An Etymological Dictionary of Astronomy and Astrophysics

The frequency with which a → non-relativistic particle of charge q and mass m turns in a cyclotron with
→ uniform magnetic field B. The equality of the → centripetal force to the → Lorentz force leads to the expression: by: f_cycl = qB/2πm. For → relativistic case, the frequency is smaller and is called
→ synchrotron frequency.

See also: → cyclotron; → frequency.