Progress in Superconductivity and Cryogenics (한국초전도ㆍ저온공학회논문지)

The Korean Society of Superconductivity and Cryogenics (한국초전도저온학회)
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current profiles in a coated conductor with transport current

외부 전류가 흐를 때 초전도 선재에서의 전류 분포

  • 유재은 (한국과학기술원 물리학과) ;
  • 이상무 (한국과학기술원 물리학과) ;
  • 정예현 (한국과학기술원 물리학과) ;
  • 이재영 (배재대학교 물리학과) ;
  • 염도준 (한국과학기술원 물리학과)
  • Published : 2007.09.30
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Abstract

The current profiles in a coated conductor with transport current were calculated using an iterative inversion method from the data of the magnetic flux density profiles measured. The applied current was increased from 0 to 60 A by 10A step and decreased down to -60A by 20A step. The magnetic flux profiles were measured at a distance of 400 mm above the surface of the coated conductor using a scanning hall probe method. The current profiles calculated were very different from the Bean model: current density profile is not a constant in the critical region. However the aspect of the change of the current and magnetic flux density profiles in the case of decreasing applied current are similar to the theoretical calculations in Brandt's paper.

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References

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