RESUMEN
The League of European Accelerator-based Photon Sources (LEAPS), comprising 19 large-scale user facilities in 10 member and associated states, has put forward for the first time a European strategy for a transformative way of cooperation, thereby mobilizing the members' substantial expertise in photon science and technology, in infrastructure management and service to users and stakeholders. This European Strategy for Accelerator-based Photon Sources-ESAPS 2022-is a coherent pan-European plan addressing the future challenges and needs of the new era in research and innovation, designed to put Europe in a global leadership position in important future key technologies. In ESAPS2022, ambitious facility upgrades and technology development plans as well as a new strategic challenge-driven use of these facilities are discussed.
RESUMEN
The electron-positron collider DAPhiNE, the Italian Phi factory, has been recently upgraded in order to implement an innovative collision scheme based on large crossing angle, small beam sizes at the crossing point, and compensation of beam-beam interaction by means of sextupole pairs creating a "crab-waist" configuration in the interaction region. Experimental tests of the novel scheme exhibited an increase by a factor of 3 in the peak luminosity of the collider with respect to the performances reached before the upgrade. In this Letter we present the new collision scheme, discuss its advantages, describe the hardware modifications realized for the upgrade, and report the results of the experimental tests carried out during commissioning of the machine in the new configuration and standard operation for the users.