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. Jenkins, E. Sartori, M.Q. Tran, J. Varje, P. Vincenzi, L. Zanotto

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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.
Original languageEnglish
Article number056026
Pages (from-to)-
JournalNuclear Fusion
Issue number5
Publication statusPublished - 30 Mar 2017
Externally publishedYes


All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics
  • Condensed Matter Physics

Cite this

Sonato, P., Agostinetti, P., Bolzonella, T., Cismondi, F., Fantz, U., Fassina, A., Franke, T., Furno, I., Hopf, C., Jenkins, I., Sartori, E., Tran, M. Q., Varje, J., Vincenzi, P., & Zanotto, L. (2017). Conceptual design of the DEMO neutral beam injectors: Main developments and R&D achievements. Nuclear Fusion, 57(5), -. [056026].