Energy stability in a high average power FEL

Conference · Sun Dec 31 00:00:00 EST 1995

OSTI ID:377527

Merminga, L; Bisognano, J J

Recirculating, energy-recovering linacs can be used as driver accelerators for high power FELs. Instabilities which arise from fluctuations of the cavity fields are investigated. Energy changes can cause beam loss on apertures, or, when coupled to M{sub 56}, phase oscillations. Both effects change the beam induced voltage in the cavities and can lead to unstable variations of the accelerating field. Stability analysis for small perturbations from equilibrium is performed and threshold currents determined. Design strategies to increase the instability threshold are discussed and the high average power FEL proposed for construction at CEBAF is used as an example.

• Research Organization: Continuous Electron Beam Accelerator Facility, Newport News, VA (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: AC05-84ER40150
• OSTI ID: 377527
• Report Number(s): DOE/ER/40150-341; CEBAF-PR-95-030; CONF-950512-386; ON: DE96013329; TRN: 96:025564
• Resource Relation: Conference: 16. Institute of Electrical and Electronic Engineers (IEEE) particle accelerator conference, Dallas, TX (United States), 1-5 May 1995; Other Information: PBD: [1995]
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
42 ENGINEERING NOT INCLUDED IN OTHER CATEGORIES
FREE ELECTRON LASERS
STABILITY
CEBAF ACCELERATOR
INSTABILITY