Rijnhuizen, Nieuwegein (NL);GOEDBLOED J P, FOM Instituut voor Plasmafysica, Rijnhuizen, Nieuwegein (NL);HENDER T C, UKAEA, Culham Laboratory, Abingdon, Oxon. (GB);KWON O J, UKAEA, Culham Laboratory, Abingdon, Oxon. (GB);LAZZARO E, Bassini 15, Milano (IT);SMEULDERS P, JET Joint Undertaking, Abingdon, Oxon. (GB)
Bibliographic Reference: Report: JET-P(90)26 EN (1990) 16 pp.
Availability: Available from the Publications Officer, JET Joint Undertaking, Abingdon, Oxon. OX14 3EA (GB)
Record Number: 199110305 / Last updated on: 1994-12-02
Category: PUBLICATION
Original language: en
Available languages: en