%0 Journal Article
%T Permanent Magnet-Based Quadrupoles for Plasma Acceleration Sources
%A Amin Ghaith
%A Charles Kit¨¦gi
%A Driss Oumbarek
%A Fabrice Marteau
%A Marie-Emmanuelle Couprie
%A Mathieu Vall¨¦au
%J -
%D 2019
%R https://doi.org/10.3390/instruments3020027
%X Abstract The laser plasma accelerator has shown a great promise where it uses plasma wakefields achieving gradients as high as GeV/cm. With such properties, one would be able to build much more compact accelerators, compared to the conventional RF ones, that could be used for a wide range of fundamental research and applied applications. However, the electron beam properties are quite different, in particular, the high divergence, leading to a significant growth of the emittance along the transport line. It is, thus, essential to mitigate it via a strong focusing of the electron beam to enable beam transport. High-gradient quadrupoles achieving a gradient greater than 100 T/m are key components for handling laser plasma accelerator beams. Permanent magnet technology can be used to build very compact quadrupoles capable of providing a very large gradient up to 500 T/m. We present different designs, modeled with a 3D magnetostatic code, of fixed and variable systems. We also review different quadrupoles that have already been built and one design is compared to measurements. View Full-Tex
%K quadrupoles
%K permanent magnets
%K laser plasma acceleration
%K free electron laser
%U https://www.mdpi.com/2410-390X/3/2/27