Multicusp Ion Source for Induction Linac Applications

At LBNL we are investigating the use of gaseous ion sources for induction linac applications such as heavy ion inertial fusion. Typical requirements for the ion source is to produce 20 /spl mu/s pulses with a rise-time of 2 /spl mu/s. The current density should be greater than 100 mA/cm/sup 2/ at a duty cycle of 10 Hz. Noble gases such as krypton, neon and xenon will be used. The source used for the measurements described in this paper was a standard 10 cm in diameter multicusp source with RF-discharge.