Radiation fields of THz free electron laser: 3D EM simulation and experimental study

Boris Kapilevich, Yuri Lurie, Boris Perutski, Boris Litvak, Ariel Etinger, Aharon Friedman, Yehiel Vashdi

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Scopus citations

Abstract

In this paper we present the results of 3D EM simulations and experimental verification of the configurations of EM field generated by radiating aperture of RF-LINAC THz FEL designed in Ariel University. The study is based on the FEL radiation pattern obtained in preliminary simulations by space-frequency WB3D numerical code. A wide-band radiation consisting mainly of a few lowest rectangular waveguide modes (TE01, TE21 and TE23 modes were found to be the dominant) is predicted at the FEL output. The optimal position of the focusing lens providing the minimum size of a beam without splitting was determined. The results of experiments are in a good agreement with numerical simulations.

Original languageEnglish
Title of host publication2014 IEEE 28th Convention of Electrical and Electronics Engineers in Israel, IEEEI 2014
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781479959877
DOIs
StatePublished - 2014
Event2014 28th IEEE Convention of Electrical and Electronics Engineers in Israel, IEEEI 2014 - Eilat, Israel
Duration: 3 Dec 20145 Dec 2014

Publication series

Name2014 IEEE 28th Convention of Electrical and Electronics Engineers in Israel, IEEEI 2014

Conference

Conference2014 28th IEEE Convention of Electrical and Electronics Engineers in Israel, IEEEI 2014
Country/TerritoryIsrael
CityEilat
Period3/12/145/12/14

Keywords

  • Beam profile
  • Focusing lens
  • Modes of radiating fields
  • THz FEL

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