부산대학교 도서관

In the last decade luminosities of lepton colliders have greatly risen. There are several ingredients of the success: the progress in the handling of high currents and multibunch regimes, in the beam-beam interaction limits understanding, in particle dynamics simulation codes, in the diagnostic systems to control beam sizes and orbits, in the background shielding. Now is time to go further in the high luminosity frontiers: experiments are asking for more precision measurements, and the accelerator community is facing projects where the increase of luminosity by orders of magnitude is conceivable. New ideas, main upgrades and plans in the factories presently in operation around the world are the subject of this paper.