Abstract
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.
Highlights
Particle accelerators have become a crucial need for advancement in many domains such as nanotechnology, atomic physics, nuclear physics, chemistry and medicine
Another solution is the implementation of a Transverse Gradient Undulator (TGU) that can be used in the Free Electron Laser (FEL) based Laser Plasma acceleration (LPA) line to compensate for the effects of beam energy spread
At the start of COXINEL project, the baseline reference parameters that were examined at the source are presented in Table 3, where the electron beam is considered to be a round Gaussian beam
Summary
Particle accelerators have become a crucial need for advancement in many domains such as nanotechnology, atomic physics, nuclear physics, chemistry and medicine. Due to the high electric fields, electrons are stripped and separated spatially from the heavy ions that have a negligible response in the time-scale of that of the electrons This process creates a plasma with a disequilibrium charge distribution in the perturbed region that can be observed as a wakefield (plasma wave) following the laser. A huge gradient of ∼GeV/m is created between the back of the wakefield (consisting mainly of electrons) and at its center (consisting mainly of ions), in which electrons trapped between these two regions are subjected to an extreme electric force This allows LPA to operate with thousands of times gradients than ones in conventional accelerators, producing extremely compact sources of bright and energetic electrons [6,7,8]. The FEL performance is examined for different initial electron beam parameters for the COXINEL baseline reference case
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