Untitled AI art by @mature-celestial1

A schematic diagram of a linear accelerator showing two sections: one for Traveling Waveguide and one for Standing Waveguide. The Traveling Waveguide is a long cylindrical metal tube with red sinusoidal waves moving from left to right, green particle dots moving along the tube, and a microwave source at the start. The Standing Waveguide is a similar tube with fixed red sinusoidal waves showing nodes and antinodes, green particles accelerating at antinodes, and wave reflections at both ends. Label each section as "Traveling Wave" and "Standing Wave." Include a simple scale, clear colors, and a white/grey background for mobile visibility.