抄録
The equatorial launcher (EL) has been designed with the poloidal steering with the 20MW beam injection to plasma, expecting the enhancement of driven current at the peripheral region of plasma, ρ = 0.4 〜 0.6. The millimeter (mm)-wave design to attain the poloidal beam steering with transmission efficiency of 99% has been successfully obtained and the structural design of the launcher components such as blanket shield modules (BSMs), port plug and so on are also modified based on the mm-wave design modification. This modification ensures that mm wave beams from both middle and bottom beam row pass through the same BSM opening and will leads to the neutron shielding potential. The electromagnetic analysis of the modified EL shows that induced force and momentum torque on the BSMs and entire EL structure are below the mechanical criteria of the support structure of each BSMs and EL port plug flange.
