Bi(2223)超导体的磁屏蔽效应

The Magnetic Shielding Effect for the Bi(2223) Superconductor

研究了Ｂｉ（２２２３）超导体磁屏蔽筒的磁屏蔽效应，从而得出磁屏蔽效果与超导体的屏蔽空间大小有关，以及将０．３ｍｍ厚的软铁筒放于两超导体屏蔽筒之间，可使磁屏蔽效果提高为单超导体屏蔽筒的２１倍的结论。

In this paper, the magnetic shielding effect of the magnetic shielding cylinders is studied. We obtain the conclusions that the shielding result is related to the density of the critical electric current and the size of the shielding space, and the shielding result is increased to twentyone times the shielding result of the single superconductor shielding cylinder by putting a 0.3mm thick soft iron cylinder between the two superconductor cylinders.