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Report No.

Design and development of remote handling system of liquid lithium target in IFMIF-EVEDA

Miyashita, Makoto; Ida, Mizuho; Kondo, Hiroo; Watanabe, Kazuyoshi; Nakamura, Hiroo; Uenaka, Tsukasa*

International Fusion Materials Irradiation Facility (IFMIF) is an accelerator-based intense neutron source for testing candidate fusion materials. Development of the IFMIF is executed under IFMIF- Engineering Validation and Engineering design Activities (EVEDA) of Broader Approach (BA) agreement. Intense neutrons equivalent to neutron irradiation damage of about 50dpa/y are emitted inside the Li flow through a target assembly made of RAFM such as F82H. The activated target assembly should be remotely replaced at least every year. The target assembly has three flange connections. The lip seal joint structure is employed for the connection at the Li inlet pipe interface. Lip seal joint will be cut by fiber laser cutting/welding device (Laser Subsystem) in target/test cell (TTC) vessel containing the target assembly, and then the target assembly will be moved to access cell over the TTC vessel. A new target assembly will be installed in the TTC vessel.



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