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Report No.

Current status of design, R&D toward ADS target irradiation facility, TEF-T

Okubo, Nariaki  ; Saito, Shigeru  ; Obayashi, Hironari ; Sasa, Toshinobu  

In the ADS plant, the target window material will be heavily irradiated under the severe condition. Degradation of the mechanical properties, size change of the components and erosion/corrosion of the material surface after irradiation in the LBE flow should be suppressed within a range permissible for the ADS system design. Material irradiation experiments in the transmutation experimental facility (TEF-T), which is planned in JAEA, will realize the first ADS plant in near future. Overview of the material irradiation and PIE plan by using TEF-T including R&D of LBE corrosion test loop and elemental key technology toward TEF-T and ADS will be shown in this presentation. In order to select candidate materials prior to TEF-T irradiation, triple ion irradiations of Fe, He and H ions were conducted for ferritic/martensitic steels, T91 in TIARA. The swelling behavior of T91 irradiated at temperature from 350 to 550$$^{circ}$$C will be also discussed.



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