Abstract
The “Large Coil Task (LCT)”, an international project of technology development under the auspices of the IEA, is performed to develop large superconducting toroidal coils for tokamaks. The participants are the U.S.A., Switzerland, Euratom, and Japan. Among the six coils being developed under this program, domestic single coil tests of the pool boiling cooled Japanese coil and the forced flow cooled Euratom coil were carried out successfully in June 1982 and in April 1984, respectively. These two LCT coils are the first to compare experimentally the characteristics of pool boiling cooled and forced flow cooled large coils for a tokamak. Major results obtained in the two domestic tests are described for the purpose of intercomparison of the two designs.
