Five new detector segments, called drift chamber assemblies, are being constructed and tested at Old Dominion University in Norfolk, VA. These segments will be installed in Jefferson Lab's Hall B for the 12 GeV Upgrade. Once completed, this drift chamber assembly will contain about 5,000 wires.

<<< Arthur Bern, an Old Dominion University physics undergraduate, affixes alligator clip to a wire he's just strung.

Critical to the success of the SRF equipment fabricated at Jefferson Lab is that all of it be exceptionally clean. The slightest impurities, no matter how small, can adversely impact the SRF equipment, and delay or halt the lab's nuclear physics experiments. In this photo, Shahid Ahmed is using a plasma cleaning process to remove contaminants from a niobium cavity.

<<< Shahid Ahmed plasma cleaning an SRF cavity.

Jefferson Lab's newest facility, the 70,000-square-foot Technology & Engineering Development (TED) building, stands out on a summer night. Opened in May, the TED provides much-needed office and technical space. It is part for the Technology & Engineering Development Facility (TEDF) project that will provide the lab with the latest equipment and space for engineers and the Superconducting Radiofrequency (SRF) Institute. TEDF is designed to achieve Leadership in Energy and Efficiency Design (LEED) gold certification.

<<< TED lights are programmed to turn on for set hours on work days, and are programmed off on weekends and holidays to conserve energy.

New klystrons - the blue cylinders - for the 12 GeV Upgrade project have been installed to power Jefferson Lab's accelerator cavities. A total of 80 new klystrons will be installed to amplify  superconducting radiofrequency waves to accelerate the particle beam when the upgrade is completed.

<<< A new klyston that was recently installed as part of the lab's 12 GeV Upgrade.

As the Jefferson Lab prepares to double the power of its accelerator to 12 GeV, several cryogenics systems need to be built or improved. Cryogenics makes it possible to achieve ultra-cold (-456 degrees F) operation of the accelerator and associated experimental equipment. Here a lab worker is busy welding internal components for the cryogenics distribution can for Hall D.

<<< Jay Noble welding components on a cryogenic distribution can.