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A review of the results of the maximum attainable beta, current drive efficiency, confinement and divertor designs is presented. These are related to a wide range of tokamak reactor studies which already exist and to potential reactors in the middle of the next century, based upon possible advances in beta, confinement, current drive and impurity control. The present state of divertor designs and the limits of performance are also discussed. Three particular approaches which would radically alter the conventional tokamak reactor concept are noted. These are the second stability regime at low plasma current with high aspect ratio, which makes steady state operation using the bootstrap current likely, the tight aspect ratio approach with substantial beta value and high power to mass ratio, and the advanced conversion tokamak, using synchrotron radiation both to drive the current and for direct energy conversion.

Additional information

Authors: ROBINSON D C ET AL., UKAEA, Culham Laboratory, Abingdon, Oxon. (GB)
Bibliographic Reference: Report: CLM-P862 EN (1989) 41 pp.
Availability: Available from the Librarian, UKAEA, Culham Laboratory, Abingdon, Oxon. OX14 3DB (GB)
Record Number: 199010828 / Last updated on: 1994-12-01
Original language: en
Available languages: en
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