High current multicharged metal ion source using high power gyrotron heating of vacuum arc plasma

Journal Article · Fri Feb 15 04:00:00 EST 2008 · Review of Scientific Instruments

DOI:https://doi.org/10.1063/1.2802285· OSTI ID:21103964

Vodopyanov, A V; Golubev, S V; Khizhnyak, V I; Mansfeld, D A; Nikolaev, A G; Oks, E M; Savkin, K P; Vizir, A V; Yushkov, G Yu ^[1]

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1. Institute of Applied Physics, Russian Academy of Science, Nizhniy Novgorod 603950 (Russian Federation)

A high current, multi charged, metal ion source using electron heating of vacuum arc plasma by high power gyrotron radiation has been developed. The plasma is confined in a simple mirror trap with peak magnetic field in the plug up to 2.5 T, mirror ratio of 3-5, and length variable from 15 to 20 cm. Plasma formed by a cathodic vacuum arc is injected into the trap either (i) axially using a compact vacuum arc plasma gun located on axis outside the mirror trap region or (ii) radially using four plasma guns surrounding the trap at midplane. Microwave heating of the mirror-confined, vacuum arc plasma is accomplished by gyrotron microwave radiation of frequency 75 GHz, power up to 200 kW, and pulse duration up to 150 {mu}s, leading to additional stripping of metal ions by electron impact. Pulsed beams of platinum ions with charge state up to 10+, a mean charge state over 6+, and total (all charge states) beam current of a few hundred milliamperes have been formed.

• OSTI ID: 21103964
• Journal Information: Review of Scientific Instruments, Journal Name: Review of Scientific Instruments Journal Issue: 2 Vol. 79; ISSN 0034-6748; ISSN RSINAK
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
BEAM CURRENTS
BEAMS
CHARGE STATES
ELECTRONS
ION SOURCES
MAGNETIC FIELDS
MAGNETIC MIRRORS
METALS
MICROWAVE HEATING
MICROWAVE RADIATION
MIRROR RATIO
MIRRORS
PLASMA
PLASMA GUNS
PLATINUM IONS
RF SYSTEMS
STRIPPING
TRAPS