Magnet Types in Particle Accelerators
Magnet Types in Particle Accelerators
Major components of circular particle accelerators (for example LHC in CERN) are its magnets. In this Demonstration, you can study the forces on moving charged particles in a magnetic field.
The locator represents a particle moving perpendicularly to the screen. If the particle is positively charged, it moves in the direction into the screen, away from you; if the particle is negative, it moves in the direction out of the screen, toward you.
Magnetic dipoles are used to deflect the particle beam into a circular orbit. Magnetic quadrupole magnets, in addition, focus the beam in a transverse plane (vertically by focusing or horizontally by defocusing). Magnetic sextupoles are used to focus the beam in a longitudinal direction (changing the so-called chromaticity of the beam).