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Journal Article

Emittance conservation by tailored focusing profiles in a plasma accelerator

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Dornmair,  Irene
International Max Planck Research School for Ultrafast Imaging & Structural Dynamics (IMPRS-UFAST), Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society;
CFEL, Center for Free-Electron Laser Science, 22607 Hamburg, Germany;
University of Hamburg, Institute of Experimental Physics, 22761 Hamburg, Germany;

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PhysRevSTAB.18.041302.pdf
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Citation

Dornmair, I., Floettmann, K., & Maier, A. (2015). Emittance conservation by tailored focusing profiles in a plasma accelerator. Physical Review Special Topics - Accelerators and Beams, 18(4): 041302. doi:10.1103/PhysRevSTAB.18.041302.


Cite as: https://hdl.handle.net/11858/00-001M-0000-002A-6019-E
Abstract
Laser-plasma accelerators, providing high electric field gradients, are promising candidates to drive next-generation compact light sources and high-energy applications. However, conservation of beam emittance, a prerequisite for future applications, is very challenging, as the accelerated beam has to be matched to the plasma’s strong focusing forces. Here we derive with simulations ideal laser and plasma density profiles to match an electron beam in and out of a plasma stage, thus relaxing required beta functions for injection and minimizing divergence and emittance growth after the plasma.