http://www.cnr.it/ontology/cnr/individuo/prodotto/ID276769
Physics design of the Injector Source for ITER NBI (Abstract/Comunicazione in atti di convegno)
- Type
- Label
- Physics design of the Injector Source for ITER NBI (Abstract/Comunicazione in atti di convegno) (literal)
- Anno
- 2013-01-01T00:00:00+01:00 (literal)
- Alternative label
V. Antoni; G. Serianni; the NBI Team (2013)
Physics design of the Injector Source for ITER NBI
in The 15th International Conference on Ion Sources (ICIS '13), Chiba, Japan, September 9-13, 2013
(literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- V. Antoni; G. Serianni; the NBI Team (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#altreInformazioni
- TueA01 (Invited); Conference site: http://www.nirs.go.jp/conf/icis13/ (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url
- http://www.nirs.go.jp/conf/icis13/ICIS_13Abstracts.pdf (literal)
- Note
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
- Consorzio RFX, Padova, Italy (literal)
- Titolo
- Physics design of the Injector Source for ITER NBI (literal)
- Abstract
- Two Neutral Beam Injectors (NBI) are foreseen in ITER to provide a substantial fraction of the heating power
necessary to ignite Thermonuclear Fusion reactions inthe magnetically confined plasma. The development of
the NBI system at unprecedented parameters (40 A of negative ion current accelerated upto 1MV) is one of the
most challenging tasks of the whole project so that before the installation of the NBI in ITER a full scale
prototype will be realized, tested and optimized at the Test Facility in construction in Padova (Italy). The beam
source is the key component of the system and the design of the multi-grid accelerator is the goal of a
multi-national R&D effort. In particular the beam steering is a challenging aspect being a tradeoff between
request of the optics and real grids with finite thickness and thermo-mechanical constraints due to the cooling
needs and the presence of permanent magnets.
At the Test Facility in Padova an intensive R&D activity, well coordinated with ITER and the other partners,
has been carried out in order to provide ITER with the elements to come to a final decision about the design.
A novel approach based on innovative scheme for magnetic deflection has been developed. This scheme
added to the electrostatic deflection commonly applied and successfully tested in several accelerators, offers
significant simplification in the grid design and in flexibility as it works in a wide range of acceleration voltages.
In the paper a review of the accelerator physics and an overview of the whole R&D physics program aimed to
the development of the injector source is presented. (literal)
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