The Gesellschaft für Schwerionenforschung (GSI) plans a major new international research facility at Darmstadt, Germany. The principal goal of the new facility is to provide the European science community with a worldwide unique and technically innovative accelerator system to perform future forefront research in the sciences concerned with the basic structure of matter. The facility will provide an extensive range of particle beams from protons and their antimatter partners, antiprotons, to

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... beams of all chemical elements up to the heaviest one, uranium, with in many respects world record intensities. The proposed facility consists of a 100/300 Tm double-ring synchrotron SIS100/300 and a system of associated storage rings for beam collection, cooling, and experimentation. The heart of the new facility, the double-ring synchrotron, provides for fast acceleration utilizing novel, rapidly cycling super-conduction magnets. These and the usage of stochastic and electron cooling of the beams are the key features of the new facility.