Speaker
Description
The US Domestic Agency is one of the six suppliers of the Toroidal Field (TF) conductor for ITER. In order to qualify conductors according to the ITER requirements, we prepared or provided to the Swiss Plasma Center (SPC) eight test articles, sixteen conductors total, that were tested in the SULTAN facility at SPC in the ITER relevant conditions. We also fully characterized the strands that were used in these SULTAN samples. In this paper, we report both test results and analysis of the conductors’ performance against expected strand performance. The US TF conductors showed a little better than average current sharing temperature and a relatively low sensitivity to warm up-cooldown cycles in comparison with other suppliers. However, the trend in current sharing temperature versus cycles and warm ups did not saturate, which means continuing slow degradation of the conductor performance if number of warm up and cooldown cycles will be significantly higher than expected. The AC losses in the conductors are in line with losses in the other TF conductor suppliers.
This manuscript has been authored by UT-Battelle, LLC under Contract No. DE-AC05-00OR22725 and by Lawrence Livermore National Security, LLC, under Contract No. DE-AC52-07NA27344 with the U.S. Department of Energy. The United States Government retains and the publisher, by accepting the article for publication, acknowledges that the United States Government retains a non-exclusive, paid-up, irrevocable, world-wide license to publish or reproduce the published form of this manuscript, or allow others to do so, for United States Government purposes. The Department of Energy will provide public access to these results of federally sponsored research in accordance with the DOE Public Access Plan(http://energy.gov/downloads/doe-public-access-plan).
| Eligible for student paper award? | No |
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