[PDF] Top 20 Modelling a laser plasma accelerator driven free electron laser

... new accelerator techniques. Laser-plasma accelerator (LPA) are a promising accelerator for next generation compact FEL light sources with many potential advantages due to the ... See full document

... alistic electron beam generated by a full start-to-end simula- tion to demonstrate its compatibility with the predicted output from present generation accelerator designs for 1 nm FEL output ...the ... See full document

... An electron beam (green particles) drives a plasma wakefield, represented by its field sum with up to 16 GV/m acceleration fields ...pulse laser (black) ionises neutral helium gas to generate ... See full document

... all-optical plasma lensing using a two-stage setup. An intense femtosecond laser accelerates electrons in a laser wakefield accelerator (LWFA) to 100 MeV over millimeter length ...LWFA ... See full document

... The L3 and L4 images (Figs. 2(e) and 2(f), respectively, before and after the undulator) indicate reasonable focusing and transport of the main peak electrons through the undula- tor. At L3, the mean r.m.s. width is 580 ... See full document

... CTR electron bunch length measurements from a LWFA driven by a single laser beam for two different experimental conditions, observing 1 – 2 fs structure containing ∼ 10 pC of charge, resulting in ... See full document

... longitudinal plasma fi elds, the model can be readily extended to the time- dependent regime where superradiant pulses will evolve [15 – ...in laser-driven betatron oscillations [20, ... See full document

... from electron beams that have insuf fi cient beam quality to lase under normal FEL ...the electron beams generated from plasma accelerator sources which, to date, tend to have relatively high ... See full document

... necessity. Modelling using direct Vlasov solvers [106 – 108] avoids some of these problems, the fidelity of the continuum description employed in an Eulerian Vlasov solver is not sensitive to the local particle ... See full document

... Cerenkov free electron laser (CFEL) [1] is an attractive source of high power microwave generation at short wavelengths, which employs a slow wave medium to slow down the phase velocity of transverse ... See full document

... The plasma wave behaves like a density gr ing wh h causes further collective scattering of the incident light as the instability cycle ...seed laser pulse. In this direct backscatter geometry the pump ... See full document

... free path is more than 10 meters (compared to ion traversal length of about a meter), charge transfer collisions of the ions with the background gas can be ...the electron density and temperature profiles ... See full document

... transforming laser radiation into incoherent and coherent electromagnetic radiation using laser- driven plasma ...the laser wakefield accelerator (LWFA) and show that the ... See full document

... Here we show that just above the threshold for injection it is necessary to take into account the build-up of charge in the sheath-crossing region, as schematically shown in figure 1. We show that near-threshold injection ... See full document

... Advanced Laser-Plasma High-Energy Accelerators towards X-rays (ALPHA-X) programme is developing laser-plasma accelerators for the production of ultra-short electron bunches with ... See full document

... of electron con- duction, is used to model the interaction of the pump laser pre-pulse with the initially solid BK7 glass ...Accurately modelling the pre-plasma formation requires an accurate ... See full document

... necessity. Modelling using direct Vlasov solvers [106–108] avoids some of these problems, the idelity of the continuum description employed in an Eulerian Vlasov solver is not sensitive to the local particle ...3D ... See full document

... 14. S. Wiggins, R. Issac, G. Welsh, E. Brunetti, R. Shanks, M. Anania, S. Cipiccia, G. Manahan, C. Aniculaesei, B. Ersfeld, M. Islam, R. Burgess, G. Vieux, W. Gillespie, A. MacLeod, S. van der Geer, M. de Loos, and D. ... See full document

... To illustrate the effects in a practical example, results from 3D Puffin simulations using parameters which may be expected from a laser plasma accelerator driven SASE FEL are now shown, ... See full document

... in laser technology over the past decade [1, 2] allows Laser-plasma accelerators (LPA) to be seen as the leading technology in advanced accelerators standing out through enormous accelerating ... See full document