Strain and Magnetic-Field Characterization of a Bronze-Route Nb3Sn ITER Wire: Benchmarking of Strain Measurements Facilities at NIST and University of Twente

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Cheggour, N. and Nijhuis, A. and Krooshoop, H.J.G. and Lu, X.F. and Splett, J. and Stauffer, T.C. and Goodrich, L. and Jewell, M.C. and Devred, A. and Nabara, Y. (2012) Strain and Magnetic-Field Characterization of a Bronze-Route Nb3Sn ITER Wire: Benchmarking of Strain Measurements Facilities at NIST and University of Twente. IEEE transactions on applied superconductivity, 22 (3). 6086717 - . ISSN 1051-8223

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Abstract:A benchmarking experiment was conducted to compare strain measurement facilities at the National Institute of Standards and Technology (NIST) and the University of Twente. The critical current of a bronze-route Nb3Sn wire, which was fabricated for the International Thermonuclear Experimental Reactor (ITER), was measured as a function of axial strain and magnetic field in liquid helium at both institutes. NIST used a Walters' spring strain device and University of Twente used a bending beam (“Pacman”) apparatus. The ITER bronze-route wire investigated had a very high irreversible strain limit that allowed comparing data over a wide range of applied strain between -1% and +1%. Similarities of the data obtained by use of the two apparatuses were remarkable, despite the many differences in their design and techniques.
Item Type:Article
Copyright:© 2012 IEEE
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Science and Technology (TNW)
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Link to this item:http://purl.utwente.nl/publications/82283
Official URL:http://dx.doi.org/10.1109/TASC.2011.2177433
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