Operations and Performance of RHIC as a Cu-Cu Collider

F Pilat,L Ahrens,M Bai,D S Barton,J Beebewang, M Blaskiewicz,J M Brennan,Damien L Bruno, P Cameron,Rod M Connolly,John P Delong, Ted Dottavio,A Drees,Wolfgang B Fischer, G Ganetis,C Gardner,Jason Glenn, Paul M Harvey,Tamara L Hayes,H C Hseuh,Haiyan Huang, P Ingrassia,U Iriso,Renguey Lee,V N Litvinenko,Youxin Luo,W W Mackay,G V Marr,A Marusic,R Michnoff,C Montag,J A G Morris,A Nicoletti, B Oerter, V Ptitsyn,T Roser,Thomas A Russo,J Sandberg,T Satogata,C Schultheiss, S Tepikian,Rogelio Tomas,D Trbojevic,N Tsoupas, J Tuozzolo,K Vetter, A Zaltsman, K Zeno,S Y Zhang, Wenran Zhang

Proceedings of the 2005 Particle Accelerator Conference（2005）

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摘要

The 5thyear of RHIC operations, started in November 2004 and expected to last till June 2005, consists of a physics run with Cu-Cu collisions at 100 GeV/u followed by one with polarized protons (pp) at 100 GeV [1]. We will address here the overall performance of the RHIC complex used for the first time as a Cu-Cu collider, and compare it with previous operational experience with Au, PP and asymmetric d-Au collisions. We will also discuss operational improvements, such as a squeeze to 85cm in the high luminosity interaction regions from the design value of 1m, system improvements, machine performance and limitations, and address reliability and uptime issues.

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关键词

apertures,gold,protons,physics,predictive models,helium,polarization

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