Fully 3D time-dependent simulation of free electron laser within an overmoded rectangular waveguide
Year: 2020
Type: article
Abstract: Numerical simulation codes are basic tools for designing Free Electron Lasers (FELs). This paper describes a numerical approach for the time-dependent, three-dimensional simulation of the free electron laser (FEL) using a rectangular waveguide within overmoded configuration when the radiation wavelength is much shorter than the waveguide cut-off wavelength. Instead of developing a new code, the Genesis simulation code is modified for our purpose. This approach presented here can be used for extending the capacity of Genesis code to cover this special configuration. The major modification is to apply the boundary conditions on the waveguide walls to the steady-state radiation field equations in a limited rectangular region and the full Cartesian mesh using the Alternating Direction Implicit (ADI) integration scheme to solve the field equation remains adopted.
Source: Journal of Instrumentation
Authors: W. Li, Z. Zhao, R. Huang, Z. He, H. Li, Q. Jia, L. Wang
Language: English
Subfield: Electrical and Electronic Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: bronze
OpenAlex ID: W2807077750