Comments on momentum aperture of 100 GeV/n Au runs in RHIC

[摘要] In RHIC 2010 100 GeV/n Au run, the momentum aperture has been an issue in the re-bucketing and the beam intensity lifetime in store. Both Blue and Yellow beams with comparable storage RF voltage and peak current have suffered more beam loss than in Run 2007. In this note, some comments are made for the momentum aperture of the lattices used from the Au runs in 2007, 2008 and 2010. From the wigglings and the beam decays of each lattice, information regarding the machine momentum aperture is presented. Several directions in further improvement are discussed.

[发布日期] 2011-11-01

[学科分类] 核物理和高能物理

[关键词] APERTURES;BEAMS;LOSSES;GEV RANGE 10-100;GOLD;LIFETIME;RF SYSTEMS;STORAGE relativistic heavy ion collider