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Test Results of Central Magnetic Field and Field Uniformity of a High Temperature Superconducting Magnet With Gap

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6 Author(s)
Youngmin Kim ; Department of Electrical Engineering, Soonchunhyang University, Asan, Choongnam, Korea ; Myunghun Kang ; Myunghwan Ku ; Gueesoo Cha
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Due to the magnetic anisotropy of a High Temperature Superconducting (HTS) tape, inserting a gap between pancake windings can increase the central magnetic field and improve the field uniformity of HTS magnets consisting of pancake windings. Although inserting gaps with constant length can increase the central magnetic field, optimizing the length of each gap to maximize the central magnetic field is preferred. This paper shows the test results of HTS magnets with and without optimized gaps. Both magnets consisted of 12 BSCCO-2223 pancake windings. The test results were compared with the calculation results, and confirmed that the central magnetic field of the HTS magnet with optimized gap was increased compared with the HTS magnet without gap. The magnetic field uniformity of the HTS magnet was also improved.

Published in:

IEEE Transactions on Applied Superconductivity  (Volume:22 ,  Issue: 3 )