Proposal to Increase the Extracted Beam Power from the LNS-INFN Superconducting Cyclotron

The LNS Superconducting Cyclotron, CS, is an isochronous 3-sector compact machine with a wide massenergy range of heavy ions: beams from protons to lead from 10 to 80 AMeV have been delivered for the past 20 years. However, the extracted current density does not exceed the tenth of enA, corresponding to a beam power of 100 W. Recently, the demand to increase the beam intensity of light ion of a factor 10 to 100 was posed by nuclear physicists. A feasibility study proved a new mode of extraction by stripping would allow for an extraction efficiency of 99% and consequently a high intensity provided by the cyclotron. Here the design of the actual central region as well as the feasibility study of the new extraction for this range of ions is presented. It emerges that the present cryostat is not compatible with the new extraction geometry; therefore, a new cryostat has to replace the present one.