Production of highly charged. heavy ions by means of a hybrid source in Dc mode and in afterglow mode

The ECLISSE experiment has been carried out by coupling a Laser Ion Source (based on a Nd:YAG laser (0.9 J/9 ns, laser power densities < 10(11) W/cm(2)) to the SERSE superconducting ECR ion source. Cw beams of highly charged ions from metal samples without the use of ovens or sputtering technics were obtained in a variety of experimental conditions. The maximum charge states obtained from the ECRIS were 38(+) for Ta and 41(+) for Au. The peak current was obtained for 25(+) and 29(+) respectively and it was in the order of some tens of p A. In this work the analysis of some preliminary results obtained in afterglow mode will be also presented. We employed microwave pulse (length 4 msec) and laser pulse (length 9 nsec) with the same frequency (30 Hz) and variable relative phase. For appropriate phase values, a current enhancement of about one order of magnitude was observed.