Abstract
The ITER Neutral Beam Test Facility (NBTF), called PRIMA (Padova Research on ITER Megavolt Accelerator), is hosted in Padova, Italy and includes two experiments: MITICA, the full-scale prototype of the ITER heating neutral beam injector, and SPIDER, the full-size radio frequency negative-ions source. The NBTF realization and the exploitation of SPIDER and MITICA have been recognized as necessary to make the future operation of the ITER heating neutral beam injectors efficient and reliable, fundamental to the achievement of thermonuclear-relevant plasma parameters in ITER. This paper reports on design and R&D carried out to construct PRIMA, SPIDER and MITICA, and highlights the huge progress made in just a few years, from the signature of the agreement for the NBTF realization in 2011, up to now—when the buildings and relevant infrastructures have been completed, SPIDER is entering the integrated commissioning phase and the procurements of several MITICA components are at a well advanced stage.
Highlights
Efficient and reliable operation of the Heating Neutral Beam Injectors (HNB) [1] is required to achieve thermonuclear-relevant plasma parameters in ITER, a fundamental step on the path towards unlimited sources of clean fusion energy
This paper has given a complete overview of the ITER Neutral Beam Test Facility, called PRIMA, and its two experiments: MITICA, the full-scale prototype of the ITER HNB injector; and SPIDER, the full-size radio frequency negative-ion source
The motivations behind the Neutral Beam Test Facility (NBTF) construction, the mission of the two experiments: SPIDER and MITICA, the main challenges encountered during their design and the specific R&D to verify the feasibility of key parts have been discussed
Summary
D Marcuzzi, N Pomaro, G Serianni, P Agostinetti , M Agostini, V Antoni, D Aprile, C Baltador, M Barbisan, M Battistella, M Boldrin, M Brombin, M Dalla Palma, A De Lorenzi, R Delogu, M De Muri, F Fellin, A Ferro, A Fiorentin, G Gambetta, F Gnesotto, L Grando, P Jain, A Maistrello, G Manduchi, N Marconato, M Moresco, E Ocello, M Pavei, S Peruzzo, N Pilan, A Pimazzoni, M Recchia, A Rizzolo, G Rostagni, E Sartori, M Siragusa, P Sonato, A Sottocornola, E Spada1,. M Singh, T Bonicelli, G Agarici, A Garbuglia, A Masiello, F Paolucci, M Simon, L Bailly-Maitre, Commons Attribution 3.0 E Bragulat, G Gomez, D Gutierrez, G Mico, J-F Moreno, V Pilard, M Kashiwagi, M Hanada, H Tobari, licence. K Watanabe, T Maejima, A Kojima, N Umeda, H Yamanaka, A Chakraborty, U Baruah, C Rotti, Any further distribution of this work must maintain. H Patel, M V Nagaraju, N P Singh, A Patel, H Dhola, B Raval, U Fantz, B Heinemann, W Kraus, attribution to the. S Hanke, V Hauer, S Ochoa, P Blatchford, B Chuilon, Y Xue, H P L De Esch, R Hemsworth, G Croci, author(s) and the title of the work, journal citation. 11 Dipartimento di Fisica ‘G Occhialini’, Università di Milano-Bicocca, Milano, Italy. 14 ENEA, National Institute of Ionizing Radiation Metrology, C R Casaccia, S Maria di Galeria, Italy
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