EM analysis of ITER diagnostics upper port plugs 14 and 11 during plasma disruptions

International thermonuclear experimental reactor (ITER) diagnostic port plugs perform many functions including nuclear shielding and structural support of diagnostic system, while allowing for diagnostic access to the plasma. With design advancing, the in-port diagnostic components are integrated into the port plug structure, and the diagnostic shield modules (DSMs) are customized to accommodate various in-port diagnostic components. This paper summarizes results of transient electromagnetic analysis using Opera 3-D in support of recent design activities for ITER diagnostic upper port plug 14 (UPP14) and upper port plug 11 (UPP11). A complete distribution of disruption loads on each component in the two ports is presented. Impacts of different design features to the electromagnetic loads are discussed.