Author: Tanaka, M.
Paper Title Page
THPZ022 Operation Scheme and Statistics of KEKB 3735
 
  • M. Tanaka
    MELCO SC, Tsukuba, Japan
  • Y. Funakoshi
    KEK, Ibaraki, Japan
 
  The KEKB B-Factory(KEKB) started a collision experiment in 1999 and finished in June, 2010. The total operation time of KEKB from fiscal year 2000 was 55657 hours. The breakdowns of operation are physics run 73.8%, machine study 6.8%, machine tuning 4.8%, beam tuning 5.9%, trouble 5.3%, maintenance 2.1% and other 1.3%. The total integrated luminosity was 1041 fb-1 and the maximum peak luminosity was 21.083 nb-1s−1. To increase the peak and integrated luminosity, the continuous injection scheme, the crab cavities and the skew sextupole magnets were effective. We finished over ten year operation of KEKB in June, 2010.