Joint project with EU involves more than 500 scientists and engineers and more than 70 companies

Joint project with EU involves more than 500 scientists and engineers and more than 70 companies

The world’s biggest operational experimental nuclear fusion reactor – a technology in its infancy but billed by some as the answer to humanity’s future energy needs – has been inaugurated in Naka, Japan.

Fusion differs from fission, the technique used in nuclear power plants, by fusing two atomic nuclei instead of splitting one.

The goal of the JT-60SA reactor is to investigate the feasibility of fusion as a safe, large-scale and carbon-free source of net energy – with more energy generated than is put into producing it.

The six-storey-high machine, in a hangar in Naka, north of Tokyo, comprises a doughnut-shaped “tokamak” vessel set to contain swirling plasma heated up to 200mC (360mF).

It is a joint project between the European Union and Japan, and is the forerunner for its big brother in France, the under-construction International Thermonuclear Experimental Reactor (ITER).

  • AutoTL;DRBEnglish
    1•1 year ago

    This is the best summary I could come up with:

    The world’s biggest operational experimental nuclear fusion reactor – a technology in its infancy but billed by some as the answer to humanity’s future energy needs – has been inaugurated in Naka, Japan.

    It is a joint project between the European Union and Japan, and is the forerunner for its big brother in France, the under-construction International Thermonuclear Experimental Reactor (ITER).

    Researchers at ITER, which is over budget, behind schedule and facing major technical problems, hope to achieve nuclear fusion technology’s holy grail, net energy.

    The EU energy commissioner, Kadri Simson, said the JT-60SA was “the most advanced tokamak in the world”, and called the start of operations “a milestone for fusion history”.

    The US government called the result a “landmark achievement” in the quest for a source of unlimited, clean power and an end to reliance on carbon-emitting fossil fuels that cause climate change as well as geopolitical upheaval.

    Unlike fission, fusion carries no risk of catastrophic nuclear accidents, such as the disaster in Fukushima in Japan in 2011, and produces far less radioactive waste than current power plants, its exponents say.

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