Large-area multiarc ion beam source “MAIS”

Author

Engelko, Vladimir ; Giese, Harald ; Schalk, Sven

Author_Institution

Inst. fur Neutronenphys. und Reaktortech., Forschungszentrum Karlsruhe, Germany

Volume

25

Issue

4

fYear

1997

fDate

8/1/1997 12:00:00 AM

Firstpage

722

Lastpage

728

Abstract

A pulsed large-area intense ion beam source is described in which the ion-emitting plasma is built up by an array of individual discharge units homogeneously distributed over the surface of a common discharge electrode. A particularly advantageous feature of the source is that for plasma generation and subsequent acceleration of the ions, only one common energy supply is necessary. This allows us to simplify the source design and provides inherent synchronization of plasma production and ion extraction. Results of investigations of the source performance for the production of a proton beam are presented. The maximum beam current achieved to date is on the order of 100 A, with a particle kinetic energy of 15-30 keV and a pulse length in the range of 10 μs. Originally conceived for the production of proton beams, the source has recently been modified to allow the production of a metal ion beam. First tests using tungsten ions delivered encouraging results. Future activities will concentrate on the use of alternative-metal ions, carbon ions, and beams composed of mixed ion species

Keywords

arcs (electric); beam handling equipment; beam handling techniques; flashover; ion beams; ion sources; particle beam diagnostics; plasma production; surface discharges; tungsten; 10 mus; 100 A; 15 to 30 keV; C; C ions; H; MAIS; Ti ions; W; common discharge electrode; discharge units; energy supply; inherent synchronization; ion extraction; ion-emitting plasma; large-area multiarc ion beam source; maximum beam current; metal ion beam; mixed ion species; particle kinetic energy; plasma generation; plasma production; pulse length; pulsed large-area intense ion beam source; source design; source performance; Acceleration; Electrodes; Fault location; Ion beams; Kinetic energy; Particle beams; Plasma accelerators; Plasma sources; Production; Surface discharges;

fLanguage

English

Journal_Title

Plasma Science, IEEE Transactions on

Publisher

ieee

ISSN

0093-3813

Type

jour

DOI

10.1109/27.640694

Filename

640694