Lienard-Wiechert Potentials and the Method of Images in an RF Free Electron Laser Photoinjector
W. Salah, R.M. Jones
TL;DR
This paper provides a rigorous relativistic analysis of beam transport in an RF photoinjector using Lienard-Wiechert potentials and image charge effects, including velocity-dependent effects, supported by simulations for the ELSA photoinjector.
Contribution
It introduces a comprehensive relativistic model for beam dynamics in RF photoinjectors incorporating image charges and velocity effects, validated through simulations.
Findings
Relativistic effects significantly influence beam transport.
The model accurately predicts beam behavior in the ELSA photoinjector.
Simulations demonstrate the importance of velocity-dependent potentials.
Abstract
Based on Lienard-Weichert retarded potentials and the potential due to the image of charges on the cathode, a rigorous relativistic description of the beam transport inside the RF-photoinjector is presented. The velocity dependent effects are taken into account. Simulations are presented for parameters of the "ELSA" photo-cathode
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Taxonomy
TopicsPhotocathodes and Microchannel Plates · Electron and X-Ray Spectroscopy Techniques · Laser Design and Applications