Jefferson Lab has four experimental halls. Hall A is the largest of these four experimental staging areas. It is 174 feet across and 80 feet tall from the floor to the highest spot on its domed ceiling. The foundation for the hall is 35 feet below ground.
Hall A is outfitted with two primary detector systems – both high-resolution spectrometers, each weighing about 3 million pounds or 1,500 short tons. The hall is used primarily for experiments that study the structure of the nucleus and the protons and neutrons it contains.
Jefferson Lab has four experimental halls. Hall C is 150 feet in diameter and 60 feet tall.
Hall C houses two large spectrometers, the High Momentum Spectrometer and the new Super High Momentum Spectrometer. The hall also provides space for temporary installation of other detectors such as the Neutral Particle Spectrometer and the Large Acceptance Detector.
The research equipment in Hall C is used to study form factors and 3-D structure of simple quark systems, and short range structure in nuclei.
Thomas Jefferson National Accelerator Facility is a U.S. Department of Energy Office of Science national laboratory. Jefferson Lab's unique and exciting mission is to expand our knowledge of the universe by studying the basic building blocks of matter within the nucleus: subatomic particles known as quarks and gluons.
