Tokamak concept

A tokamak is a device designed to produce nuclear fusion, the same process that powers the Sun. It uses powerful magnetic fields to contain and control extremely hot plasma—an ionized gas—so that atomic nuclei can fuse together. This fusion releases vast amounts of energy without greenhouse gases or long-lived radioactive waste. The tokamak’s doughnut-shaped (toroidal) chamber and magnetic coils work together to keep the plasma stable and confined at temperatures exceeding those of the Sun's core, making fusion a potentially sustainable and abundant energy source for the future.