Demonstration of Li target facility in IFMIF/EVEDA project: Li target stability in continuous operation of entire system

•The EVEDA Li test loop (ELTL) is a main activity in the Li target facility of the IFMIF/EVEDA project.•A long-term operation of the entire system as a demonstration of the Li target facility is presented.•The Li target was continuously operated with a cold trap for 571h.•The Li target essentially s...

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Bibliographic Details
Published inFusion engineering and design Vol. 109-111; pp. 1759 - 1763
Main Authors Kondo, Hiroo, Kanemura, Takuji, Furukawa, Tomohiro, Hirakawa, Yasushi, Wakai, Eiichi, Knaster, Juan
Format Journal Article
LanguageEnglish
Published Elsevier B.V 01.11.2016
Subjects
Beam target
IFMIF/EVEDA
Liquid metal
Neutron source
Neutron source
Beam target
Liquid metal
IFMIF/EVEDA
Li
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Summary:•The EVEDA Li test loop (ELTL) is a main activity in the Li target facility of the IFMIF/EVEDA project.•A long-term operation of the entire system as a demonstration of the Li target facility is presented.•The Li target was continuously operated with a cold trap for 571h.•The Li target essentially satisfied the stability requirement of <±1mm. The International Fusion Materials Irradiation Facility (IFMIF) is an accelerator-based D+-Li neutron source in which two 40-MeV-D+ beams with a total current of 250mA are injected into a liquid Li stream flowing at 15m/s (Li target). The EVEDA Li test loop (ELTL), which simulates the hydraulic conditions of the Li target and a part of the purification system envisaged in IFMIF, is a main activity in the Li target facility of the IFMIF/EVEDA project and has been implemented under the Broader Approach (BA) agreement since 2007. The key issues to be validated in ELTL were as follows: (1) validation of the Li target, Li target diagnostics, and cold trap (CT), and (2) validation of long-term operation. This study describes the stability of the Li target in an integrated long-term operation run of the entire system as a demonstration of the IFMIF Li target facility. The Li target was continuously operated with the CT for 571h, and its stability was evaluated periodically using a high-precision Li target diagnostic. Therefore, the Li target essentially satisfied the stability requirement of <±1mm throughout the continuous operation.
ISSN:0920-3796
1873-7196
DOI:10.1016/j.fusengdes.2015.09.016