abstract:Stochastic cooling is a form of particle beam cooling. It is used in some particle accelerators and storage rings to control the emittance of the particle beams in the machine.
By 1968 he had concluded that they could be kept in order by stochastic (ie, random) cooling: identifying a wayward particle on one side of the accelerator ring, sending a signal directly across to the other end, and tweaking the magnetic field to nudge the oncoming errant particle back into the beam.