Author: Fu, W.
Paper Title Page
TUPZ038 RHIC Performance for FY2011 Au+Au Heavy Ion Run 1894
 
  • G.J. Marr, L. A. Ahrens, M. Bai, J. Beebe-Wang, I. Blackler, M. Blaskiewicz, J.M. Brennan, K.A. Brown, D. Bruno, J.J. Butler, C. Carlson, R. Connolly, T. D'Ottavio, K.A. Drees, A.V. Fedotov, W. Fischer, W. Fu, C.J. Gardner, D.M. Gassner, J.W. Glenn, X. Gu, M. Harvey, T. Hayes, L.T. Hoff, H. Huang, P.F. Ingrassia, J.P. Jamilkowski, N.A. Kling, M. Lafky, J.S. Laster, C. Liu, Y. Luo, M. Mapes, A. Marusic, K. Mernick, R.J. Michnoff, M.G. Minty, C. Montag, J. Morris, C. Naylor, S. Nemesure, S. Polizzo, V. Ptitsyn, G. Robert-Demolaize, T. Roser, P. Sampson, J. Sandberg, V. Schoefer, C. Schultheiss, F. Severino, T.C. Shrey, K.S. Smith, D. Steski, S. Tepikian, P. Thieberger, D. Trbojevic, N. Tsoupas, J.E. Tuozzolo, B. Van Kuik, G. Wang, M. Wilinski, A. Zaltsman, K. Zeno, S.Y. Zhang
    BNL, Upton, Long Island, New York, USA
  
  Funding: Work supported by Brookhaven Science Associates, LLC under Contract No. DE-AC02-98CH10886 with the U.S. Department of Energy.
Fol­low­ing the Fis­cal Year (FY) 2010 (Run-10) Rel­a­tivis­tic Heavy Ion Col­lid­er (RHIC) Au+Au run [1], RHIC ex­per­i­ment up­grades sought to im­prove de­tec­tor ca­pa­bil­i­ties. In turn, ac­cel­er­a­tor im­prove­ments were made to im­prove the lu­mi­nos­i­ty avail­able to the ex­per­i­ments for this run (Run-11). These im­prove­ments in­clud­ed: a re­design of the stochas­tic cool­ing sys­tems for im­proved re­li­a­bil­i­ty; a re­lo­ca­tion of “com­mon” RF cav­i­ties to al­le­vi­ate in­ten­si­ty lim­its due to beam load­ing; and an im­proved usage of feed­back sys­tems to con­trol orbit, tune and cou­pling dur­ing en­er­gy ramps as well as while col­lid­ing at top en­er­gy. We pre­sent an overview of changes to the Col­lid­er and re­view the per­for­mance of the col­lid­er with re­spect to in­stan­ta­neous and in­te­grat­ed lu­mi­nos­i­ty goals.