Beam-Ion Instability in PEP-II

[摘要] The instability in the PEP-II electron ring has been observed while reducing the clearing gap in the bunch train. We study the ion effects in the ring summarizing existing theories of the beam-ion interaction, comparing them with observations, and estimating effect on luminosity in the saturation regime. Considering the gap instability we suggest that the instability is triggered by the beam-ion instability, and discuss other mechanisms pertinent to the instability.

[发布日期] 2007-11-07

[学科分类] 核物理和高能物理

[关键词] PEP STORAGE RINGS;ELECTRON RINGS;BEAM BUNCHING;INSTABILITY;BEAM LUMINOSITY;IONS;INTERACTIONS Accelerators;ACCPHY