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tokamak |
Also found in: Wikipedia, Hutchinson | 0.05 sec. |
tokamakDevice used in nuclear-fusion research for magnetic confinement of plasma. It consists of a complex system of magnetic fields that confine the plasma of reactive charged particles in a hollow, doughnut-shaped container. The tokamak (an acronym from the Russian words for toroidal magnetic confinement) was developed in the mid-1960s by Soviet plasma physicists. It produces the highest plasma temperatures, densities, and confinement durations of any confinement device. tokamak [′täk·ə‚mak] (plasma physics) 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. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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Experiments with "hot" fusion, both in tokomak (magnetic) reactors and with inertial (laser powered) technologies, could still bring the power of the sun to Earth. Researchers have worked for years on billion-dollar projects like the Tokomak magnetic confinement apparatus at Princeton University to get energy from fusion. |
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