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https://doi.org/10.18429/JACoW-NAPAC2016-TUPOB55
Title Optimize the Algorithm for the Global Orbit Feedback at Fixed Energies and During Acceleration in RHIC
Authors
  • C. Liu, R.L. Hulsart, K. Mernick, R.J. Michnoff, M.G. Minty
    BNL, Upton, Long Island, New York, USA
Abstract To combat triplets vibration, the global orbit feedback system with frequency about 10 Hz was developed and en- gaged in operation at injection and top energy in 2010, dur- ing beam acceleration in 2012 at RHIC. The system has performed well with keeping 6 out of 12 eigenvalues for the orbit response matrix. However, we observed correc- tor current transients with the lattice for polarized proton program in 2015 which resulted in corrector power supply trips. In this report, we will present the observation, an- alyze the cause and also optimize the feedback algorithm to overcome the newly emerged problem with the feedback system.
Funding Work supported by Brookhaven Science Associates, LLC under Contract No. DE-SC0012704 with the U.S. Department of Energy.
Paper download TUPOB55.PDF [0.433 MB / 4 pages]
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Conference NAPAC2016, Chicago, IL, USA
Series North American Particle Accelerator Conference (3rd)
Proceedings Link to full NAPAC2016 Proccedings
Session Poster Session (MC1 & MC5)
Date 11-Oct-16   16:00–17:30
Main Classification 1: Circular and Linear Colliders
Sub Classification A01 - Hadron Colliders
Keywords ion, feedback, acceleration, proton, lattice
Publisher JACoW, Geneva, Switzerland
Editors Volker RW Schaa (GSI, Darmstadt, Germany); Maria Power (ANL, Argonne, IL, USA); Vladimir Shiltsev (FNAL, Batavia, IL, USA); Marion White (ANL, Argonne, IL, USA)
ISBN 978-3-95450-180-9
Published January 2017
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