The EHR magnet system conceptual design

The results of the EHR (Experimental Hybrid Reactor) magnet conceptual design are presented. The EHR magnet systems include the toroidal field (TF) magnet system, the poloidal field (PF) magnet system, and the in-vessel plasma active control coils. The TF and PF magnet systems are superconductive to satisfy the steady state operation of the EHR. The plasma active control coils are water-cooled normal copper coils. The TF and PF magnet systems are designed to be semipermanent, i.e. they are not expected to be repaired or replaced during the life time of the machine, because they are the core of the basic machine. Thus, the problem of achieving high reliability is a key problem of the magnet design. It is concluded that the magnet system concept design meets the requirements specified in the EHR terms of reference