Progress on Experiments towards LWFA-driven Transverse Gradient Undulator-Based FELs

Free Electron Lasers (FEL) are commonly regarded as the potential key application of laser wakefield accelerators (LWFA). It has been found that electron bunches exiting from state-of-the-art LWFAs exhibit a normalized 6-dimensional beam brightness comparable to those in conventional linear accelera...

Full description

Saved in:
Bibliographic Details
Published inarXiv.org
Main Authors Bernhard, Axel, Veronica Afonso Rodriguez, Kuschel, Stephan, Leier, Maria, Peiffer, Peter, Saevert, Alexander, Schwab, Matthew, Werner, Walter, Widmann, Christina, Will, Andreas, Mueller, Anke-Susanne, Kaluza, Malte
Format Paper
LanguageEnglish
Published Ithaca Cornell University Library, arXiv.org 13.12.2017
Subjects
Accelerators
Divergence
Free electron lasers
Initial conditions
Linear accelerators
Online AccessGet full text

Cover

More Information
Summary:Free Electron Lasers (FEL) are commonly regarded as the potential key application of laser wakefield accelerators (LWFA). It has been found that electron bunches exiting from state-of-the-art LWFAs exhibit a normalized 6-dimensional beam brightness comparable to those in conventional linear accelerators. Effectively exploiting this beneficial beam property for LWFA-based FELs is challenging due to the extreme initial conditions particularly in terms of beam divergence and energy spread. Several different approaches for capturing, reshaping and matching LWFA beams to suited undulators, such as bunch decompression or transverse-gradient undulator schemes, are currently being explored. In this article the transverse gradient undulator concept will be discussed with a focus on recent experimental achievements.
ISSN:2331-8422