Generation of high charge state metal ion beams by electron cyclotron resonance heating of vacuum arc plasma in cusp trap

Journal Article · Wed Feb 15 00:00:00 EST 2012 · Review of Scientific Instruments

DOI:https://doi.org/10.1063/1.3662011· OSTI ID:22063814

Nikolaev, A G; Savkin, K P; Oks, E M; Vizir, A V; Yushkov, G Yu ^[1]; Vodopyanov, A V; Izotov, I V; Mansfeld, D A ^[2]

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1. High Current Electronics Institute, Siberian Division of Russian Academy Science, Tomsk 634055 (Russian Federation)
2. Institute of Applied Physics, Russian Academy of Science, Nizhniy Novgorod 603950 (Russian Federation)

A method for generating high charge state heavy metal ion beams based on high power microwave heating of vacuum arc plasma confined in a magnetic trap under electron cyclotron resonance conditions has been developed. A feature of the work described here is the use of a cusp magnetic field with inherent ''minimum-B'' structure as the confinement geometry, as opposed to a simple mirror device as we have reported on previously. The cusp configuration has been successfully used for microwave heating of gas discharge plasma and extraction from the plasma of highly charged, high current, gaseous ion beams. Now we use the trap for heavy metal ion beam generation. Two different approaches were used for injecting the vacuum arc metal plasma into the trap - axial injection from a miniature arc source located on-axis near the microwave window, and radial injection from sources mounted radially at the midplane of the trap. Here, we describe preliminary results of heating vacuum arc plasma in a cusp magnetic trap by pulsed (400 {mu}s) high power (up to 100 kW) microwave radiation at 37.5 GHz for the generation of highly charged heavy metal ion beams.

• OSTI ID: 22063814
• Journal Information: Review of Scientific Instruments, Vol. 83, Issue 2; Conference: ICIS 2011: 14. international conference on ion sources, Giardini-Naxos, Sicily (Italy), 12-16 Sep 2011; Other Information: (c) 2012 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0034-6748
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
CHARGE STATES
CONFINEMENT
CUSPED GEOMETRIES
ECR HEATING
ELECTRIC DISCHARGES
ELECTRON CYCLOTRON-RESONANCE
GHZ RANGE
HEAVY METALS
ION BEAMS
MAGNETIC FIELDS
MICROWAVE HEATING
MICROWAVE RADIATION
MIRRORS
PLASMA