Superconducting fusion magnet system – ITER
July 19 , 2025
16 hrs 0 min
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- The world’s largest and most powerful device being built for clean energy reached an important milestone in 2025.
- The International Thermo-Nuclear Experimental Reactor (ITER) Project is now currently under construction in a 180-hectare site in Southern France.
- Over 30 countries, including India, are collaborating to build the world’s largest tokamak.
- It is a magnetic fusion device to prove the feasibility of nuclear fusion as a large-scale and carbon-free source of energy.
- Nuclear fusion generates energy through merging of two light nuclei to form a single heavier nucleus.
- Fusion reactions power the Sun and other stars.
- ITER aimed at demonstrating that nuclear fusion can be a safe, carbon-free, and sustainable energy source.
- It uses the deuterium and tritium (hydrogen isotopes) to undergo the fusion at temperatures over 150 million °C.
- Its goal is to achieve a fusion gain (Q) of 10, producing 500 megawatts of fusion power from just 50 megawatts of input heating power, a 10x gain.

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