The Japanese LCT coil

The Large Coil Task (LCT) is providing all of the participants with new experiences through international hardware collaboration. The objectives of LCT are both to demonstrate an 8 T field in a large toroidal configuration and to compare performance features of 6 different coils. Almost ten years has passed for this work since the beginning. Design, verification testing, and fabrication evolved in parallel with construction of test facilities which required as much advanced technology as the coils themselves. Now the project is at the final stage and is providing experimental data on the performance of the six large superconducting coils. The paper is prepared for the round table discussion and describes the design parameters, domestic test results, and full torus test results of the Japanese LCT coil.