Design of the CS insert coil

The Engineering Design Activity (EDA) of international Thermonuclear Experimental Reactor (ITER) has been carried out since 1992 among the four Parties which are European Union, Japan, Russian Federation, and United States. The design anf the fabrication of the Center Solenoid(CS) model coil is under way in the ITER-EDA. The CS model coil consists of four parts, which are the outer module, the inner module, insert, and the supporting structure, The design of the CS insert coil is reported and discussed. The inner diameter of the CS insert coil is 1.5 m. The conductor of the CS insert coil is the same as that of the ITER-CS coil. The CS insert coil will be installed inside the CS model coil. The conductor performance will be demonstrated on the maximum magnetic flux density of 13 T at the test facility of Japan Atomic Energy Research institute (JAERI).