Radiation from a charge rotating inside a cylindrical grating

A. S. Kotanjyan, A. R. Mkrtchyan, A. A. Saharian

Research output: Contribution to journalArticlepeer-review


We investigate the spectral-angular distribution for the radiation emitted by a point charge moving along a helical trajectory inside a cylindrical grating with conducting strips. Two types of the radiation processes are realized: undulator and Smith–Purcell radiations. Their relative contributions to the total radiation intensity are discussed in various asymptotic regions of the parameters describing the diffraction grating and for large harmonics. The region of the parameters is specified for which the interference effects between the undulator and Smith–Purcell radiations are essential.

Original languageEnglish
Pages (from-to)173-176
Number of pages4
JournalNuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
Publication statusPublished - 1 Jul 2017


  • Helical undulator
  • Smith–Purcell radiation
  • Synchrotron radiation

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Instrumentation

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