Jefferson Lab Weekly Briefs March 24, 2010
Jefferson Lab Weekly Briefs
March 24, 2010
12 GeV Upgrade
Civil construction has made noticeable progress over the last month. On the Central Helium Liquefier Building Addition, metal siding installation is nearly complete. CEBAF Boulevard is planned to re-open during the second week of April. On the Hall D Complex, the first lift of the Hall D concrete walls is complete, bringing them to a height of approximately 15 feet. The second lift will take the concrete walls to a height of approximately 30 feet. On top of the concrete walls will be 10 feet of structural steel frame walls to complete the full height of the walls at 40 feet. In addition to the JLab construction webcam, the Hall D progress can be viewed on the construction contractor’s webcam.
On Friday, the installation of the PREX experiment E06-002, measuring the neutron radius in 208Pb to 1 percent, was finally completed in Hall A. During the weekend, the commissioning activities were successfully initiated.
Nuclear Science and Engineering Scholarships and Fellowships
The accelerator has been running well, with a very low radiofrequency trip rate. Operations personnel delivered beam to Hall B last week. A spin dance was performed to optimize the beam polarization. Over the weekend, beam was set up for Hall A with low current for commissioning of the PREX experiment.
The FEL team has cooled down the injector to 2K, and a new cryomodule has been commissioned. The team is ready to begin bringing the electron beam up again, starting this week.
This week sees the first of several introductory lectures given by Leonard Gamberg, visiting professor from Penn State University, on the transverse spin and momentum structure of hadrons. Emphasis will be placed on the emerging role of time reversal odd effects in transverse spin and momentum correlations between partons and their description in terms of novel parton distribution and fragmentation functions. The lectures will summarize the key theoretical issues and experimental results that have led us to the present understanding and outline how JLab will contribute to the development of this field in the future.
Facilities Management and Logistics
JSA Administrative Policy 301.06 Traffic & Parking Management requires that vehicles park only in designated parking spaces. Many vehicles have not been in compliance with this policy, especially along the North Connector Road. Vehicles will be ticketed for parking violations in this area beginning Monday, March 29. If you have questions, contact Mike Lewellen at x7169.
JLab's Safety Numbers
9 Days since Last Recordable Accident (JLab record: 331)
JLab Calendar of Events
March 25: Safety Shoe Vendor onsite
Environment, Safety, Health & Quality
The Occupational Safety & Health Administration notes that 5,071 workers died on the job in 2008. "With every one of these fatalities, the lives of a worker's family members were shattered and forever changed. We can't forget that fact," said Hilda Solis, Secretary of Labor.
As a visible sign of its commitment to making America's workplaces safer, OSHA keeps a running tally of worker fatalities on the front page of its website. Many of the scrolling descriptions serve as a stark reminder of the dangers of taking on a task without putting you and your fellow employees' safety first. Here at JLab, we apply the steps of the Integrated Safety Management System in the planning and execution of work. These include defining the scope of work, analyzing the hazards, developing and implementing hazard controls, performing work within controls and providing feedback and continuous improvement.
Computing and Networking Infrastructure
Windows Power Management Now in Effect
New Look for JLab Common User Environment
Recharge Wednesday at the Quark Cafe
Volunteers Needed for JLab's Open House
Last Chance to Enter T-Shirt Design Contest
Frank Wilczek to Speak at William & Mary
GEN101 Annual Standards of Conduct Training