Nuclear Science and Techniques

《核技术》(英文版) ISSN 1001-8042 CN 31-1559/TL     2018 Impact factor 0.961

Nuclear Science and Techniques ›› 2003, Vol. 14 ›› Issue (1): 76

• ADVANCED NUCLEAR INSTRUMENTATION AND DETECTION • Previous Articles     Next Articles

The AC losses measurement and analysis of superconducting NbTi CICC for HT-TU superconducting Tokamak

FANG Jin1, WENG Pei-De2, CHEN Zhuo-Min2, CHEN Jing-Lin2, WANG Fu-Tang2, HAN Zheng-He1   

  1. 1Applied Superconductivity Research Center, Tsinghua University, Beijing 100084;
    2Institute of Plasma Physics,the Chinese Academy of Sciences, Hefei 230031
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FANG Jin, WENG Pei-De, CHEN Zhuo-Min, CHEN Jing-Lin, WANG Fu-Tang, HAN Zheng-He. The AC losses measurement and analysis of superconducting NbTi CICC for HT-TU superconducting Tokamak.Nuclear Science and Techniques, 2003, 14(1): 76

Abstract: Superconducting TF and PF coils have been measured in SULTAN test facility. Segregated copper strands are included in four NbTi CICC and this is a technical innovation. Two AC losses measurement methods, calorimetric and electromagnetic methods, have been used in the experiments, and a broad frequency range (from 0.05 Hz to 6 Hz) is covered in sample test. The purpose of this experiment was to investigate AC losses of TF and PF CICC conductor including segregated copper and to check the design of PF and TF CICC coated with different resistive barriers (Pb–30Sn-2Sb and Ni plating on NbTi strands).

Key words: Cable-in-conduit conductor, Coupling loss time constant, Sn and Ni plated conductor, Contact resistance