@article{oai:repo.qst.go.jp:00048205,
 author = {江里, 幸一郎 and 鈴木, 哲 and 関, 洋治 and 山田, 弘一 and 平山, 智之 and 横山, 堅二 and Escourbiac, F. and T., Hirai and 江里 幸一郎 and 鈴木 哲 and 関 洋治 and 山田 弘一 and 平山 智之 and 横山 堅二},
 journal = {Fusion Engineering and Design},
 month = {Jun},
 note = {Japan Atomic Energy Agency (JAEA) is in progress for technology demonstration toward Full-tungsten (W) ITER divertor outer vertical target (OVT), especially, W monoblock technology that needs to withstand the repetitive heat load as high as 20 MW/m2 for 10 s. Under the framework of the W divertor qualification program developed ITER organization, JAEA as Japanese Domestic Agency (JADA) manufactured seven full-scale plasma-facing unit (PFU) prototypes with the Japanese industries. Four prototypes that have 146 W monoblock joint with casted copper (Cu) interlayer passed successfully the ultrasonic testing. In the other three prototypes that have the different W/Cu interlayer joint, joint defects were found. The dimension measurements reveal the requirements of the gap between W monoblocks and the surface profile of PFU are feasible.},
 pages = {1256--1260},
 title = {Progress of ITER full tungsten divertor technology qualification in Japan: Manufacturing full-scale plasma-facing unit prototypes},
 volume = {109-111},
 year = {2016}
}