Study of Extraction and Transport of Intense Highly Charged Ions for 18ghz Sc-ecris at Rcnp*

An 18 GHz superconducting ECRIS is installed to increase beam currents and to extend the variety of ions, especially for highly charged heavy ions which can be accelerated by RCNP cyclotrons. The production development of several ions like B, O, N, Ne, Ar, Ni, Kr and Xe has been already done and the further studies for those beam extraction and transport have been done in order to increase the beam current more injected to cyclotron. The extraction electrode and einzel lens are modified to be applied minus voltage for the beam extraction and the extracted beam is increasing as the electrode voltage rising. Additional steering magnets have been installed to reject the effect of magnetic field leakage from AVF Cyclotron and the transmission of transport line has been improved with these steering magnets successfully.