Degradation of multibunch luminosity in a linear collider due to cumulative beam breakup
Beam-excited transverse wakes in accelerating radiofrequency structures will influence the transverse offsets of each bunch in a multibunch train, causing the projected emittance of the bunch train to grow. An analytic theory of this phenomenon that includes the mitigating influence of a correlated energy spread across the bunch train was recently devised and applied to electron-positron linear colliders. We use the results of this theory to estimate analytically the associated degradation of multibunch luminosity in terms of top-level parameters for the two beams, the two accelerators, and the final-focus system. Then we compare the estimates with results from GUINEA-PIG, a code that includes the detailed physics of beam-beam interactions.
- Research Organization:
- Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
- Sponsoring Organization:
- USDOE Office of Energy Research (ER) (US)
- DOE Contract Number:
- AC02-76CH03000
- OSTI ID:
- 782001
- Report Number(s):
- FERMILAB-Conf-01/138-T; TRN: US0103081
- Resource Relation:
- Conference: Degradation of Multibunch Luminosity in a Particle Accelerator Conference 2001, Chicago, IL (US), 06/18/2001--06/22/2001; Other Information: PBD: 26 Jun 2001
- Country of Publication:
- United States
- Language:
- English
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