How is the light removed from the storage ring for use in the beamlines?
Beamlines use two different sources of synchrotron light – bending magnets and insertion devices. As the electron beam passes through a bending magnet, it emits a wide fan of synchrotron light, which is channelled into a beamline. Beamlines with the prefix B use bending magnets as the source. Insertion device beamlines use special arrays of magnets inserted into the straight sections of the storage ring. These cause the electron beam to follow a wiggling, or undulating path. Beamlines with the prefix I use insertion devices as the source, whereas those prefixed with B use bending magnets.