The Full Form of CEBA is Continuous Electron Beam Accelerator.

CEBAF is a world-leading facility in the experimental study of hadronic matter, used by scientists to probe the interior of the nucleus to study its properties.

The Continuous Electron Beam Accelerator Facility (CEBAF), at Thomas Jefferson National Accelerator Facility (TJNAF), provides high quality beams of polarized electrons that allow scientists to extract information on the quark and gluon structure of protons and neutrons.  Until 2012, CEBAF operated as a pair of superconducting radio frequency linear accelerators (linacs) in a “racetrack” configuration, capable of delivering 6 GeV (Giga electron-Volt) electron beams simultaneously to three experimental halls.  In 2012, the facility began a major upgrade project to double the maximum energy to 12 GeV, and add new experimental apparatus. Primary goals of the 12 GeV CEBAF Upgrade include doubling the accelerating voltages of the linacs by adding ten new high‐performance, superconducting radiofrequency (SRF) cryomodules (CMs), doubling the capacity of the existing cryogenics cooling plant, and adding eight superconducting magnets.  The upgrade also includes the construction of a new experimental hall (Hall D) for dedicated research on exotic mesons produced by energetic photons incident on a target.