Hybrid Accelerator Design for a Free Electron Laser

1 October 1985

journal article
Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Nuclear Science

Vol. 32 (5) , 3380-3382
https://doi.org/10.1109/TNS.1985.4334374

Abstract

An accelerator system for a free electron laser (FEL) is described that incorporates both an electrostatic accelerator and an RF linac. The purpose of the design is to minimize the emittance of the high current pulses injected into the RF linac. Emittance contributes to the effective energy spread of the beam in the FEL. A large effective energy spread will reduce gain and conversion efficiency. The pulses leaving the electrostatic accelerator are compressed in a dispersive magnetic buncher before injection into the linac. After the beam leaves the FEL, energy is recovered in an RF decelerator followed by a decelerating and collecting column in the electrostatic accelerator. A new electrostatic accelerator design is presented to both provide high charging current and collect an electron beam with a large fractional energy spread.

Keywords

This publication has 3 references indexed in Scilit:

The los Alamos Free-Electron Laser
IEEE Transactions on Nuclear Science, 1985
Status Report Of The UCSB FEL Experimental Program
Published by SPIE-Intl Soc Optical Eng ,1984
Intermediate Energy Electron Cooling for Antiproton Sources Using a Pelletron Accelerator
IEEE Transactions on Nuclear Science, 1983