Discrete cavity model of a standing-wave free-electron laser

Conference · Thu Aug 01 04:00:00 EDT 1991

OSTI ID:5232242

Rangarajan, G; Sessler, A ^[1]; Sharp, W M ^[2]

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1. Lawrence Berkeley Lab., CA (United States)
2. Lawrence Livermore National Lab., CA (United States)

A standing-wave free-electron laser (SWFEL) has been proposed for use in a two-beam accelerator (TBA). Unlike a conventional microwave free-electron laser, the SWFEL has a wiggler that is divided by irises into a series of standing-wave cavities, and the beam is reaccelerated by induction cells between cavities. We introduce a one-dimensional discrete-cavity model of the SWFEL. In contrast to the continuum model that has been extensively used to study the device, the new model takes into account time-of-flight effects within the cavity and applies the reacceleration field only between cavities, where the pondermotive force is absent. As in previous SWFEL models, only a single frequency is considered. Using this model, effects of finite cavity length are investigated. For moderately long cavities, it is shown that there are no adverse effects on the phase stability of the device. 4 refs., 3 figs., 1 tab.

• Research Organization: Lawrence Berkeley Lab., CA (United States)
• Sponsoring Organization: DOE; USDOE, Washington, DC (United States)
• DOE Contract Number: AC03-76SF00098; W-7405-ENG-48
• OSTI ID: 5232242
• Report Number(s): LBL-31197; CONF-9108118--10; ON: DE92000839
• 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
CAVITY RESONATORS
ELECTRICAL EQUIPMENT
ELECTROMAGNETS
ELECTRONIC EQUIPMENT
EQUIPMENT
FREE ELECTRON LASERS
LASERS
MAGNETS
MATHEMATICAL MODELS
RESONATORS
STANDING WAVES
WAVEGUIDES
WIGGLER MAGNETS