Optical elements

Magnets ensure that the electrons may circle in the storage ring. The main components are the dipoles (32x), the quadrupoles (144x) and the sextupoles (112x). The dipoles enable the circular orbit of the electrons. The quadrupoles compensate the natural behavior of electrons to drift apart. Sextupoles make small corrections on the quadrupoles and are important for storing the beam over a longer period of time.