Plural three-wave resonances of space charge wave harmonics in transit section of klystron-type two-stream FEL with helical electron beam

Alexander Lysenko, Iurii Volk, Anastasia Serozhko, Oleksandr Rybalko

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

Abstract

We have carried out the research of plural three-wave resonances of space charge wave (SCW) harmonics in the transit section of the klystron type two-stream superheterodyne free-electron laser (TSFEL) with helical electron beam in cubic non-linear approximation. We have found out that two-stream instability critical frequency increases with increasing of two-stream electron beam input angle in the focusing longitudinal magnetic field. Due to this fact, the frequency domain in which plural three-wave parametric resonances of SCW harmonics take place increases. The two-stream instability growth rate also increases in helical electron beams with increasing of the beam input angle. Therefore, the saturation lengths in TSFELs with helical electron beams are shorter compared to TSFELs utilizing straight electron beams. We have shown that SCWs with broad frequency spectrum form in two-velocity helical relativistic electron beam due to plural three-wave parametric resonances. We have demonstrated that klystron-type TSFEL with helical electron beam can be used as a source of powerful multiharmonic electromagnetic waves in millimeter-infrared wavelength ranges.
Original languageEnglish
Title of host publicationProceedings of 2017 IEEE Microwaves, Radar and Remote Sensing Symposium
PublisherIEEE
Publication date2017
Pages163-167
ISBN (Print)978-1-5090-5391-9
DOIs
Publication statusPublished - 2017
Event2017 IEEE Microwaves, Radar and Remote Sensing Symposium - Campus of the National Aviation University, Kiev, Ukraine
Duration: 29 Aug 201731 Aug 2017

Conference

Conference2017 IEEE Microwaves, Radar and Remote Sensing Symposium
LocationCampus of the National Aviation University
Country/TerritoryUkraine
CityKiev
Period29/08/201731/08/2017
Series2017 Ieee Microwaves, Radar and Remote Sensing Symposium (mrrs)

Keywords

  • Two-stream superheterodyne free-electron lasers
  • Two-stream instability
  • Helical electron beams

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