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@ARTICLE{Ivanyan:644476,
      author       = {Ivanyan, Mikayel and Grigoryan, Bagrat and Grigoryan, Armen
                      and Aslyan, Lusine and Avagyan, Vardan and Babujyan, Hrach
                      and Arutunian, Suren and Floettmann, Klaus and Lemery,
                      Francois},
      title        = {{H}elical {M}otion of a {P}article in a {M}ultilayer
                      {C}ylindrical {W}aveguide},
      reportid     = {PUBDB-2026-00347, arXiv:2501.12802},
      year         = {2025},
      note         = {10 pages, 6 figures},
      abstract     = {An algorithm for calculating the radiation field of a
                      charged point particle performing a helical motion in an
                      infinite cylindrical waveguide with a multilayer side wall
                      is found. The number of layers and their filling is
                      arbitrary. The axis of the helical is aligned with the axis
                      of the waveguide, so that the geometry of the problem has
                      cylindrical symmetry. Explicit expressions for modal
                      frequency distributions and equations for resonant
                      frequencies for single-layer and double-layer waveguides are
                      given. Examples of graphical constructions of modal
                      frequency distributions of modes for single-layer
                      (resistive), double-layer (metal-dielectric) and
                      triple-layer (metal-dielectric with internal NEG coating)
                      waveguides are presented.},
      keywords     = {Waveguide components (autogen) / Resonant frequency
                      (autogen) / Nonhomogeneous media (autogen) / Minimization
                      (autogen) / Mathematical models (autogen) / Trajectory
                      (autogen) / Coatings (autogen) / Electromagnetics (autogen)
                      / Springs (autogen) / Phase distortion (autogen) / Helical
                      Motion (autogen) / Cylindrical Waveguide (autogen) /
                      Impedance (autogen) / Resonance Frequency (autogen) /
                      Radiation Field (autogen) / Geometry Of The Problem
                      (autogen) / Construct Examples (autogen) / Infinity
                      (autogen) / Outer Layer (autogen) / Inner Wall (autogen) /
                      Solution Of Equation (autogen) / Free Space (autogen) /
                      General Solution (autogen) / Velocity Components (autogen) /
                      Relative Permeability (autogen) / Dielectric Layer (autogen)
                      / Particle Velocity (autogen) / Bessel Function (autogen) /
                      Maxwell’s Equations (autogen) / Electrical Components
                      (autogen) / TE Mode (autogen) / Inhomogeneous Equation
                      (autogen) / Tangential Components (autogen) / Amplitude
                      Distribution (autogen) / Cylindrical Coordinate System
                      (autogen) / Expansion Terms (autogen) / Trajectories In
                      Space (autogen) / Translational Motion (autogen) / Smooth
                      Curve (autogen) / Cylindrical Surface (autogen)},
      cin          = {MXL / MPY},
      cid          = {I:(DE-H253)MXL-20160301 / I:(DE-H253)MPY-20120731},
      pnm          = {621 - Accelerator Research and Development (POF4-621)},
      pid          = {G:(DE-HGF)POF4-621},
      experiment   = {EXP:(DE-MLZ)NOSPEC-20140101},
      typ          = {PUB:(DE-HGF)25},
      eprint       = {2501.12802},
      howpublished = {arXiv:2501.12802},
      archivePrefix = {arXiv},
      SLACcitation = {$\%\%CITATION$ = $arXiv:2501.12802;\%\%$},
      doi          = {10.3204/PUBDB-2026-00347},
      url          = {https://bib-pubdb1.desy.de/record/644476},
}