Jefferson Lab Weekly Briefs July 25, 2012
Jefferson Lab Weekly Briefs
July 25, 2012
12 GeV Upgrade
The 12 GeV team has integrated the installation plans into the lab-wide integrated schedule, and monthly progressing to update the schedule has started. The 12 GeV team continues to participate in “Long Shutdown” planning team to coordinate 12 GeV installation activities. As installation activities increase in the completed conventional facilities, weekly meetings with Facilities Management and Logistics ensure coordination and support. The team has finalized all transportation, material handling equipment, space, storage and waste/recycle needs. Evaluation of needs will continue throughout the shutdown. Installation activities at Hall D are increasing and are being coordinated through the Hall D work coordinator.
The test of the C100-4 cryomodule in zone 2L22 in the tunnel was successfully completed last week. Work on the swing shift is now focused on tests of radio frequency controls in the South Linac new zones SL23, 24 and 25. Tunnel work and magnet rework for the spreaders and recombiners continue. Many alignment activities and updates of the personnel safety system in many areas also continue. Preparation and plans are in full swing for the planned warm-up of the Central Helium Liquefier, scheduled to start on Aug. 1. Demolition in the Test Lab is in progress in areas of the old cleanroom, while the main concrete wall will be attacked next Monday. Progress of the Test Lab demolition work is necessary for the timely recovery of SRF testing in the Vertical Test Area and the Cryomodule Test Cave.
Center for Theoretical and Computational Physics
In a recent paper, the problem of calculating many baryon states in lattice QCD is addressed. Two approaches are presented that allow the multi-baryon correlation functions to be determined in a computationally manageable amount of time. Examples are shown for systems with the quantum numbers of the light nuclei, such as helium, beryllium, carbon, oxygen and silicon.
JLab Calendar of Events
Aug. 3: JLab 2012 Summer Interns Poster Session
Environment, Safety, Health and Quality
Vehicle Back-up alarms
Once you hear the back-up alarm, never try to cross behind the vehicle; give the backing vehicle a safe path in which to maneuver. For the backing vehicle, you may be in one of several of the driver’s blind spots, so don’t assume the driver can see you. Move to a safe area to the side and away from the rear of the vehicle as quickly as you can. Yell, honk your vehicle's horn, wave your arms or do whatever you can to make the driver aware of your presence, if you cannot move out of the way.
Computing and Networking Infrastructure
EEL Network Maintenance Planned for July 31
JSA Initiatives Fund Proposals Deadline Nears
Governor's School Mentorship Program
JLab Community Invited to Intern Poster Session on Aug. 3
Tracking Thomas at JLab
Congratulations this week go to Michelle Shinn and Deborah Dowd, who were the first to correctly identify the location for July 18. Honorable mentions go to Samika Hawkins, Tom Powers and Dick Owen. Check out the Tracking Thomas webpage for a better view of his last location and this week's new mystery photo.