Multi-bunch energy compensation in the NLC bunch compressor

Conference · Sat Jun 01 04:00:00 EDT 1996

OSTI ID:539873

Zimmermann, F; Raubenheimer, T O; Thomson, K A

The task of the NLC bunch compressor is to reduce the length of each bunch in a train of 90 bunches from 4 mm, at extraction from the damping ring, to about 100 {mu}m, suitable for injection into the X-band main linac. This task is complicated by longitudinal long-range wake fields and the multi-bunch beam loading in the various accelerating sections of the compressor. One possible approach to compensate the multi-bunch beam loading is to add two RF systems with slightly different frequencies ({prime} {Delta}f{prime} scheme) to each accelerating section, as first proposed by Kikuchi. This paper summarizes the choice of parameters for three such compensating sections, and presents simulation results of combined single- and multi-bunch dynamics for four different NLC versions. The multi-bunch energy compensation is shown to be straightforward and its performance to be satisfactory.

• Research Organization: Stanford Linear Accelerator Center, Menlo Park, CA (United States)
• Sponsoring Organization: USDOE Office of Energy Research, Washington, DC (United States)
• DOE Contract Number: AC03-76SF00515
• OSTI ID: 539873
• Report Number(s): SLAC-PUB--7141; CONF-960621--; ON: DE97009071
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
BEAM BUNCHERS
BEAM BUNCHING
BEAM INJECTION
DESIGN
LINEAR COLLIDERS