The Brookhaven Linear Accelerator (Linac) operation started in 1971 as a major upgrade to the Alternating Gradient Synchroton (AGS) complex. Its purpose is to provide accelerated protons to the AGS for use in RHIC and to the Brookhaven Linac Isotope Producer (BLIP). The basic components of the Linac include ion sources, a radiofrequency quadropole, and nine accelerator radiofrequency cavities spanning the length of a 459 foot tunnel (right).
The Linac is capable of producing a negatively charged hydrogen beam of up to 200 million electron-volts (MeV) energy and 135 microampere average current. The Linac's location relative to the rest of the AGS complex is shown on the map (right).