tokamakn.
/ˈtəʊkəmak/ Physics.
One kind of toroidal apparatus for producing controlled fusion reactions in a hot plasma, distinguished by the fact that the controlling magnetic field is the sum of a toroidal field due to external windings and a poloidal field due to an induced longitudinal current in the plasma.
ΘΚΠ
the world > matter > physics > atomic nucleus > nuclear fission > nuclear fusion > [noun] > fusion reactor > toroidal apparatus
stellarator1951
tokamak1969
1969 Nature 1 Nov. 488/1 Measurements have been made of the electron temperature and density of the plasma in the toroidal discharge apparatus Tokamak T3..at the Kurchatov Institute.
1972 Sci. Amer. July 73/3 The first large Tokamak machine put into operation in the U.S. resulted from a conversion of the Model C stellarator in the Princeton University Plasma Physics Laboratory.
1980 Ann. Rep. 1979/80 (U.K. Atomic Energy Authority) 31/1 In tokamaks, plasma is heated and confined by an electric current induced by transformer action, while a strong external field stabilizes the plasma.
1981 Nature 19 Feb. 625/1 The tokamak must create the longitudinal current in the plasma by a transformer effect, and so must be pulsed. The stellarator, on the other hand, can in principle be run statically.
1984 N.Y. Times Bk. Rev. 1 Apr. 23/2 In the race to achieve commercial success, Princeton's tokamak (the original Russian acronym for a toroidal magnetic chamber) is pitted against..laser technology.
This entry has not yet been fully updated (first published 1986; most recently modified version published online March 2018).
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