Speaker
Description
Multiturn Injection is an essential tool for achieving high beam intensities in synchrotrons. At SIS-18, a significant increase in the intensity of the uranium beam is foreseen, by several orders of magnitude up to 1.5x10e15 ions per injection cycle, prior to acceleration and extraction to SIS-100. Under these conditions, any beam losses during injection become critical, both in terms of beam lifetime and the risk of damaging injection system components, in particular the electrostatic septum.
Usually, the optimization of the multiturn injection is carried out by considering only the process of injecting one transverse slice of macroparticles from UNILAC per turn. We present here a three-dimensional modeling of the injection process, which takes into account the longitudinal structure of the injected beam, namely the train of microbunches, and evaluates differences from previous approaches.
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