D'Agostino, G. Calabretta, L. Calanna, A. Rifuggiato, D. JACoW Geneva, Switzerland 978-3-95450-167-0 10.18429/JACoW-Cyclotrons2016-TUC03 English 160-163 TUC03 extraction ion cyclotron simulation quadrupole Contribution to a conference proceedings 2017 2017-01 http://dx.doi.org/10.18429/JACoW-Cyclotrons2016-TUC03 http://jacow.org/cyclotrons2016/papers/tuc03.pdf The INFN-LNS Superconducting Cyclotron will be upgraded to allow for the extraction by stripping for ion beams with masses below 40 amu. By choosing properly the position of the stripper, it is possible to convoy the trajectories of the selected representative ion beams across a new extraction channel (E.C.). Here we report the design study for the new E.C. and the simulations of the beam envelopes for a set of ions to find out the parameters of the magnetic channels necessary to focus and to steer the beams through the new extraction line. Two new compensation bars have been designed to compensate the first harmonic contribution of the new magnetic channels. The results of these simulations will be also presented.