A new SPS with significantly higher extraction energy than the present 450 GeV is of interest for several CERN projects presently under study. Firstly, for the Future Circular Collider for hadrons (FCC-hh) the tunnels of SPS, LHC and the 100 km collider will be available to house a High Energy Booster (HEB). Replacing the SPS by a superconducting single aperture, low complexity accelerator (scSPS), accelerating the beams up to 1.3 TeV, would have several advantages compared to the other HEB designs. Secondly, for an eventual High-Energy-LHC (HE-LHC) in the LHC tunnel, a higher injection energy could be mandatory for field quality, aperture and impedance reasons. And finally, for future Fixed Target programmes, the possibility of slow extracted beams at energies above 1 TeV could open new physics and detector test beam possibilities. This talk presents the conceptual design considerations for a superconducting single aperture accelerator (designated scSPS) in the SPS tunnel which can be used to accelerate protons to an extraction energy of 1.3 TeV for FCC and for interleaved fixed target beam operation in CERN’s North Area. The
cell design, magnet parameters, overall layout, design of the different insertion and performance estimates for specific applications will be presented and discussed in detail.