Author: Ainsworth, R.
Paper Title Page
MOPOST050 Third-Order Resonance Compensation at the FNAL Recycler Ring 195
SUSPMF064   use link to see paper's listing under its alternate paper code  
 
  • C.E. Gonzalez-Ortiz
    MSU, East Lansing, Michigan, USA
  • R. Ainsworth
    Fermilab, Batavia, Illinois, USA
  • P.N. Ostroumov
    FRIB, East Lansing, Michigan, USA
 
  The Recycler Ring (RR) at the Fermilab Accelerator Complex performs slip-stacking on 8 GeV protons, doubling the beam intensity delivered to the Main Injector (MI). At MI, the beam is accelerated to 120 GeV and delivered to the high energy neutrino experiments. Femilab’s Proton Improvement Plan II (PIP-II) will require the Recycler to store 50% more beam. Simulations have shown that the space charge tune shift at this new intensity will lead to the excitation of multiple resonance lines. Specifically, this study looks at normal sextupole lines 3 Qx=76 and Qx+2Qy=74, plus skew sextupole lines 3 Qy=73 and 2 Qx+Qy=75. Dedicated normal and skew sextupoles have been installed in order to compensate for these resonance lines. By measuring and calculating the Resonance Driving Terms (RDT), this study shows how each of the resonance lines can be compensated independently. Furthermore, this study shows and discusses initial investigations into compensating multiple lines simultaneously.  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2022-MOPOST050  
About • Received ※ 09 June 2022 — Accepted ※ 16 June 2022 — Issue date ※ 21 June 2022  
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