A tokamak (/ ˈ t oʊ k ə m æ k /; Russian: токамáк) is a device which uses a powerful magnetic field generated by external magnets to confine plasma in the shape of an axially symmetrical torus. [1]

A tokamak is a machine that confines a plasma using magnetic fields in a donut shape that scientists call a torus. Fusion energy scientists believe that tokamaks are the leading plasma confinement concept for future fusion power plants.

1 天前 · On 12 February, the CEA’s WEST machine was able to maintain a plasma for more than 22 minutes. In doing so, it smashed the previous record for plasma duration achieved with a tokamak. This leap forward demonstrates how our knowledge of plasmas and technological control of them over longer periods is becoming more mature, and offers hope that fusion …

2024年11月16日 · A tokamak is a device designed to hold plasma so we can bend it to our will, which ultimately is to replicate the fusion that takes place at the core of stars. On Earth, a plasma would...

The tokamak is an experimental machine designed to harness the energy of fusion; inside a tokamak, a fusion plasma is created and confined by strong magnetic fields. The energy produced through the fusion of atoms in the plasma is absorbed as heat in the walls of the vessel.

2 天之前 · It was the first tokamak to sustain a plasma in high-confinement mode at around 50 million degrees C for more than 60 seconds in 2016 and for more than 100 seconds in 2017. In 2023, EAST achieved ...

2025年1月10日 · Researchers are closing in on the potential of nuclear fusion, the process that powers the stars, as a clean and inexhaustible energy source. At the heart of this effort is the tokamak reactor design, which uses magnetic fields to confine plasma and maintain the necessary conditions for fusion. A