This figure shows images generated using data from a particle-in-cell simulation of a two bunch PWFA experiment. The electron bunches are moving from the top left towards the bottom right. The image shows isosurfaces of electron density (in bright green) and the parallel electric fields (in blue and red). The beam electrons are shown as dots and the dot colors represent the energy of the beam electrons. The simulations were done using the UCLA computer code called QuickPIC and the visualization was done using VisIt. Results from the experiment as well as simulation results were published in Nature (Litos et al, Nature, vol. 515, pp. 512-515).

Credit: This image was generated by Weiming An and Frank S. Tsung using VisIt. The simulation was performed on Blue Waters by Weiming An using the UCLA particle-in-cell code QuickPIC.