Beam dynamics through the CONCERT-ESS linac

The CONCERT concept aims to deliver high power pulsed beams to a various number of applications: matter studies with spallation neutrons, waste transmutation, exotic beam production, irradiation tools. It is one of the extension of the European Spallation Source project (ESS) dedicated to spallation neutrons production for mater studies. Both protons and H^- have to be accelerated and guided to each target. Two 50 mA H^- branches are funnelled with one 100 mA H ⁺ branch at around 23.5 MeV. A low energy H^branch is constituted of one RFQ from around 50 keV to 2 MeV, a chopper line (for ring injection at high energy), an other RFQ to 5 MeV, and a DTL to the funnel line. The low energy H⁺ is constituted of one RFQ from around 95 keV to 5 MeV and a DTL to the funnel line. The beams are then accelerated through a SDTL, a CCL and a superconducting cavity linac (SCL). The goal of this paper is to present the results of beam dynamics calculations through the CONCERT linac