Nonlinear Resonant Collimation for Future Linear Colliders
We present a scheme for collimating large amplitude particles in the main linacs of a linear collider, by adding octupoles to the FODO lattice of the linac. The requirements on downstream collimation can in this way be greatly reduced or perhaps even eliminated. An analytic estimate of the amplitude at which particles are lost is made by calculating the separatrix of the fourth order resonance, and is in good agreement with the results of simulations. Simulations of particle distributions in the beam core and halo are presented, as well as alignment tolerances for the octupoles.
- Research Organization:
- SLAC National Accelerator Lab., Menlo Park, CA (United States)
- Sponsoring Organization:
- USDOE Office of Energy Research (ER) (US)
- DOE Contract Number:
- AC03-76SF00515
- OSTI ID:
- 9927
- Report Number(s):
- SLAC-PUB-7958; TRN: US0401830
- Resource Relation:
- Other Information: PBD: 9 Nov 1998
- Country of Publication:
- United States
- Language:
- English
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