Beam dynamics in wigglers: tracking in PEP with damping wigglers and measurements at SPEAR

摘要

Results of tracking with PATRICIA for PEP (Positron-Electron Project) with damping wigglers are presented. Experimental measurements of tune shift with amplitude in a SPEAR wiggler are also included. Tracking with PATRICIA for SPEAR with the rotated sextupole and octupole components included in the 15-period wiggler indicates that the dynamic aperture may be inside the physical aperture.