The device, which was made to mimic the conditions found inside a burning star, produced a fusion pulse that lasted five seconds and released 69 megajoules of energy.
Had JET been a power plant instead of a test, the energy it contained might have supplied electricity to 12,000 households.
However, JET’s pulse would be her final one.
It is being decommissioned after forty years of fusion science.
It may seem strange to shut down JET given the promise of fusion power, which can produce almost infinite amounts of energy without emitting any emissions.
At the time, there was uncertainty regarding the feasibility of utilizing a device similar to JET’s design, which consists of a donut-shaped hollow vessel heated to 150 million degrees by magnets to hold and maintain a heavy hydrogen atom plasma.
However, JET’s thousands of scientists and engineers have now demonstrated that it is.
