Thirty years ago, on 25 June 1983, the Joint European Torus (JET) came to life with a flash of plasma. “There was an air of hushed expectancy as the countdown for the first plasma attempt progressed,” remembers Phil Morgan, then an optical spectroscopy specialist who had joined the project the year before. “A suppressed gasp was heard as on one of the TV screens the machine appeared to tilt when the magnetic field was switched on—then loud laughter as people realized that the field was distorting the image recorded by the TV camera.”

This anecdote and many others were shared on 24-25 June as JET and ITER personnel, connected by video link, assembled to commemorate the event that, 30 years ago, opened a new era in the history of fusion.

In the ITER Council Room, where some 25 former members of JET’s staff had gathered around the head of ITER’s CODAC, Heating & Diagnostics Directorate, Paul Thomas, and at Culham, where participants were hosted under a tent, participants remembered with equal emotion the intensity of the peak plasma current that was achieved on that day and the taste of the minestrone soup prepared by the wife of Franco Bombi, then head of JET’s Control and Data Acquisition System.

To Paul, and many others who now are part of the ITER team, JET provided “invaluable experience.” Thirty years after its first plasma and two decades after its first burst of fusion power on 9 November 1991, “JET is the key device to resolve many of the challenges that we are facing,” (Mike Walsh, head of Diagnostics); “Its input is critical for our commissioning plan,” (Ken Blackler, head of Assembly & Operations); “It continues to deliver important results that provide direct input, even today, in our design decisions,” (Günther Janeschitz, Engineering Officer).

The posters decorating the conference room at Culham for this two-day celebration read: “30 years of JET — Paving the way to ITER’s take-off.” ITER Director of Plasma Operation David Campbell, who made the trip to JET, stressed this important mission in his speech, broadcast live: “JET provides substantial training for those who will operate ITER.”

2 Comments on "JET: The fellowship of the Plasma Ring"

BillT on Wed, 10th Jul 2013 12:58 am 



Wow! Whatever happened to the garage inventor in coveralls and cold black coffee? That room alone cost many millions. These guys probably wear Armani suits to work and drink lattes on the public dime.

Proves that there are still too many gullible people with money to be separated from. But, that time is fleeting … as is any chance for this dream to materialize.

Arthur on Wed, 10th Jul 2013 11:11 am 



To play the devil’s advocate: there would be no solar (and thus wind) energy without fusion. Fusion energy is the only source of energy that exists (apart from fission), the rest, including life (and thus oil) itself, is derived from it. The fusion idea in itself has merit, but the technological problems are enormous. Better stick with the solar/wind treehugger derivative for at least a generation or so.