Physical Review Special Topics. Accelerators and Beams (Sep 2005)

1.5-dimensional simulation of free electron maser amplifiers

  • A. V. Elzhov,
  • A. K. Kaminsky,
  • E. A. Perelstein,
  • S. N. Sedykh,
  • A. P. Sergeev

DOI
https://doi.org/10.1103/PhysRevSTAB.8.090701
Journal volume & issue
Vol. 8, no. 9
p. 090701

Abstract

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A 1.5-dimensional model of Compton/Raman free-electron laser (FEL) amplifiers with helical wigglers has been composed by using the helical-trajectory approach. This model has been used to analyze results of earlier experimental investigations of Compton/Raman millimeter-wavelength FEL amplifiers. The results of the 1.5D simulation are in reasonable agreement with 3D simulation and experimental results obtained in the regimes with reversed and zero guide magnetic fields. Thus a convenient tool has been developed to determine basic amplification parameters for possible experiments in the future.