In these lectures, the confinement principles of the Tokamak are outlined and the present status of Tokamak research is reviewed, with particular reference to the JET machine, which is the largest operating Tokamak in the world. The need for additional heating in Tokamaks is discussed and the various methods are compared. Certain parameter limitations (e.g. disruptions, sawtooth oscillations, impurities and beta limits) presently encountered are detailed and options for surmounting these problems are presented. Their effect on energy confinement and the various empirical scaling laws encountered in differing conditions are discussed, particularly the confinement degradation observed in additional heating situations. Finally, the main achievements and future outlook with Tokamaks are summarized.
Bibliographic Reference: COURSE AND WORKSHOP ON BASIC PHYSICAL PROCESSES OF TOROIDAL FUSION PLASMAS, VARENNA (ITALY), AUG. 26-SEPT. 3, 1985 VOL. I, PP. 19-64 EUR 10418 EN (1986) FS, VOL. I AND VOL. II, 733 P., BFR 3600 FOR BOTH VOLUMES, EUROFFICE, LUXEMBOURG, POB 1003
Record Number: 1989125075700 / Last updated on: 1987-12-01
Available languages: en