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Radio frequency cavities, or RF cavities, receive RF energy from a klystron and transfer it to electrons as they pass through the cavities on their way around the booster synchrotron and storage ring. Just as in the klystron, RF radiation interacts with electrons, adding energy to increase or maintain their speed.icrowaves are radio waves with a wavelength between about one meter and one millimeter, which are the wavelengths used for radio and television broadcasts as well as radar and microwave ovens.
Accelerators typically use resonant RF cavities formed from or coated with superconducting materials. Electromagnetic fields are excited in the cavity by coupling in an RF source with an antenna. When the RF frequency fed by the antenna is the same as that of a cavity mode, the resonant fields build to high amplitudes.Charged particles passing through apertures in the cavity are then accelerated by the electric fields and deflected by the magnetic fields.n general, much care and attention to detail must be exercised in the experimental setup of SRF cavities so that there is not Qo degradation due to RF losses in ancillary components, such as stainless steel vacuum flanges that are too close to the cavity's evanescent fields.