Growth Rates in Smith-Purcell FEL

2017/02/02 by K. V. Ivanyan, Ivanyan, K. V.
Engineering · Physics and Astronomy · #Accelerator Physics (physics.acc-ph) #Advanced Materials Characterization Techniques #FOS: Physical sciences #Magnetic properties of thin films #Particle Accelerators and Free-Electron Lasers

paper · pdf · doi:10.48550/arxiv.1702.00678

openalex publication_date 2017/02/02 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

In the framework of the earlier derived dispersion equation, we study induced Smith Purcell (SP) radiation of relativistic electron beam in the absence of a resonator. We offer a new method for calculation of coefficients for partial amplitudes in the case of rectangular grating. Using this method we calculate the growth rate of the SPFEL with a rectangular grating. The growth rate dependences on harmonic number, beam current, observation angle and relativistic factor are presented.

Citations

• Smith-Purcell Radiation

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