Speaker
Dr
Claude Krantz
(Marburger Ionenstrahl-Therapiezentrum)
Description
At the p/12C6+ synchrotron of the Marburg Ion-Beam Therapy Centre we use slow extraction by transverse noise (KO-) excitation. The system is equipped with a Dynamic Intensity Control (DIC) loop allowing fast modulation of the spill rate during extraction. By careful adjustment of the exciter noise spectrum relative to the small-amplitude particle tune and the extraction tune, it is possible to optimise the response of the system to the DIC set-point. Presently, an experiment involving a fast air-core-quadrupole (ACQ) magnet is being developed in order to measure the effects of fast coherent tune shifts on the spill structure. The experiments will allow to study the interplay of the ACQ with the KO exciter and DIC.