title: Overview of the negative ion based neutral beam injectors for ITER.
abstract: The ITER baseline foresees 2 Heating Neutral Beams (HNB's) based on 1 MeV 40 A D(-) negative ion accelerators, each capable of delivering 16.7 MW of deuterium atoms to the DT plasma, with an optional 3rd HNB injector foreseen as a possible upgrade. In addition, a dedicated diagnostic neutral beam will be injecting ≈22 A of H(0) at 100 keV as the probe beam for charge exchange recombination spectroscopy. The integration of the injectors into the ITER plant is nearly finished necessitating only refinements. A large number of components have passed the final design stage, manufacturing has started, and the essential test beds-for the prototype route chosen-will soon be ready to start.
authors.affiliation: ITER Organization, Route de Vinon-sur-Verdon, 13115 St Paul lez Durance, France.
authors.forename: B
authors.initials: B
authors.lastname: Schunke
authors.affiliation: ITER Organization, Route de Vinon-sur-Verdon, 13115 St Paul lez Durance, France.
authors.forename: D
authors.initials: D
authors.lastname: Boilson
authors.affiliation: ITER Organization, Route de Vinon-sur-Verdon, 13115 St Paul lez Durance, France.
authors.forename: J
authors.initials: J
authors.lastname: Chareyre
authors.affiliation: ITER Organization, Route de Vinon-sur-Verdon, 13115 St Paul lez Durance, France.
authors.forename: C-H
authors.initials: CH
authors.lastname: Choi
authors.affiliation: ITER Organization, Route de Vinon-sur-Verdon, 13115 St Paul lez Durance, France.
authors.forename: H
authors.initials: H
authors.lastname: Decamps
authors.affiliation: ITER Organization, Route de Vinon-sur-Verdon, 13115 St Paul lez Durance, France.
authors.forename: A
authors.initials: A
authors.lastname: El-Ouazzani
authors.affiliation: ITER Organization, Route de Vinon-sur-Verdon, 13115 St Paul lez Durance, France.
authors.forename: F
authors.initials: F
authors.lastname: Geli
authors.affiliation: ITER Organization, Route de Vinon-sur-Verdon, 13115 St Paul lez Durance, France.
authors.forename: J
authors.initials: J
authors.lastname: Graceffa
authors.affiliation: ITER Organization, Route de Vinon-sur-Verdon, 13115 St Paul lez Durance, France.
authors.forename: R
authors.initials: R
authors.lastname: Hemsworth
authors.affiliation: ITER Organization, Route de Vinon-sur-Verdon, 13115 St Paul lez Durance, France.
authors.forename: M
authors.initials: M
authors.lastname: Kushwah
authors.affiliation: ITER Organization, Route de Vinon-sur-Verdon, 13115 St Paul lez Durance, France.
authors.forename: K
authors.initials: K
authors.lastname: Roux
authors.affiliation: ITER Organization, Route de Vinon-sur-Verdon, 13115 St Paul lez Durance, France.
authors.forename: D
authors.initials: D
authors.lastname: Shah
authors.affiliation: ITER Organization, Route de Vinon-sur-Verdon, 13115 St Paul lez Durance, France.
authors.forename: M
authors.initials: M
authors.lastname: Singh
authors.affiliation: ITER Organization, Route de Vinon-sur-Verdon, 13115 St Paul lez Durance, France.
authors.forename: L
authors.initials: L
authors.lastname: Svensson
authors.affiliation: ITER Organization, Route de Vinon-sur-Verdon, 13115 St Paul lez Durance, France.
authors.forename: M
authors.initials: M
authors.lastname: Urbani