Neutral Beam Injection System for the SHIP Experiment

The injector ion source is based on an arcdischarge plasma box. The plasma emitter is produced by a 1 kA arc discharge in deuterium. A multipole magnetic field produced with permanent magnets at the periphery of the plasma box is used to increase its efficiency and improve homogeneity of the plasma...

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Published inFusion science and technology Vol. 47; no. 1T; pp. 231 - 234
Main Authors Abdrashitov, G.F., Abdrashitov, A.G., Anikeev, A.V., Bagryansky, P.A., Deichuli, P.P., Ivanov, A.A., Kapitonov, V.A., Kireenko, A.V., Khrestolubov, V.S., Khilchenko, D.A., Korepanov, S.A., Mishagin, V.V., Murakhtin, S.V., Shukaev, A.N., Sorokin, A.V., Stepanov, D.N., Stupishin, N.V., Zubarev, P.V.
Format Journal Article
LanguageEnglish
Published United States Taylor & Francis 01.01.2005
Subjects
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
BEAM PROFILES
COMPUTERIZED SIMULATION
DEUTERIUM
EFFICIENCY
GEOMETRY
ION BEAMS
ION SOURCES
IONS
MAGNETIC FIELDS
NEUTRAL ATOM BEAM INJECTION
OPTICAL SYSTEMS
PERMANENT MAGNETS
PLASMA
PLASMA SIMULATION
SPHERICAL CONFIGURATION
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Summary:The injector ion source is based on an arcdischarge plasma box. The plasma emitter is produced by a 1 kA arc discharge in deuterium. A multipole magnetic field produced with permanent magnets at the periphery of the plasma box is used to increase its efficiency and improve homogeneity of the plasma emitter. The ion beam is extracted by a 4-electrodes ion optical system (IOS). Initial beam diameter is 200 mm. The grids of the IOS have a spherical curvature for geometrical focusing of the beam. The optimal IOS geometry and grid potentials were found by means of numerical simulation to provide precise beam formation. The measured angular divergence of the beam is 0.025 rad, which corresponds to a 4.7 cm Gaussian radius of the beam profile measured at focal point.
ISSN:1536-1055
1943-7641
DOI:10.13182/FST05-A647