量研学術機関リポジトリ「QST-Repository」は、国立研究開発法人 量子科学技術研究開発機構に所属する職員等が生み出した学術成果（学会誌発表論文、学会発表、研究開発報告書、特許等）を集積しインターネット上で広く公開するサービスです。 Welcome to QST-Repository where we accumulates and discloses the academic research results(Journal Publications, Conference presentation, Research and Development Report, Patent, etc.) of the members of National Institutes for Quantum Science and Technology.
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Accelerator-driven fusion neutron sources, e.g. A-FNS and DONES, are being designed, based on the IFMIF/EVEDA results, for neutron irradiation test of fusion reactor materials. A purpose of the study is to evaluate analytically the deformation of the Li free surface potentially caused by the beam pressure. A new 2-D fluid model of the beam-on target of an IFMIF-type fusion neutron source has been developed by extending the existing 2-D model of the Li target flow of the EVEDA Lithium Test Loop (ELTL). The analytical formula of the thickness of the beam-on target in the flow direction has been derived with accounting for the beam pressure effect. Evaluation the deformation of the thickness of the beam-on target of a fusion neutron source A-FNS, being designed in QST, Japan, is presented. The analytical results presented here may be used for a benchmark of more complicated CFD simulation for the beam-on-target design of IFMIF-type fusion neutron sources, e.g. A-FNS and DONES.
会議概要（会議名, 開催地, 会期, 主催者等）
The 18th International Conference on Fusion Reactor Materials
Impact of the beam pressure on the free surface of the liquid lithium target of fusion neutron sources
