Prebunched-beam free electron maser (FEM)

M. Arbel, D. Ben-Chaim, M. Cohen, M. Draznin, A. Eichenbaura, A. Gover, H. Kleinman, A. Kugel, Y. Pinhasi, S. Witman, Y. Yakover

Research output: Contribution to journalConference articlepeer-review


The development status of a prebunched FEM is described. He are developing a 70KeV FEM to allow high gain wideband operation and to enable variation of the degree of prebunching. We intend to investigate its operation as an amplifier and as an oscillator. Effects of prebunching, frequency variation, linear and nonlinear effects, will be investigated. The prebuncher consists of a Pierce e-gun followed by a beam modulating section. The prebunched beam is accelerated to 70KeV and injected into a planar wiggler containing a waveguide. The results obtained to date will be presented. These include: characterization of the e-gun, e-beam transport to and through the wiggler, use of field modifying permanent magnets near the entrance and along the wiggler to obtain good e-beam transport through the wiggler, waveguide selection and characterization.

Original languageEnglish
Pages (from-to)518-521
Number of pages4
JournalProceedings of SPIE - The International Society for Optical Engineering
StatePublished - 1 May 1994
Event16th International Symposium on Discharges and Electrical Insulation in Vacuum 1994 - Moscow-St. Petersburg, Russian Federation
Duration: 23 May 199430 May 1994


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