Fabrication of a Bi-2212/Ag Pancake Coil Generating 6000 G at 4.2 K in 12 T

A Bi2Sr2CaCu2Oy (Bi-2212)/Ag single pancake coil with dimensions of 45 mm(outer)/13 mm(inner)×20 mm was fabricated by the wind, react and wind (W & R & W) method. The critical current of the coil was 230 A at 4.2 K in 12 T assuming the criterion as 10-13 Ωm. At this moment, a generated field of 6000 G was detected at the center position of the coil by the Hall probe measurement.