At RIKEN,three ECR ion sources(10GHz ECRIS,18GHz ECRIS and liquid He-free SC-ECRIS)are operated 3.8 external ion sources of heavy ion aecelerators.In the last year,multi-charged uranium ion beam was produced from 18GHz ECRIS by using UF6 and the 238U ion was successfully accelerated by the accelerator complex which consists of the RFQ linear accelerator,RIKEN heavy ion linear accelerator(RILAC)and RIKEN ring cyclotron accelerator(RRC).The typical beam intensity of 238U14+ was about 2puA on faraday cup after analysing magnet.70Zn beam was still supplied for the new super-heavy element search experiment with insertion method.Intense beam of 70Zn16+ was produced for long term (～43 days)without vacuum break and remarkably low material consumption rate(～100μgr/h).We already supplied Zn beam longer than 200 days for this experiment.48Ca ion was also produced by insertion method using 48CaO rod for the anclear physics experiment.In this contribution,we will present ion source parameter and techniques for production of each of the metal ions.
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