Abstract
The quality of the relativistic electron beam in a free-electron laser is an important factor in determining its efficiency of radiation production. In this work, the problem of beam quality is addressed by considering an electron beam that has a scattered velocity distribution but is otherwise monoenergetic. A newly developed particle-in-cell plasma simulation code is used to study the nonlinear stage of the free-electron laser; in particular, the efficiency of energy extraction is determined as a function of the amount of beam scattering. It is found that the mean scattering angle of the electron beam of a free-electron laser in the Raman regime is a much more sensitive parameter than expected. The efficiency of radiation production decreases rapidly for electron beams with finite scattering angles.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.