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Tallerico, T.

Paper Title Page
TPAP054 Helium Flow Induced Orbit Jitter at RHIC 3262
 
  • C. Montag, P. He, L. Jia, T. Nicoletti, T. Satogata, J. Schmalzle, T. Tallerico
    BNL, Upton, Long Island, New York
 
  Funding: Work performed under the auspices of the US Department of Energy.

Horizontal beam orbit jitter at frequencies around 10 Hz has been observed at RHIC for several years. The distinct frequencies of this jitter have been found at superconducting low-beta qudrupole triplets around the ring, where they coincide with mechanical modes of the cold masses. Recently, we have identified liquid helium flow as the driving force of these oscillations.