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Conceptual design of the DEMO neutral beam injectors: main developments and R&D achievements

P. Sonato, P. Agostinetti, T. Bolzonella, F. Cismondi, U. Fantz, A. Fassina, T. Franke, I. Furno, C. Hopf, I. Jenkins2017年被引用 47Nuclear FusionIF 3出版社

The objectives of the nuclear fusion power plant DEMO, to be built after the ITER experimental reactor, are usually understood to lie somewhere between those of ITER and a 'first of a kind' commercial plant. Hence, in DEMO the issues related to efficiency and RAMI (reliability, availability, maintainability and inspectability) are among the most important drivers for the design, as the cost of the electricity produced by this power plant will strongly depend on these aspects. In the framework of the EUROfusion Work Package Heating and Current Drive within the Power Plant Physics and Development activities, a conceptual design of the neutral beam injector (NBI) for the DEMO fusion reactor has been developed by Consorzio RFX in collaboration with other European research institutes. In order to improve efficiency and RAMI aspects, several innovative solutions have been introduced in comparison to the ITER NBI, mainly regarding the beam source, neutralizer and vacuum pumping systems.

日本語訳

ITER実験炉の後に建設される核融合発電所DEMOの目的は、通常、ITERと「初号機」商業プラントの間にあると理解されている。したがって、DEMOでは、効率とRAMI(信頼性、稼働率、保守性、検査性)に関連する問題は、この発電所によって生産される電力のコストがこれらの側面に強く依存するため、設計の最も重要な駆動要因の一つである。発電所物理および開発活動内のEUROfusion作業パッケージ「加熱および電流駆動」の枠組みにおいて、DEMO核融合炉用の中性粒子ビーム入射装置(NBI)の概念設計が、Consorzio RFXによって他の欧州の研究機関との協力のもと開発された。効率とRAMIの側面を改善するために、ITER NBIと比較していくつかの革新的な解決策が導入されており、主にビーム源、中和器、真空排気システムに関するものである。

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DEMONeutral beamNeutral beam injector
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