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Casey, P. W.

Paper Title Page
WEPMN115 Results of the ALS Booster Ring RF System Upgrade for Top-Off Mode of Operation 2307
  • K. M. Baptiste, P. W. Casey, S. Kwiatkowski, CA. Timossi
    LBNL, Berkeley, California
  Funding: Supported by the U. S. Department of Energy under Contract No. DE-AC03-76SF00098.

ALS, one of the first third generation synchrotron light sources which has been operating since 1992 at Berkeley Lab has been upgraded from its present operation scenario of injecting the 1.5GeV electron beam from the Booster ring into the Storage ring every 8 hours where it is accelerated to the final energy of 1.9GeV to full energy (1.9GeV) injection from the Booster ring into the Storage ring every 3 seconds for filling and every 30-35 seconds for Top-Off mode. Additionally the beam current has been increased from the time averaged value of 250mA to 500mA to increase the brightness. In this paper we will present the results of the new ALS injector RF system set-up for Top-Off mode of operation, the final design and operational results of the Booster RF power source and control system upgrades.