Abstract
We have explored the generation of high-charge-state ion beams by a vacuum arc ion source. A pulsed vacuum arc with current up to several kiloamperes and pulse duration about $1~\mu \text{s}$ was used. In a vacuum arc ion source with bismuth cathode and at a background pressure of about $40~\mu $ Pa, a bismuth ion beam was formed with a maximum charge state Bi19+. For an ion accelerating voltage of 60 kV, this corresponds to a maximum bismuth ion energy of over 1 MeV.
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