Enhancement of FEL efficiency by using short electron pulses

D. A. Jaroszynski, D. Oepts, J. M. Ortega, C. R. Pidgeon, P. W. van Amersfoort

Research output: Contribution to journalArticlepeer-review

15 Citations (Scopus)


In this paper we show that for an intermediate gain free electron laser oscillator, the efficiency is dramatically enhanced by operating with electron pulses shorter than the slippage distance. We discuss both the consequences of operating at longer wavelengths where lethargy effects are important and the implications of working with short electron pulses when inhomogeneous broadening is important. The discussion is supported by a one-dimensional multiparticle simulation that takes into account both saturation and short pulse effects. © 1992.

Original languageEnglish
Pages (from-to)582-587
Number of pages6
JournalNuclear Inst. and Methods in Physics Research, A
Issue number1-3
Publication statusPublished - 1 Jul 1992


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