A little wonder, every day

ITER: plasma hotter than the Sun’s core

Документальне фото будівництва ITER у 2018 році; не сучасний стан готовності / Documentary photograph of ITER construction in 2018; not the current completion state. Credit: Oak Ridge National Laboratory; CC BY 2.0. https://creativecommons.org/licenses/by/2.0 Source: https://commons.wikimedia.org/?curid=74249979

Фотографія демонстраційного макета токамака ITER; модель, не діючий реактор / Photograph of an ITER tokamak display model; a model, not an operating reactor. Credit: Johannes Reimer; CC BY 4.0. https://creativecommons.org/licenses/by/4.0 Source: https://commons.wikimedia.org/?curid=128881182

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Документальне фото будівництва ITER у 2018 році; не сучасний стан готовності / Documentary photograph of ITER construction in 2018; not the current completion state. Credit: Oak Ridge National Laboratory; CC BY 2.0. https://creativecommons.org/licenses/by/2.0 Source: https://commons.wikimedia.org/?curid=74249979

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The international fusion experiment ITER is being built near Cadarache in southern France. Its target plasma temperature is about 150 million degrees Celsius, roughly ten times the temperature at the Sun’s core. This is a future experimental target, rather than an operating condition already achieved by ITER. The facility will study controlled fusion and will not generate electricity for the grid. Different cost estimates cannot simply be mixed: they depend on the period, currency and which contributions and expenses are counted.