Speaker
Description
In the previous cyclotron conference, an analytical prediction for the energy limit of isochronous cyclotrons was presented. The current paper shows numerical results to validate this model. For this purpose, extensive use is made of a tool that creates artificial isochronous magnetic field maps; a tool that is the subject of another contribution to this conference. A wide range of field maps with varying rotational symmetry numbers, varying flutter profiles and varying sector spiral angles is studied. Besides the energy limits, other optical properties such as the radial and vertical tunes and the stop-band of the 2Nur=N resonance are compared with the analytical predictions. The quality of agreement between theory and simulations is good but, as will be shown in the paper, depends on the amount of flutter in the map.
