MAGNETIC-FIELD PROPERTIES OF BI-2223 AG HTS COIL AT 77 K/

High T-c superconducting (HTS) (Bi,Pb)(2)Sr2Ca2Cu3O10+x Ag clad multif ilament wire, is used to prepare a HTS coil. Magnetic field behaviour of the HTS coil is studied at 77 K operation. Experiments carried out include magnetic field measurements of the HTS coil, DC magnetic field , AC magnetic field, and critical current ampere-turns when used as a magnetic core bias winding. The magnetic field distribution of the HTS coil is also investigated for use at 77 K with the anisotropic HTS wi re. The experimental results and analysis provide basic information fo r design and operation of a HTS coil made from the present HTS (Bi,Pb) (2)Sr2Ca2Cu3O10+x Ag clad wire. (C) 1997 Elsevier Science B.V.