Title :
The Next Linear Collider damping ring lattices
Author :
Wolski, A. ; Corlett, J.N.
Author_Institution :
Lawrence Berkeley Lab., Berkeley, CA, USA
Abstract :
We report on the lattice design of the Next Linear Collider (NLC) damping rings. The damping rings are required to provide low emittance electron and positron bunch trains to the NLC linacs, at a rate of 120 Hz. We present an optical design, based on a theoretical minimum emittance (TME) lattice, to produce the required normalized extracted beam emittances γεx=3 mm-mrad and γε y=0.02 mm mrad. An assessment of dynamic aperture and non-linear effects is given. The positron pre-damping ring, required to reduce the emittance of the positron beam such that it may be accepted by a main damping ring, is also described
Keywords :
accelerator magnets; booster injectors; electromagnets; electron accelerators; storage rings; 120 Hz; NLQ; Next Linear Collider damping ring lattices; dynamic aperture; lattice design; low emittance electron bunch trains; low emittance positron bunch trains; nonlinear effects; normalized extracted beam emittances; positron beam; Apertures; Colliding beam devices; Damping; Electron beams; Lattices; Particle beam injection; Particle beams; Positrons; Radio frequency; Undulators;
Conference_Titel :
Particle Accelerator Conference, 2001. PAC 2001. Proceedings of the 2001
Conference_Location :
Chicago, IL
Print_ISBN :
0-7803-7191-7
DOI :
10.1109/PAC.2001.988256
