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SIS18 Status Report

The heavy ion synchrotron SIS18 serves an extended experimental program at GSI and must in parallel be upgraded for the planned booster operation for FAIR [1]. To prepare the booster operation with highest intensities of intermediate charge state heavy ions, an extended upgrade program (*) [2] has been defined, including most of the major technical systems. The realisation of the upgrade program requires long shut downs and unavoidably causes extended interruption of the running experimental programs. Part of the defined upgrade measures could be completed in 2008. The further steps and the rearrangement of the existing and the positioning of the new technical systems have been carefully planned.