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A summary is presented of the magnetohydrodynamic (MHD) activity observed in JET high performance plasmas. The relationship between MHD phenomena and the onset of confinement limitation is discussed, as are aspects of the three main types of performance limiting MHD: low n modes in the outer regions of the plasma; sawteeth; and giant edge localized modes (ELMs). Model simulations indicate how the transport is affected and allow a preliminary assessment of how much the neutron yield would be improved if the MHD activity were absent.

Additional information

Authors: NAVE M F F, Associação EURATOM/IST, Instituto Superior Técnico, Lisboa (PT);SMEULDERS P ET AL, JET Joint Undertaking, Abingdon, Oxon. (GB);HENDER T C ET AL, AEA Fusion, Culham Laboratory, Abingdon, Oxon. (GB)
Bibliographic Reference: Article: JET-P(96)14 EN (1996) 21pp.
Availability: Available from the Publications Officer, JET Joint Undertaking, Abingdon, Oxon, OX14 3EA (GB)
Record Number: 199610849 / Last updated on: 1996-08-16
Original language: en
Available languages: en