Dynamic aperture calculation for the RHIC 2010 100 GeV Au-Au run lattices

Luo, Y. ; Brown, K. ; Fischer, W. ; Ptitsyn, V. ; Roser, T. ; Schoefer, V. ; Tepikian, S. ; Trbojevic, D.

Brookhaven National Laboratory (BNL) Relativistic Heavy Ion Collider

关键词: Simulation Relativistic Heavy Ion Collider;    43 Particle Accelerators;    Relativistic Heavy Ion Collider;    Decay;    Apertures;   

DOI  :  10.2172/988802
RP-ID  :  BNL--93905-2010-IR
RP-ID  :  DE-AC02-98CH10886
RP-ID  :  988802

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来源: UNT Digital Library

【 摘 要 】

In this note we summarize the dynamic aperture calculation with the 2010 RHIC 100 GeV Au-Au run lattices. This study was initiated to understand the observed large beam decay in the Yellow ring after rf re-bucketing in the beginning of this run. The off-line linear lattice models and the interaction region non-linearity models are used. The large beam decay in the Yellow ring after re-bucketing was eventually eliminated by lowering the Yellow tunes to 0.21 from 0.235 with {beta}* = 0.7m lattice. In this note we only focus on the numeric simulation instead of the beam experiments.