Experimental observation of wiggler superradiance under group synchronism condition

N S Ginzburg, N Y Peskov, I V Zotova, A S Sergeev, A D R Phelps, A W Cross, W He, K Ronald, V G Shpak, M I Yalandin, S A Shunailov, M R Ulmaskulov

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)


The first results of the observation of superradiance from a single, subnanosecond, high current, electron bunch passing through a wiggler immersed in a guide magnetic field are presented. The 300-500 ps microwave pulses were generated in the high gain regime for both the conventional and reverse directions of the guide magnetic field. The dependence of the radiation power on the interaction length as well as the absolute value of the power, 100-200 kW, were related with the development of self-bunching and consequently with coherent emission. 

Original languageEnglish
Pages (from-to)94-100
Number of pages7
JournalNuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Issue number1-3
Publication statusPublished - 11 Jun 1999


  • FEL superradiance
  • Wiggler superradiance
  • electron bunches
  • free electron laser
  • millimeter wave sources
  • FEL
  • electron beam
  • superradiant
  • millimetre-wave source
  • millimetre wave devices

Cite this