| LC control no. | sh 85135836 |
|---|---|
| Topical heading | Tokamaks |
| Variant(s) | Tokamak devices |
| See also | Fusion reactors Plasma confinement devices |
| Found in | McGraw-Hill dict. of sci. and tech. terms, c2003 (tokamak: A device for confining a plasma within a toroidal chamber, which produces plasma temperatures, densities, and confinement times greater than that of any other such device; confinement is effected by a very strong externally applied toroidal field, plus a weaker poloidal field produced by a toroidally directed plasma current, and this current causes ohmic heating of the plasma) The Wordsworth dict. of sci. & tech., 1995 (tokamak (Phys.). Torus-shaped magnetic bottle, using an auxiliary magnetic field to achieve good plasma confinement for nuclear fusion; Tokamak (Nuc.Eng.). In fusion, a toroidal apparatus for containing plasma by means of two magnetic fields, (a) a strong toroidal magnetic field created by coils surrounding the vacuum chamber and (b) a weaker poloidal field created by an intense electric current through the plasma. Tokamak is an acronym of the Russian words meaning toroidal magnetic chamber) NASA thes. (Tokamak devices) Int'l energy subj. thes., 1990 (Tokamak devices) |
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