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

被引:10
作者
Cheggour, N. [1 ]
Nijhuis, A. [2 ]
Krooshoop, H. J. G. [2 ]
Lu, X. F. [1 ]
Splett, J. [1 ]
Stauffer, T. C. [1 ]
Goodrich, L. F. [1 ]
Jewell, M. C. [3 ]
Devred, A. [3 ]
Nabara, Y. [4 ]
机构
[1] NIST, Boulder, CO 80305 USA
[2] Univ Twente, NL-7500 AE Enschede, Netherlands
[3] ITER Org, F-13115 St Paul Les Durance, France
[4] Japan Atom Energy Agcy, Naka, Ibaraki 3110193, Japan
关键词
Benchmarking; ITER; niobium-tin; strain; AXIAL STRAIN; TEMPERATURE; DEPENDENCE; DEVICE;
D O I
10.1109/TASC.2011.2177433
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
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.
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页数:4
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