Fusion refers to the process where atomic nuclei combine to form heavier elements, releasing vast amounts of energy. In tokamak fusion, this is achieved by confining superhot plasma within a doughnut-shaped magnetic field.
Fusion offers a virtually limitless source of clean energy with minimal waste and no greenhouse gases or long-lived radioactive materials like fission reactors produce.
A tokamak uses powerful magnets arranged in a toroidal (doughnut) shape to create a strong magnetic field that confines and heats a hydrogen plasma to incredibly high temperatures. The heat triggers fusion reactions, releasing energy which can be harnessed for power generation.
Tokamak components are complex and require precision engineering. The magnets, especially, must be highly conductive to handle the high currents needed for magnetic confinement at superhot temperatures.
Construction involves setting up the tokamak vessel, installing and cooling the magnets, vacuum pumping systems, heating and fueling systems, and diagnostics equipment. Testing phases include plasma initiation, sustaining fusion, and optimizing performance.
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