Magnetics Aspects of Martensitic Stainless Steels as Structural Materials for Tokamak Reactors

摘要

Martensitic 9 to 12% chromium steels may offer significant advantages as a first wall/blanket material in terms of greater wall lifetime in comparison with commonly considered materials such as 20CW316. To evaluate the magnetics impact of a ferromagnetic blanket in a tokamak reactor, studies reported here have focused on two potential problem areas: the effects on plasma performance and the impact on the mechanical design of the blanket. A 3-D field code IRON allowing the presence of saturable ferromagnetic material was developed to facilitate the investigation. (ERA citation 05:009512)