Articles

Energy sector innovation: fusion research, new record for the European JET tokamak

The world's largest fusion experiment produced 69 megajoules of energy.

The 5-second experiment used 0,2 milligrams of fuel.

Estimated reading time: 4 minutes

Joint European torus

The Joint European Torus (JET), the largest nuclear fusion experiment in the world, achieved a new record of energy produced during the last and final experimental campaign, demonstrating the ability to reliably generate fusion energy.

Artist's concept of a fusion power plant, turning heat from the fusion reaction into clean, safe electricity.

The European EUROfusion consortium, following the verification and validation of the scientific data obtained in the deuterium and tritium (DT3) experiments at the end of 2023, has, in fact, announced today that on 3 October 2023 69 megajoules (MJ) of energy were obtained with 0,2 milligrams of fuel over 5 seconds, surpassing the previous world record of 59 MJ from 2022.

JET remote handling tool

Results of the experiments

The DT3 experimental campaign confirmed the ability to replicate and improve the results of the high-energy fusion experiments already obtained and demonstrated the reliability of JET's operational methodologies, essential for the success of the international ITER experimental reactor currently under construction.

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More than 300 scientists from all European fusion laboratories participated in the experiments, carried out on the European facility located at the UKAEA (United Kingdom), with a strong Italian participation in key scientific and organizational leadership roles.

DTE2 Fusion Reaction

EUROfusion and partners

The main European laboratories coordinated by EUROfusion contributed to the success of the experiments. Italy is a partner with ENEA, the National Research Council (mainly through the Institute for Plasma Science and Technology, Cnr-Istp), the RFX Consortium and some universities. The Joint European Torus (JET) thus concluded its experimental life. It was the largest European fusion plant, the only one capable of operating with a fuel mixture of deuterium and tritium, the same high-performance mixture that will be used in future fusion power plants.

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