 This gradual loss of particles is called beam lifetime, and means that storage rings must be periodically injected with a new complement of particles.Injection of particles into a storage ring may be accomplished in a number of ways, depending on the application of the storage ring.The simplest method uses one or more pulsed deflecting dipole magnets (injection kicker magnets) to steer an incoming train of particles onto the stored beam path; the kicker magnets are turned off before the stored train returns to the injection point, thus resulting in a stored beam.