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TOKAMAK

    Tokamak is an installation for hot plasma creation and for researches on nuclear fusion. Tokamak consists of a doughnut (a toroidal vacuum chamber) which surrounds a core of a great transformer. The chamber is filled with an ionized gas (deuterium or deuterium and tritium). The transformer causes magnetic field. The field induces electric current. The current causes gas discharges. The ionization and the heating of the gas increases. Finally hot plasma is created. It is held in a compact column inside the ring thanks to the strong magnetic field.
    First tokamak was built in 1950 in Moscow. In Great Britain there is a great tokamak called JET. On November the 9th 1991 an experiment was held in JET. The nuclear fusion reaction of deuterium and tritium was achieved:

(3 - 1)H + (2 - 1)H -› (4 - 2) He + (1 - 0)n + 17,6 MeV         (1)

    The reaction was held for about two hours and produced the power of about 1 megawatt. Other great tokamaks are TFTR-Princeton (USA) and JT-60 (Japan).



Atom - The Incredible WorldLineTeam # 19662