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:
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).
SUBSEQUENT RESEARCH OF ELECTRON | ATTEMPTS OF ELEMENTARY CHARGE EVALUATION | DISCOVERY AND RESEARCH OF X RAYS | RADIOACTIVITY | KELVIN'S-THOMSON'S ATOMIC MODEL | QUANTYM THEORY - THE NEW GREAT IDEA | BOHR'S ATOMIC STRUCTURE MODEL | IMPROVED BOHR'S THEORY | ELECTON BEING A WAVE | PARTICLE ACCELERATORS | CHERNOBYL | CHERNOBYL TOWARDS POLAND | NUCLEAR PLANTS AND ENVIRONMENT | PROPABILITY WAVE AND INDETERMINACY PRINCIPLE | ATOMIC NUCLEUS | MORE ABOUT QUANTUM NUMBERS | NEUTRINOS | NEUTRONS | POSITRONS | NUCLEAR REACTIONS | NUCLEAR REACTOR | FURTHER RESEARCH OF RADIOACTIVITY | DETAILED RELATIVITY THEORY | TOKAMAK | FISSON AND NUCLEAR SYNTESIS | ATOMIC BOMB