Accelerators and Magnets - Key

e+e- Colliders



If you graph energy versus (circumference x magnetic field strength), it will be a straight line. That is, as the energy increases, the radius of the circle and the strength of the magnetic field have to increase to have sufficient force to keep the particles in the circular path!

Doesn't this relate to what you learned about tracks of charged particles in a magnetic field? There we used radius instead of circumference, but that just transforms the data by a constant.

Remember, p = 0.3 (q) (R) (B), when radius is in centimeters and B (magnetic field) is in Teslas. Here we used energy instead of momentum, but they are nearly equal at these high energies.


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