Zaremba, S. De Neuter, S. Kleeven, W.J.G.M. Nactergal, B. Nuttens, V. van de Walle, J. JACoW Geneva, Switzerland 978-3-95450-167-0 10.18429/JACoW-Cyclotrons2016-TUP04 English 170-172 TUP04 cyclotron extraction ion magnet-design proton Contribution to a conference proceedings 2017 2017-01 http://dx.doi.org/10.18429/JACoW-Cyclotrons2016-TUP04 http://jacow.org/cyclotrons2016/papers/tup04.pdf An innovative isochronous cyclotron for PET radioisotope production has been designed, constructed, tested and industrialized at Ion Beam Applications (IBA) [1]. This cyclotron (patent application pending) produces 18MeV proton beam and is called the Cyclone® KIUBE. The design has been optimized for cost-effectiveness, compactness, ease of maintenance and high performance, which are key elements considering its application in the dedicated market. Compared to the previous 18 MeV protons and 9 MeV deuteron machine from IBA, Cyclone® 18/9, the gap between the poles has been reduced from 30 to 24 mm and the method of shimming to obtain isochronous magnetic field has been reviewed thoroughly. In early 2016, the prototype Cyclone® KIUBE was successfully commissioned at the IBA factory and the observed proton beam intensity outperformed Cyclone® 18/9.