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  • For theory group head, successful research and leadership comes from finding and keeping the right balance

    Jianwei Qiu has very full days managing his responsibilities at the lab. As Jefferson Lab’s associate director for theoretical and computational physics, most of his days are filled to the brim by attending meetings, reviewing papers and serving on the national and international advisory and review committees for funding agencies and various science programs.

  • Passion and commitment to hospitality drives Jefferson Lab conference manager, Anita Seay

    Anita Seay credits a fortuitous college job with laying the foundation for a career in hospitality and event management that eventually led her to a full-time role as events services conference manager at Jefferson Lab.

  • “You can’t really describe what it feels like to save someone’s life. You have to depend on others to keep everyone safe, especially when you are in an unstable environment.”

    Brian Hanlon – Security and Services Manager at Jefferson Lab

    U.S. Coast Guard – 1989-1996

    As Brian Hanlon’s teenage eyes skimmed the surf, he took in the large U.S. Coast Guard cutters just off of the shore. Growing up just a block shy from the Florida coast, he heard the stories of the search and rescue missions and was drawn to them.

  • “I have chosen education and good science as my way to serve my country but joining the military was one of the best decisions of my life," said Tadepalli.

    Arun Tadepalli – Hall A/C Postdoc at Jefferson Lab

    Army - 2004-2012

    “You need it? I got it.” This was the motto Arun Tadepalli lived by during his time in the military. Impeccably organized, as a Unit Supply Specialist in the Army, Tadepalli was responsible for ensuring his fellow soldiers had everything they needed to get the job done.

  • FEL

    Jefferson Lab is home to the world's most powerful tunable Free-Electron Laser.  

    Jefferson Lab is home to the world's most powerful tunable Free-Electron Laser.  The FEL uses the same superconducting radiofrequency technology as Jefferson Lab's CEBAF accelerator. The FEL has been used to conduct an extensive range of applied and basic research.Unique to the FEL is the range of light it can produce. This tunability allows scientists to test multiple wavelengths of light. Another innovation that makes Jefferson Lab's FEL unique is its use of the energy-recovery linac, which allows the FEL to recycle energy from its electrons.

  • The new experimental Hall D will use the electron beam to produce a coherent bremsstrahlung beam and house a solenoid detector to carry out a program in gluonic spectroscopy to experimentally test current understanding of quark confinement.

    The 12 GeV Upgrade is highly cost effective due to existing features of the Continuous Electron Beam Accelerator Facility (CEBAF). The superconducting radiofrequency linear accelerators contain superconducting niobium cavities operating, on average, at 50 percent above their design specifications in accelerating gradient and Q. The success of this technology opens up the possibility of a relatively simple, inexpensive upgrade of CEBAF's top energy.

  • Hall C is 150 feet in diameter and 60 feet tall.

    Hall C is 150 feet in diameter and 60 feet tall. Hall C houses a High Momentum Spectrometer and has been used extensively for large-installation experiments. These are stand-alone experiments requiring unique or highly specialized detectors, magnets and targeting systems. Experiments run in Hall C have covered a broad spectrum of topics, including the structure of pions, kaon particle production, excited states of the proton, and duality.

  • It is equipped with the CEBAF Large Acceptance Spectrometer, or CLAS, which is shaped like an elongated sphere.

    Hall B is the smallest of Jefferson Lab's three experimental halls. It is 98 feet in diameter and 65 feet from floor to ceiling. It is equipped with the CEBAF Large Acceptance Spectrometer, or CLAS, which is shaped like an elongated sphere. Experiments in this hall can receive electron beam or a photon beam. A major research program in Hall B has been the investigation of the quark-gluon structure of protons and neutrons and a detailed study of excited states.

  • Hall A is the largest of Jefferson Lab's three experimental halls.

    Hall A is the largest of Jefferson Lab's three experimental halls. It is 174 feet across and 80 feet tall from floor to ceiling. Hall A is outfitted with two primary detector systems – both high-resolution spectrometers and each weighing about 450 tons. The systems act like huge microscopes, allowing scientists to "see" inside an atom. Hall A is used primarily for experiments that study the structure of nuclei, and of protons and neutrons.

  • Detector Expert Pushes Limits to the Edge of Reality

    When one makes a list of South African sports, it is unlikely that snowboarding would make the cut. However, Jefferson Lab Staff Scientist Mark Macrae Dalton did not let geography stand in the way of pursuing the sport during his years at the University of Witwatersrand, where he earned his undergraduate degree, graduate degree and Ph.D.