STUDY OF SOME DESIGN CONCEPTS AND COLLECTIVE EFFECTS IN THE MAX IV LINAC

The MAX IV linac will be used both for injection and top up into two storage rings, and as a high brightness injector for a Short Pulse Facility (SPF) and an FEL (phase 2) [1]. Compression is done in two double achromats with positive R56. The natural second order momentum compaction, T566, from the achromats is used together with weak sextupoles to linearise longitudinal phase space, leaving no need for a harmonic cavity for linearisation of longitudinal phase space. In this proceeding we present results from particle tracking through the MAX IV linac in high brightness mode. We also investigate emittance dilution due to CSR, in the achromat compressors, and transverse wakefields in a high beta function lattice. From the light-source point of view, we present preliminary simulation of the expected spontaneous emission in the x-ray range of the SPF electron beam.