Development of EC H&CD launcher components for fusion device

Design study of a new antenna system for steering microwave beam in electron cyclotron heating/current drive system

“…However, some components needed in the antenna will encounter difficulties in reactor environments because of high neutron flux. For the international thermonuclear experimental reactor (ITER), antenna designs were achieved [4][5][6] steerable flat mirrors that were subjected to durability tests for high neutron flux and thousands of repeated operations. The remote steering concept [7] is also an effective method to reduce the neutron influence on the rotatable mirror mechanism by using a special rectangular waveguide.…”

An alternative ECRH front steering launcher for the ITER upper port

“…Whereas, the front steering (FS) launcher offers an extended angular range (∼±20 • ) and a narrower spot size at the resonance. An FS launcher is already being planned for the equatorial port [4] where thermal and radiation fluxes are, in fact, higher than at the upper port. In light of this, an alternative FS launcher for application on the ITER upper port is proposed [2].…”