TITLE

Open-type hybrid magnetic shield using high-T[sub C] superconducting wire and flexible magnetic sheets

AUTHOR(S)
Seki, Yusuke; Suzuki, Daisuke; Ogata, Kuniomi; Tsukada, Keiji
PUB. DATE
February 2003
SOURCE
Applied Physics Letters;2/10/2003, Vol. 82 Issue 6, p940
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
An open-ended, cylindrical magnetic shield using high-T[sub C] superconducting rings and flexible magnetic sheets has been developed. The superconducting ring is made of Bi[sub 2]Sr[sub 2]Ca[sub 2]Cu[sub 3]O[sub x] tape wire, and the flexible magnetic sheet is made of Fe-Cu-Nb-Si-B nanocrystalline alloy, which has superior soft magnetic properties. The superconducting rings are set near the open ends of a ferromagnetic cylinder. When a magnetic field is induced in the rings, a shielding current flows so as to keep the magnetic flux through the ring constant. It is concluded that the superconducting rings effectively increase the shielding factor of a magnetic shield.
ACCESSION #
9036488

 

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