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Sprau, G.S.

Paper Title Page
WEPLS136 Pulsed Magnet Power Supplies for Improved Beam Trajectory Stability at the APS 2697
 
  • B. Deriy, L. Emery, A.L. Hillman, G.S. Sprau, J. Wang
    ANL, Argonne, Illinois
 
  New power circuit and control electronics have been implemented in the septum power supplies at the Advanced Photon Source (APS). The goal was to meet a low pulse-to-pulse relative amplitude jitter of about ± 5·10-4 for trajectory stability in the booster-to-storage ring transport line. The original power supply design produced a jitter of ± 15e-4, which made injection tuning difficult. The jitter for the two new booster pulsed magnet supplies is now 1.1e-4, as inferred by a beam-based statistical analysis. A common design was made for all of the septum magnet power supplies at the APS. The system, regulation algorithms, the results achieved, and the current regulation stability issues will be discussed.