1.5-dimensional simulation of free electron maser amplifiers

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

doi:10.1103/physrevstab.8.090701

Cited by 3 publications

(1 citation statement)

References 19 publications

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“…But simplified 1D or 2D models like [10] or ours taking into account the principle physical mechanisms are also very efficient.…”

Section: Vfel Mathematical Formulationmentioning

confidence: 99%

Numerical Analysis of Lasing Dynamics in Volume Free Electron Laser

Sytova

2008

Mathematical Modelling and Analysis

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Abstract. Nonlinear phenomena originating in volume free electron laser (VFEL) are investigated by methods of mathematical modelling using computer code VOLC. It was demonstrated the possibility of excitation of quasiperiodic oscillations not far from threshold values of electron beam current density and VFEL resonator length. It was investigated sensibility of numerical solution to initial conditions for different VFEL regimes of operation. Parametric maps with respect to electron beam current and detuning from synchronism condition present complicated root to chaos with windows of periodicity in VFEL. Investigation of chaotic lasing dynamics in VFEL is important in the light of experimental development of VFEL in Research Institute for Nuclear Problems.

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“…But simplified 1D or 2D models like [10] or ours taking into account the principle physical mechanisms are also very efficient.…”

Section: Vfel Mathematical Formulationmentioning

confidence: 99%

Numerical Analysis of Lasing Dynamics in Volume Free Electron Laser

Sytova

2008

Mathematical Modelling and Analysis

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Equilibrium electrons in free-electron lasers with a 3D helical wiggler and a guide magnetic field: Nonlinear simulations

Huang

Wang

et al. 2012

Phys. Rev. ST Accel. Beams

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Nonlinear simulations are devoted to the comparative study of the equilibrium electrons' motion and stability in the combination of a three-dimensional helical wiggler and a positive or reversed guide magnetic field, where effects of the self-field, off-axis guiding center and adiabatic magnetic field are included. It is shown that a reversed guide magnetic field configuration brings the electron motion much smaller Larmor radius and transverse displacement span than a positive guide magnetic field does, and consequently, provides better transportation quality of the electron beam. Although the electron motion far from the resonance and antiresonance is stable in both the positive and the reversed guide magnetic field configurations, fluctuation induced by a reversed guide magnetic field is smaller than that by a positive guide magnetic field, especially in the adiabatic region of the wiggler. In a certain parameters domain, the self-field of the electron beam is advantageous to confine the electrons' motion at antiresonance.

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Three-Dimensional Model for Green's Function Charged-Particle-Beam Simulations in Cylindrical Geometry

Ilyenko

Yatsenko

2011

IEEE Trans. Plasma Sci.

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1.5-dimensional simulation of free electron maser amplifiers

Cited by 3 publications

References 19 publications

Numerical Analysis of Lasing Dynamics in Volume Free Electron Laser

Numerical Analysis of Lasing Dynamics in Volume Free Electron Laser

Equilibrium electrons in free-electron lasers with a 3D helical wiggler and a guide magnetic field: Nonlinear simulations

Three-Dimensional Model for Green's Function Charged-Particle-Beam Simulations in Cylindrical Geometry

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