Ultra-Compact Free-Electron Laser Advanced Model for Carbon Nano-Tube Tip

Abstract

In this study, we analyzed the design of a source lens for a free-electron laser (FEL) module and proposed an optimized module equipped with multiple tips using carbon nano-tube (CNT) paste. We proposed the combination of a wiggler structure and source lens structure optimized for the electron beam trajectory, using an electrostatic wiggler. The optimal configuration consisted of a circular extractor and accelerator electrodes (to reflect the tip structure) and a rectangular limiting aperture (to reflect the wiggler structure). We also investigated the use of multiple electron tips and demonstrated that the optimal configuration obtained using the CNT paste was the most efficient configuration for a FEL module. These findings provide valuable insights into the design of high-performance FEL modules.