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Conferences


Europe completes TF strand qualification

-Alex Vostner, ITER Magnets Division

Share the responsibility for the conductor qualification: Alex Vostner, Carlo Sborchia (F4E) and Arnaud Devred, Leader of the ITER Superconductor Section.  (Click to view larger version...)
Share the responsibility for the conductor qualification: Alex Vostner, Carlo Sborchia (F4E) and Arnaud Devred, Leader of the ITER Superconductor Section.
Following the qualification process required for the ITER conductors, the European Domestic Agency Fusion for Energy (F4E), has launched a series of Conductor Performance Qualification Samples (so-called CPQS).

After the successful test of the fourth European sample EUTF4 in June 2009, F4E has signed a first contract for the supply of more than 58 tons of niobium-tin (Nb3Sn) strand for the TF conductors with Oxford Superconducting Technology this August. The quantity is equivalent to about 60% of the total European Nb3Sn contribution, and with a volume of approximately 40 Million Euro this contract represents one of the largest F4E has placed so far for the ITER project.

And there is more good news: This week, the EUTF5 sample made of Nb3Sn strand produced by Bruker EAS in Germany completed 1,000 load cycles with a final current sharing temperature (Tcs) above 6 K, thus meeting ITER's TF conductor design criteria of 5.7 K.


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