Charged particles through magnetic field

  • #1
I have a question that I want to verify , so that i know is my understanding about how the LHC works.
So basically there is this charged particle being thrown into a huge lone tube consisting of superconducting magnet rings and while each of the magnet rings has it's magnetic field traveling around a circle the particle going perpendiculary through many of those gets it's boost more and more and then in the end when two of these tubes with particles traveling through them get together from opposite sides the particle speeds are great enough so that a collision reveals new particles at certain energy's , I guess depending on how fast they were accelerated.

So it's basically a huge Coil gun and the particle is the metal thing or bullet traveling through that gun being kicked by the magnetic fields so that it takes up speed and so has more energy in the end when there is a collision?

Thanks for answers.

Answers and Replies

  • #2
Actually, magnetic field's task is just to deflect proton's trajectory in order to make it circular. As you know, in fact, magnetic force is always perpendicular to the velocity of the charged particle, so it can't increase the magnitude of its velocity but it can deflect it.
If I remember well, usually linear acceleration is achieved thanks to electric fields placed in some fixed zones of the circular path. If you choose the frequency of this electric fields correctly you can "kick" the particle every time it passes trough the field.
I think at LHC the first acceleration is give by a linear accelerator which enters the protons into the circular path and then subsequent accelerations are obtain with many different kind of electric fields.