Mandrillon, P. Conjat, M. JACoW Geneva, Switzerland 978-3-95450-167-0 10.18429/JACoW-Cyclotrons2016-FRA01 English 387-393 FRA01 cyclotron extraction acceleration proton injection Contribution to a conference proceedings 2017 2017-01 http://dx.doi.org/10.18429/JACoW-Cyclotrons2016-FRA01 http://jacow.org/cyclotrons2016/papers/fra01.pdf In order to cope with the challenge of an industrial ADS driver demonstrator in the range of 3 to 4 MWatt nominal driving power, it is mandatory to propose an accelerator design able to address highly demanding criteria which are a challenge for high power accelerator designers: the number of beam trips per year and the mean down-time per beam interruption should be drastically reduced. Taking into account the outstanding performances of the PSI ring cyclotrons, it is clear that cyclotrons are competitive challengers to high power linacs. The preliminary design studies of the Single Stage Cyclotron Driver of the AIMA Company could be an attractive solution in terms of cost effectiveness, reliability and power efficiency. Some critical aspects of this design will be presented in this paper.