Microbunching Instability in Velocity Bunching

Conference · Tue May 26 00:00:00 EDT 2009

OSTI ID:953497

Xiang, D; Wu, J

Microbunching instability is one of the most challenging threats to FEL performances. The most effective ways to cure the microbunching instability include suppression of the density modulation sources and suppression of the amplification process. In this paper we study the microbunching instability in velocity bunching. Our simulations show that the initial current and energy modulations are suppressed in velocity bunching process, which may be attributed to the strong plasma oscillation and Landau damping from the relatively low beam energy and large relative slice energy spread. A heating effect that may be present in a long solenoid is also preliminarily analyzed.

• Research Organization: SLAC National Accelerator Lab., Menlo Park, CA (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC02-76SF00515
• OSTI ID: 953497
• Report Number(s): SLAC-PUB-13646; TRN: US1000837
• Resource Relation: Conference: Presented at Particle Accelerator Conference (PAC 09), Vancouver, BC, Canada, 4-8 May 2009
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
ACCELERATORS
AMPLIFICATION
BEAMS
BEAM BUNCHING
DENSITY
ENERGY
FREE ELECTRON LASERS
HEATING
INSTABILITY
LANDAU DAMPING
MODULATION
PARTICLES
PLASMA WAVES
SOLENOIDS
VELOCITY
Accelerators
Other
ACCPHY
XFEL