Design of the ITER Neutral Beam injectors

Journal Article · Mon Jul 01 04:00:00 EDT 1996 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.51269· OSTI ID:451345

Hemsworth, R S ^[1]; Feist, J ^[2]; Hanada, M ^[3]; Heinemann, B ^[4]; Inoue, T ^[5]; Kuessel, E ^[6]; Kulygin, V; Krylov, A ^[7]; Lotte, P ^[8]; Miyamoto, K; Miyamoto, N ^[5]; Murdoch, D ^[9]; Nagase, A; Ohara, Y; Okumura, Y ^[5]; Pamela, J ^[8]; Panasenkov, A ^[7]; Shibata, K ^[10]; Tanii, M

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1. ITER Joint Central Team, ITER Naka Joint Work Site, 801-1 Mukouyama, Naka-machi, Naka-gun, Ibaraki-ken, 311-01 (Japan)
2. ITER European Home Team: IPP Garching, Max-Planck-Institut fuer Plasmaphysik, Boltzmannstrae 2, D-85748 Garching b. Muenchen (Germany)
3. ITER Joint Central Team, ITER Naka Joint Work Site 801-1 Mukouyama, Naka-machi, Naka-gun, Ibaraki-ken, 311-01 (Japan)
4. ITER European Home Team: IPP Garching, Max-Planck-Institut fuer Plasmaphysik, Boltzmannstrae 2, D-85748 garching b. Muenchen (Germany)
5. ITER Japanese Home Team: JAERI, Naka Fusion Research Establishment, 801-1 Mukouyama, Naka-machi, Naka-gun, 311-01 (Japan)
6. ITER European Home Team. KFA Juelich IPP, Postfach 1913, D-5170 Juelich (Germany)
7. ITER Russian Federation Home Team: RRC Kurchatov Institute, Institute of Nuclear Fusion, Ploshchad Akademika, Kurchatova 46, Moscow 123182 (Russia)
8. ITER European Home Team: DRFC, CE Cadarache, 13108 St Paul Lez Durance (France)
9. ITER European Home Team: The NET Team, Max-Planck-Institut fuer Plasmaphysik, Boltzmannstra 2, D-85748 Garching b. Muenchen (Germany)
10. ITER Japanese Home Team: Hitachi Works Co. Ltd., 1168 Moriyama-cho, Hitachi-shi, Ibaraki-ken, 316 (Japan)

This paper describes the Neutral Beam Injection system which is presently being designed in Europe, Japan and Russia, with co-ordination by the Joint Central Team of ITER at Naka, Japan. The proposed system consists of three negative ion based neutral injectors, delivering a total of 50 MW of 1 MeV D{sup 0} to the ITER plasma for pulse length of {ge}1000 s. The injectors each use a single caesiated volume arc discharge negative ion source, and a multi-grid, multi-aperture accelerator, to produce about 40 A of 1 MeV D{sup {minus}}. This will be neutralized in a sub-divided gas neutralizer, which has a conversion efficiency of about 60{percent}. The charged fraction of the beam emerging from the neutralizer is dumped in an electrostatic residual ion dump. A water cooled calorimeter can be moved into the beam path to intercept the neutral beam, allowing commissioning of the injector independent of ITER. {copyright} {ital 1996 American Institute of Physics.}

• OSTI ID: 451345
• Report Number(s): CONF-9510304--
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 380; ISSN APCPCS; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
AMP BEAM CURRENTS
BEAM INJECTION
BEAM OPTICS
DEUTERON BEAMS
ION SOURCES
ITER TOKAMAK
MEV RANGE 01-10