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Report No.

Preparation for lower port integration engineering for ITER diagnostic systems in JADA

Kitazawa, Sin-iti; Maruyama, Toshiyuki; Ogawa, Hiroaki; Itami, Kiyoshi; Casal, N.*

In ITER, there are 18 ports in the upper, equatorial, and lower levels, which serve various purposes such as vacuum, heating, remote handling, and diagnostics. Several diagnostics will be integrated in Lower Port #2 (LP#02): divertor equilibrium sensors, divertor shunts, divertor Rogowski coils, divertor toroidal coils, divertor neutron flux monitors, divertor impurity monitor (DIM), pressure gauges, Langmuir probes, and divertor thermocouples. The engineering aspects of integrating the components in LP#02 are within the scope of Japan Domestic Agency (JADA) procurement. The components in the LP#02 procurement package are the port plug assembly, interspace assembly, port cell assembly and tooling. This integration requires the assemblies to be manufactured as fully integrated components and external interfaces. In the current phase, JADA identified technical issues, and implemented thermal and structural analysis on within the specified design conditions.



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