The MAST neutral beam injection system

Two neutral beam injectors will provide both plasma heating and current drive on the MAST tokamak using beamlines on loan from Oak Ridge National Laboratory. Progress is reported regarding the following engineering challenges in achieving beam energies up to 70 keV and pulse lengths up to 5 s: desig...

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Bibliographic Details
Published in:Fusion engineering and design 2001-10, Vol.56, p.529-532
Main Authors: Nightingale, M.P.S, Crawford, G.W, Gee, S.J, Hurford, D.J, Martin, D, Simmonds, M.R, Smith, R.T.C, Tsai, C.C, Warder, S.E.V
Format: Article
Language:English
Subjects:
Applied sciences
Beam energies
Cathodes
Controled nuclear fusion plants
Energy
Energy. Thermal use of fuels
Exact sciences and technology
Injection system
Installations for energy generation and conversion: thermal and electrical energy
Ion beams
MAST tokamak
Neutron emission
Plasma
Plasma heating
Tokamak devices
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Summary:Two neutral beam injectors will provide both plasma heating and current drive on the MAST tokamak using beamlines on loan from Oak Ridge National Laboratory. Progress is reported regarding the following engineering challenges in achieving beam energies up to 70 keV and pulse lengths up to 5 s: design of carbon fibre composite, hypervapotron and inertial beamline components capable of withstanding high heat fluxes; re-design of the ORNL accelerators to improve voltage capability and reliability; and the design and commissioning of indirectly-heated cathodes capable of 5 s operation.
ISSN:0920-3796
1873-7196
DOI:10.1016/S0920-3796(01)00343-X