Neutronics analysis of the visible infrared wide angle viewing system in equatorial port #12 of ITER

The ITER Equatorial Visible and InfraRed Wide Angle Viewing System (VisIR WAVS) is a major system for the monitoring of the components facing the plasma. It is of utmost importance as it is involved in the machine protection, in basic and advanced controls, and in physics analyses. The diagnostic reaches the final phase of its design for the Equatorial Port #12 (EP#12) and IRFM designed a very detailed model for the In-Vessel part with three lines of sight implemented in EP#12. This paper presents the neutronics analyses that have been performed in the framework of two contracts with Fusion for Energy F4E, the FPA-407/SG#04 and GRT-1146 grants. The nuclear analyses covered mode-0 for the nuclear heating calculations in supply to the thermomechanical analyses.