Installation of a versatile multiaperture negative ion source

M. Cavenago, G. Serianni, V. Antoni, M. Barbisan, M. Bigi, M. De Muri, E. Fagotti, F. Fellin, T. Kulevoy, A. Minarello, R. Pasqualotto, S. Petrenko, M. Poggi, M. Recchia, F. Rossetto, M. Sattin, M. Valente, P. Veltri

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Neutral Beam Injectors (NBI), which need to be strongly optimized in the perspective of DEMO reactor, request a thorough understanding of the negative ion source used and of the multi-beamlet optics. A relatively compact RF ion source, named NIO1 (Negative Ion Optimization 1), with 9 beam apertures for a total H-current of 130 mA, 60 kV acceleration voltage, is being installed at Padua, in Consorzio RFX, to provide a test bench for source optimizations in the framework of the accompanying activities in support to the ITER NBI test facility. NIO1 construction and status of the overall installation, including a high voltage deck and an optical cavity ring down spectrometer are here summarized and reported. Plasma and low voltage beam operations are discussed. Development of a sampling beam calorimeter (with small sampling holes, and a segmented cooling circuit) is also discussed.
Original languageEnglish
Article number02A704
Pages (from-to)-
JournalReview of Scientific Instruments
Issue number2
Publication statusPublished - 1 Feb 2014
Externally publishedYes


All Science Journal Classification (ASJC) codes

  • Instrumentation

Cite this

Cavenago, M., Serianni, G., Antoni, V., Barbisan, M., Bigi, M., De Muri, M., ... Veltri, P. (2014). Installation of a versatile multiaperture negative ion source. Review of Scientific Instruments, 85(2), -. [02A704].