DT-time at JET

The last time EUROfusion’s flagship device JET saw a Deuterium-Tritium (DT) campaign was more than 3 decades ago, back in 1997. But soon the world’s largest tokamak and the only one capable of using the DT fuel, the fusion fuel of the future, will back in action with DT experiments. And a lot has changed since the previous DT campaign. JET now has some brand-new set of diagnostics, enhanced heating power, real-time networks and the much talked about ITER-like wall made of beryllium and tungsten.

While the new 100% tritium and DT campaigns are scheduled for 2019 and 2020, preparations have been going on for years in order to ensure that the fusion community draws the most from the upcoming campaigns. The ‘rehearsal’ experiments, which aimed to get JET ready for the 2019-2020 DT campaign, concluded in the November of 2016 and gave results that were much better than expected.

“Right now, it is the best time to be at JET”, says Eva Belonohy who is part of JET’s Exploitation Unit. In view of the DT experiments, Eva organised a JET ‘refresher’ course in early 2018. The course delivered a complete overview about the machines’ latest features to the researchers and technicians who gathered at the Culham Centre for Fusion Energy to attend the training. The June 2018 edition of Fusion in Europe carries an article “Now is the time to be at JET”, which provides more information about the JET refresher and gives a taste of the excitement at JET.

JET quick facts

Plasma radius (R): 2.96 m; Plasma volume: 100 m3; Magnetic field: 3.45 T (toroidal)