The DPC-TJ coil experiment was successfully carried out at the Japan A
tomic Research Institute (JAERI) in 1991. This coil was developed by T
oshiba and JAERI in collaboration to demonstrate the realization of su
perconducting coils for fusion with a high average current density of
40 A mm-2. The DPC-TJ coil was charged up to its rated current of 24 k
A (40 A mm-2) at 7.6 T without quench in the DPC test facility. Therea
fter electromagnetic performance was tested by measuring I(c) and T(cs
) values, and the critical current at 12 T was estimated at 41 kA. Man
y electromagnetic results were obtained, which are necessary for the d
esign of future fusion machines such as the International Thermonuclea
r Experimental Reactor (ITER).