Electrons generate the synchrotron radiation that was used at the end stations of beamlines. The electrons are first produced by a 100 KeV triode electron gun. These electrons then proceeded through a linear accelerator (linac), which got them up to 120 MeV. Next, the electrons entered a booster ring, where their energy was increased to 750 MeV, and were then injected into either the VUV ring or the X-ray ring. In the VUV ring, the electrons were further ramped up to 825 MeV and electrons in the X-ray ring were ramped to 2.8 GeV.