Author :
Brunet, P. ; le Meur, G. ; Melard, L. ; Mouton, B. ; Renard, M. ; Sommer, M. ; Grobner, O. ; Hubner, K. ; Hutton, A. ; Hanlon, H.O. ; Schnuriger, J.-C. ; Vos, L. ; Wyss, C.
Abstract :
Two alternative 15 GeV injectors have been considered for the 15 to 100 GeV, four-bunch version of the e+e- storage ring LEP1: i) a synchrotron operating with four bunches and cycling at a rate of 0.4 Hz, and ii) a storage ring (SR) which is capable of holding the full charge of one LEP beam in 48 bunches. The e+ are slowly accumulated in the SR during running of LEP for high-energy physics experiments, i.e. prior to LEP´s refill. The synchrotron system is designed to provide a ~15 min filling time of LEP; the SR would reduce it to ~5 min for a scheduled fill. The design considerations are outlined and the merits of the two systems are discussed.
