scholarly journals Electron Beam Brightness and Undulator Radiation Brilliance for a Laser Plasma Acceleration Based Free Electron Laser

Instruments ◽  
2020 ◽  
Vol 4 (1) ◽  
pp. 1 ◽  
Author(s):  
Amin Ghaith ◽  
Alexandre Loulergue ◽  
Driss Oumbarek ◽  
Olivier Marcouillé ◽  
Mathieu Valléau ◽  
...  
Keyword(s):  
Electron Beam ◽  
Laser Plasma ◽  
Free Electron ◽  
Free Electron Laser ◽  
Analytical Approach ◽  
Electron Beams ◽  
Plasma Acceleration ◽  
Undulator Radiation ◽  
Transport Line ◽  
Laser Plasma Acceleration

We report here on spontaneous undulator radiation and free electron laser calculations after a 10-m long transport line (COXINEL) using a Laser Plasma acceleration (LPA) source. The line enables the manipulation of the properties of the produced electron beams (energy spread, divergence, dispersion) in view of light source applications. The electron beam brightness and undulator radiation brilliance are addressed by an analytical approach enabling us to point out the influence of chromatic effects in the COXINEL case.

scholarly journals An application of laser–plasma acceleration: towards a free-electron laser amplification

2016 ◽  
Vol 58 (3) ◽  
pp. 034020 ◽  
Author(s):  
M E Couprie ◽  
M Labat ◽  
C Evain ◽  
F Marteau ◽  
F Briquez ◽  
...  
Keyword(s):  
Laser Plasma ◽  
Free Electron ◽  
Free Electron Laser ◽  
Plasma Acceleration ◽  
Laser Amplification ◽  
Laser Plasma Acceleration

scholarly journals COXINEL: Towards Free Electron Laser Amplification to Qualify Laser Plasma Acceleration

2017 ◽  
Vol 45 (2) ◽  
pp. 94
Author(s):  
Marie-Emmanuelle COUPRIE ◽  
Thomas ANDRE ◽  
Igor ANDRIYASH ◽  
Martin KHOJOYAN ◽  
Amin GHAITH ◽  
...  
Keyword(s):  
Laser Plasma ◽  
Free Electron ◽  
Free Electron Laser ◽  
Plasma Acceleration ◽  
Laser Amplification ◽  
Laser Plasma Acceleration

scholarly journals Towards a free electron laser using laser plasma acceleration on COXINEL

2019 ◽  
Author(s):  
M. E. Couprie ◽  
T. André ◽  
F. Blache ◽  
F. Bouvet ◽  
F. Briquez ◽  
...  
Keyword(s):  
Laser Plasma ◽  
Free Electron ◽  
Free Electron Laser ◽  
Plasma Acceleration ◽  
Laser Plasma Acceleration

scholarly journals Skew Quadrupole Effect of Laser Plasma Electron Beam Transport

2019 ◽  
Vol 9 (12) ◽  
pp. 2447 ◽  
Author(s):  
Driss Oumbarek Espinos ◽  
Amin Ghaith ◽  
Thomas André ◽  
Charles Kitégi ◽  
Mourad Sebdaoui ◽  
...  
Keyword(s):  
Electron Beam ◽  
Laser Plasma ◽  
Free Electron ◽  
Free Electron Laser ◽  
Plasma Electron ◽  
Beam Transport ◽  
Emittance Growth ◽  
Quadrupole Effect ◽  
Beam Parameters ◽  
Electron Beam Transport

Laser plasma acceleration (LPA) capable of providing femtosecond and GeV electron beams in cm scale distances brings a high interest for different applications, such as free electron laser and future colliders. Nevertheless, LPA high divergence and energy spread require an initial strong focus to mitigate the chromatic effects. The reliability, in particular with the pointing fluctuations, sets a real challenge for the control of the dispersion along the electron beam transport. We examine here how the magnetic defects of the first strong quadrupoles, in particular, the skew terms, can affect the brightness of the transported electron beam, in the case of the COXINEL transport line, designed for manipulating the electron beam properties for a free electron laser application. We also show that the higher the initial beam divergence, the larger the degradation. Experimentally, after having implemented a beam pointing alignment compensation method enabling us to adjust the position and dispersion independently, we demonstrate that the presence of non-negligible skew quadrupolar components induces a transversal spread and tilt of the beam, leading to an emittance growth and brightness reduction. We are able to reproduce the measurements with beam transport simulations using the measured electron beam parameters.

scholarly journals Tunable High Spatio-Spectral Purity Undulator Radiation from a Transported Laser Plasma Accelerated Electron Beam

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
A. Ghaith ◽  
D. Oumbarek ◽  
E. Roussel ◽  
S. Corde ◽  
M. Labat ◽  
...  
Keyword(s):  
Electron Beam ◽  
Laser Plasma ◽  
Second Harmonic ◽  
Spectral Signature ◽  
Light Sources ◽  
Spectral Brightness ◽  
Spectral Purity ◽  
Strong Electron ◽  
Undulator Radiation ◽  
Transport Line

AbstractUndulator based synchrotron light sources and Free Electron Lasers (FELs) are valuable modern probes of matter with high temporal and spatial resolution. Laser Plasma Accelerators (LPAs), delivering GeV electron beams in few centimeters, are good candidates for future compact light sources. However the barriers set by the large energy spread, divergence and shot-to-shot fluctuations require a specific transport line, to shape the electron beam phase space for achieving ultrashort undulator synchrotron radiation suitable for users and even for achieving FEL amplification. Proof-of-principle LPA based undulator emission, with strong electron focusing or transport, does not yet exhibit the full specific radiation properties. We report on the generation of undulator radiation with an LPA beam based manipulation in a dedicated transport line with versatile properties. After evidencing the specific spatio-spectral signature, we tune the resonant wavelength within 200–300 nm by modification of the electron beam energy and the undulator field. We achieve a wavelength stability of 2.6%. We demonstrate that we can control the spatio-spectral purity and spectral brightness by reducing the energy range inside the chicane. We have also observed the second harmonic emission of the undulator.

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