Emittance Dilution And Beam Break Up In The JLC/NLC
- SLAC
The passage of a multi-bunch beam through an X-band accelerator with cells and structures misaligned gives rise to wakefields which disrupt succeeding bunches. As a consequence, there is growth in the overall emittance of the final colliding bunches. Here we study this process in the context of a JLC-NLC which employs the recently developed RDDS (Rounded Damped Detuned Structures) accelerators with 120 s fill time and drives a 90 bunch, 250 ns bunch train. We investigate cumulative beam break-up (BBU) under various parameter regimes appropriate to the structure which is in the process of being fabricated by KEK and SLAC. We compute the resultant emittance growth by means of analytical expressions and find good agreement with the results we obtain from a particle tracking code. We set misalignment tolerances by specifying allowable emittance growth.
- Research Organization:
- Stanford Linear Accelerator Center, Menlo Park, CA (US)
- Sponsoring Organization:
- USDOE Office of Energy Research (ER) (US)
- DOE Contract Number:
- AC03-76SF00515
- OSTI ID:
- 10041
- Report Number(s):
- SLAC-PUB-8101
- Country of Publication:
- United States
- Language:
- English
Similar Records
Optimized Wakefield Suppression & Emittance Dilution-Imposed Alignment Tolerances in X-Band Accelerating Structures for the JLC/NLC
DESIGN OF THE JLC/NLC RDDS STRUCTURE USING PARALLEL EIGENSOLVER Omega3P
Overview of NLC/JLC Collaboration
Technical Report
·
Fri May 23 00:00:00 EDT 2003
·
OSTI ID:813184
DESIGN OF THE JLC/NLC RDDS STRUCTURE USING PARALLEL EIGENSOLVER Omega3P
Technical Report
·
Wed Oct 04 00:00:00 EDT 2000
·
OSTI ID:784729
Overview of NLC/JLC Collaboration
Technical Report
·
Mon Aug 11 00:00:00 EDT 2003
·
OSTI ID:815261