Simulation of a standing-wave free-electron laser

Conference · Sat Sep 01 00:00:00 EDT 1990

OSTI ID:6282787

Sharp, W M ^[1]; Sessler, A M; Whittum, D H; Wurtele, J S ^[2]; McDermott, D; Luhmann, N ^[3]

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1. Lawrence Livermore National Lab., CA (USA)
2. Lawrence Berkeley Lab., CA (USA)
3. California Univ., Los Angeles, CA (USA)

The standing-wave free-electron laser (FEL) differs from a conventional linear-wiggler microwave FEL in using irises along the wiggler to form a series of standing-wave cavities and in reaccelerating the beam between cavities to maintain the average energy. The device has been proposed for use in a two-beam accelerator (TBA) because microwave power can be extracted more effectively than from a traveling-wave FEL. The standing-wave FEL is modeled in the continuum limit by a set of equations describing the coupling of a one-dimensional beam to a TE{sub 01} rectangular-waveguide mode. Analytic calculations and numerical simulations are used to determine the time variation of the reacceleration field and the prebunching required so that the final microwave energy is the same in all cavities. The microwave energy and phase are found to be insensitive to modest spreads in the beam energy and phase and to errors in the reacceleration field and the beam current, but the output phase appears sensitive to beam-energy errors and to timing jitter.

• Research Organization: Lawrence Livermore National Lab., CA (USA)
• Sponsoring Organization: DOE/DP
• DOE Contract Number: W-7405-ENG-48; AC03-76SF00098
• OSTI ID: 6282787
• Report Number(s): UCRL-JC-103826; CONF-9009123--64; ON: DE91007330
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
426002 -- Engineering-- Lasers & Masers-- (1990-)
43 PARTICLE ACCELERATORS
430303* -- Particle Accelerators-- Experimental Facilities & Equipment
ACCELERATORS
AMPLIFIERS
ELECTRICAL EQUIPMENT
ELECTROMAGNETS
ELECTRONIC EQUIPMENT
EQUIPMENT
FREE ELECTRON LASERS
LASERS
LINEAR ACCELERATORS
LINEAR COLLIDERS
MAGNETS
MICROWAVE AMPLIFIERS
MICROWAVE EQUIPMENT
SIMULATION
STANDING WAVES
WAVEGUIDES
WIGGLER MAGNETS