Effects of Linac Wakefield on CSR Microbunching in the Linac Coherent Light Source

Technical Report · Mon May 19 00:00:00 EDT 2003

DOI:https://doi.org/10.2172/813112· OSTI ID:813112

Huang, Zhirong ^[1]

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1. SLAC

The design of the Linac Coherent Light Source (LCLS) requires two-stage bunch compression for stability against timing and charge jitters. Coherent synchrotron radiation (CSR) induced in these bunch compressors can drive a microbunching instability that may degrade the beam brightness. In this paper, we study effects of the longitudinal wakefield in the accelerator on this instability. We show that significant energy modulation can be accumulated in the linac through the geometrical wakefield and can enhance the CSR microbunching in these compressors. Analytical calculations are compared with numerical simulations to evaluate the gain of microbunching for the entire LCLS accelerator system..

• Research Organization: Stanford Linear Accelerator Center, Menlo Park, CA (US)
• Sponsoring Organization: USDOE Office of Science (US)
• DOE Contract Number: AC03-76SF00515
• OSTI ID: 813112
• Report Number(s): SLAC-PUB-9818
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
ACCELERATORS
BRIGHTNESS
COMPRESSION
COMPRESSORS
DESIGN
INSTABILITY
LIGHT SOURCES
LINEAR ACCELERATORS
MODULATION
STABILITY
SYNCHROTRON RADIATION