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Abstract

The Joint European Torus (JET) has now been in operation for over one year during which the plasma current provided the only means of plasma heating (ohmic heating phase). The operational results and the plasma parameters achieved are reviewed in relation to advances towards an ignition fusion reactor. Particular consideration is given to the density limits encountered in tokamak operation and to the role of impurities in the local power balance between ohmic heating and radiation losses due to impurities. An attempt is made to interpret confinement properties of tokamak plasmas in terms of the magnetic topology being influenced by the local power balance; possible consequences for the next phases of the JET programme and for the development towards fusion plasmas are discussed.

Additional information

Authors: REBUT P H JET JOINT UNDERTAKING, ABINGDON (UK), JET JOINT UNDERTAKING, ABINGDON (UK)
Bibliographic Reference: WRITE TO THE PUBLICATIONS OFFICER, JET JOINT UNDERTAKING, ABINGDON, OXON, OX14 3EA (UK), MENTIONING REPORT JET-P(84)-11, 1984
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