Garden Gnome:
If I am reasonably clear here, what the accelerator is like, is a gun barrel, but the barrel consists of a magnetic field, which magnetically propels (accelerates) the "bullet" down a channel. The Magnetic Field is created by wire windings.
You must be aware of something starting out though; as you accelerate the particle faster, and as it approaches C (670 million mph), you will have massive drains on your electrical power source. Formerly, many of the accelerator labs operated late at night so as not to disturb the general population's power supply, and I suppose the same holds true.