Looking back towards the South Linear Accelerator, it is easier to see what is happening to the beam. Each of the five pipes on the right contain electrons of a different energy headed towards the experimental halls. Electrons that are going to make another pass around the accelerator are steered to the West Arc in the four pipes on the left. Cooling water for the electromagnets is held in the two large pipes near the ceiling.
Crawl under the beam pipe to get back to your original view.