A Low-Emittance Lattice for the ESRF

In the framework of its upgrade, the ESRF is designing a new lattice to replace the present double-bend achromat structure. This new lattice fulfills the following constraints and requirements: It fits in the present tunnel and keeps the insertion device source points at the same location; Its target horizontal emittance is around 150 pm; It keeps the electron energy at 6 GeV in order to preserve the spectral properties of the present beamlines; It minimizes the radiation losses and the magnet electrical consumption in order to decrease operating costs; The present injector complex is re-used with minor changes.