FLUKA-SIXTRACK Coupling for the SPS Scrapers

Recently, the FLUKA–SIXTRACK coupling has been set up to simulate with great detail the performance of cleaning systems in circular, ultra-relativistic accelerators. In a coupled simulation, the two codes run simultaneously while exchanging particle information; SIXTRACK tracks the beam through the accelerator lattice, whereas FLUKA simulates the interaction of the tracked beam with intercepting devices. Hence, the coupling combines the best of the two codes involved, characterised by a long history of development and benchmarking. The present work summarises the main outcomes of the first extensive application of the coupling to a study case – the SPS scrapers and their upgrade as proposed in the framework of the LIU project.