Status of development of Lithium Target Facility in IFMIF/EVEDA project

Wakai, Eiichi  ; Kondo, Hiroo; Kanemura, Takuji; Hirakawa, Yasushi ; Furukawa, Tomohiro  ; Hoashi, Eiji*; Fukada, Satoshi*; Suzuki, Akihiro*; Yagi, Juro*; Tsuji, Yoshiyuki*; Yokomine, Takehiko*; Nakaniwa, Koichi; Ito, Yuzuru; Tanaka, Hiroshi; Sugimoto, Masayoshi; Ohira, Shigeru; Knaster, J.*

In the IFMIF/EVEDA (International Fusion Materials Irradiation Facility/ Engineering Validation and Engineering Design Activity), the validation tests of the EVEDA lithium test loop with the world's highest flow rate of 3000 L/min was succeeded in generating a 100 mm-wide and 25 mm-thick free-surface lithium flow steadily under the IFMIF operation condition of a high-speed of 15 m/s at 250C in a vacuum of 10 Pa. Some excellent results of the recent engineering validations including lithium purification, lithium safety, and remote handling technique were obtained, and the engineering design of lithium facility was also evaluated. These results will advance greatly the development of an accelerator-based neutron source to simulate the fusion reactor materials irradiation environment as an important key technology for the development of fusion reactor materials.