Jefferson Labs Experimental Halls

Experimental Halls A, B and C (from left to right) as seen from overhead. The halls, which appear as  circles, are massive facilities that house sophisticated equipment as large as a house. A fourth experimental hall, Hall D, is under construction.


As a world-leading nuclear physics research facility, Jefferson Lab is engaged in many exciting science programs and has developed areas of expertise that support its primary mission to explore the nucleus of the atom.

These programs and areas of expertise include experimental nuclear physics, computational and theoretical nuclear physics, accelerator science, cryogenics, superconducting radiofrequency (SRF) technologies, radiation detectors, medical imaging devices and free-electron lasers.

Jefferson Lab is a world leader in SRF technology, which it developed in support of its Continuous Electron Beam Accelerator Facility (CEBAF) – the first large-scale application of SRF in the U.S.

The lab’s SRF technology facilitated the development of its Free-Electron Laser and Energy Recovery Linac (ERL), both key to future light sources.