Utilizing Monte Carlo Modeling of electron trajectories Electron Flight Simulator is a software tool designed to make your job easier. It can help you understand difficult samples, show the best way to run an analysis, and help explain results to others. With it you can see how the electron beam penetrates your sample, and where the X-ray signal comes from, for a wide variety of microscope conditions. You can model multiple layers, particles, defects, inclusions, and cross-sections. Any sample chemistry can be modeled.