Title :
PEP-II at 1.2Ã\x971034/cm2/s luminosity
Author :
Wienands, U. ; Cai, Y. ; Ecklund, S.D. ; Seeman, J.T. ; Sullivan, M.K.
Author_Institution :
SLAC, Stanford
Abstract :
PEP-II is an asymmetric e+-e- collider operating at the Upsi(4S) energy and has recently set several performance records. The luminosity has reached a peak of 1.2 x 1034 cm-2 s-1. Operating in continuous injection mode for both beams PEP-II has delivered up to 0.91 fb-1 day-1. Peak currents have reached 3.0 A of positrons and 1.9 A of electrons in 1732 bunches. Total delivered luminosity since turn-on in 1999 has exceeded 450 fb-1. This paper reviews the present performance issues of PEP-II and also the planned increase of luminosity in the near future to 2 times 1034 cm-2 s-1.
Keywords :
electron accelerators; particle beam bunching; particle beam injection; storage rings; PEP-II; Upsilon(4S) energy; asymmetric positron+electron collider; beam currents; bunch spacing; continuous injection mode; Colliding beam devices; Contracts; Electrons; Fires; Nuclear magnetic resonance; Positrons; Statistics; Testing; US Department of Energy; Voltage;
Conference_Titel :
Particle Accelerator Conference, 2007. PAC. IEEE
Conference_Location :
Albuquerque, NM
Print_ISBN :
978-1-4244-0916-7
DOI :
10.1109/PAC.2007.4440330
