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Quadrupole Beam-Based Alignment at RHIC

By: Satogata, T.; Montag, C.; Niedziela, J.;

2005 / IEEE / 0-7803-8859-3


This item was taken from the IEEE Conference ' Quadrupole Beam-Based Alignment at RHIC ' Successful implementation of a beam-based alignment algorithm, tailored to different types of quadrupoles at RHIC, provides significant benefits to machine operations for heavy ions and polarized protons. This algorithm was used to calibrate beam position monitor centers relative to interaction region quadrupoles to maximize aperture. This approach was also used to determine the optimal or bit through transition jump quadrupoles to minimize orbit changes during the transition jump for heavy ion acceleration. This paper provides background discussion and results from first measurements during the RHIC 2005 run.