Possibility of a high-power, high-gain amplifier FEL

Conference · Tue Jan 01 04:00:00 EST 2002

DOI:https://doi.org/10.1016/B978-0-444-51417-2.50034-1· OSTI ID:976351

Nguyen, D C ^[1]; Freund, H P ^[2]

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1. Dinh C.
2. Henry P.

High-gain amplifier FEL offer many unique advantages such as robust operation without a high-Q optical cavity and potentially high extraction eaciencies with the use of tapered wigglers. Although a high average power, cw amplifier FEL has not been demonstrated, many key physics issues such as electron beam brightness requirements, single-pass gains, saturation, etc. have been resolved. In this paper, we study the feasibility of a high-power FEL based on the high-gain amplifier concept. We show that with suitable electron beam parameters, i.e. high peak current, low emittance, low energy spread, and sufficient tapered wiggler length, peak output power of 1 QW and optical pulse energy of 8 mJ can be achieved. We also outline a possible configuration of a high-power, high-gain amplifier FEL with energy recovery.

• Research Organization: Los Alamos National Laboratory
• Sponsoring Organization: DOE
• OSTI ID: 976351
• Report Number(s): LA-UR-02-5949
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
AMPLIFIERS
BRIGHTNESS
CONFIGURATION
ELECTRON BEAMS
ENERGY RECOVERY
FREE ELECTRON LASERS
PHYSICS
SATURATION