Jefferson Lab Weekly Briefs
March 31, 2010

12 GeV Upgrade

The construction phase of the 12 GeV Upgrade places demands on shared resources throughout the lab, such as assembly and storage space, as well as shared support services, such as RadCon and survey/alignment. Coordination and integration efforts continue to help lab personnel understand the resource constraints and plan for optimized solutions, including identifying possible efficiencies through purchases of common instrumentation racks and electrical equipment. Coordinated planning is underway for the upcoming summer 2010 scheduled accelerator shutdown, which will include these 12 GeV installation tasks: the remaining west arc low-conductivity water supply and return lines, Arc 10 stands, four cryomodule baseplates, radiofrequency waveguide hangers and cables.

Physics

Nuclear Science and Engineering Scholarships and Fellowships
DOE is offering scholarships and fellowships as part of its efforts to recruit and train the next generation of nuclear scientists and engineers. The Nuclear Energy University Programs (NEUP) will provide approximately $5 million for scholarships and fellowships for students enrolled in two-year, four-year and graduate engineering and science programs related to nuclear energy. Undergraduate scholarships will average $5,000 per year, and the maximum award for fellowships will be $50,000 per year. Applications are due by April 26. DOE anticipates notifying students by June 2010 of its selections with awards planned for July 2010.

Accelerator

Beam was running well during the week. Continuous wave 100μA beam was established to the Hall A beam dump. There were about three shifts of downtime during the weekend. During late swing shift on Friday, the beam became unstable, starting from the injector chicane. On Saturday, it was found that Injector Chicane Dipole MDK0R02 had a ground fault, which was caused by water dripping into the magnet assembly. After the problem was corrected, there was an electrical problem with Rack SL19B09. Beam delivery was resumed late Saturday. On Sunday, Beamline Vacuum Valve VBV2L08A would not open; the problem was corrected by replacing the indicator switch.

Free-Electron Laser

The FEL team ran first beam out of the injector this week, and team members are troubleshooting diagnostics and beam transport.

Theory Center

In the factorized picture of semi-inclusive deep inelastic scattering of hadrons, transverse single spin asymmetries are described by the naive time-reversal odd parton distribution functions when the transverse momentum of the measured hadrons are at the scale of intrinsic quark momenta, kT ≈ ΛQCD. It has been suggested that the QCD reaction mechanism is described by final state interactions of the active parton with the remaining jets. In arXiv:0911.1964 [hep-ph], an improved treatment of final state interactions is presented by including color degrees of freedom in a calculation of these dynamical effects.

Facilities Management and Logistics

The Technology and Engineering Development Facility (TEDF) received approval from DOE on March 26 to start site-work construction on the project. FM&L staffers expect to see some construction activity start in mid-April. Site work includes relocation of utilities, construction of a new accelerator site gatehouse and construction of a process support building that will replace the current acid neutralization building. It is anticipated that parking in front of the Test Lab and Onnes Road between Lawrence Drive and SURA Road will be closed starting in mid-May. Building construction is anticipated to start in July.

JLab's Safety Numbers

15 Days since Last Recordable Accident (JLab record: 331)
15 Days since Last Lost Workday Accident (JLab record: 676)

JLab Calendar of Events

April 14-15: AVS Mid-Atlantic chapter meeting and short course
April 21: JLab Teachers Science Night
April 29: Safety Shoe Vendor onsite
May 1: Jefferson Lab Open House

 

 

 

Environment, Safety, Health & Quality

DIY Dangers
As the weather improves, many of us often begin thinking about that project that got put off last spring. Perhaps you've seen a TV program that makes you confident and you think, "I can do that!" The truth is: Not everyone can do it themselves, despite the television shows, books and Internet sites that make us think otherwise. And those who can't often end up spending a lot of money to get their projects fixed by a professional.

If you are a Do-It-Yourselfer, remember that you should never start a job until you are 100 percent sure you have everything you need and have done your homework on what can go wrong. Apply JLab work principles: Think through home projects carefully, determine if you have the tools and skills to use them, address the hazards with the appropriate training and personal protective equipment, and stop the project and call in a subject matter expert if you get to a point where you are beyond your expertise. When you think about the cost/benefit of DIY, consider the rework cost, aggravation and potential for a serious injury.

Computing and Networking Infrastructure

Windows 7 at JLab
The IT Division will begin support for Windows 7 on April 5. Any new machine ordered should now be ordered with Windows 7 Professional. Once your new system arrives, inform IT via the CCPR system, so that staff members may assist you with configuring it correctly for the JLab Common User Environment.

After April 5, IT staff will be glad to assist users in reformatting any existing Windows systems to Windows 7. Visit the Windows 7 webpage to determine whether your current machine will support Windows 7 under the JLab CUE. If you would like your system to run Windows 7, submit a CCPR requesting the new build, and staffers will be happy to assist you.

Windows Power Management at JLab
The CNI group has found some issues with the recent rollout of power management on Windows systems at JLab. Be aware that the group is working with the vendor to correct these issues. If you are experiencing issues with waking your system from sleep, e-mail or call the IT Helpdesk at x7155. In order to minimize disruptions for those who are using their Windows systems over the weekend, the CNI group has modified the sleep schedule. For the new schedule, see the webpage.

Announcements

Voting is Open for JLab's 2010 T-Shirt Design
Vote now to help select the design for Jefferson Lab's 2010 T-shirt. The winning design will be unveiled at the lab's annual Run-A-Round, which is scheduled for May 12. All JLab computer account holders are permitted one vote per account holder. Voting is open through April 9. To view the designs and cast your vote, go to the JAG website.

Interested in Golf?
Come out and join the Jefferson Lab Golf League. The league will start play April 5 and play will continue through September. Team members play Monday evenings at Newport News Golf Club, starting at around 4:30 p.m. No experience is necessary. If you are interested and would like more information, ask one of the people already in the Golf League or call Danny Machie, x7501. Check out additional details and see who is already in the Golf League at the Golf League webpage.

Lecture on Light at Old Dominion University
Sir Michael Berry, a popular speaker about mathematics and physics, will deliver a public lecture at Old Dominion University on Monday, April 12. Berry's presentation, "Making Light of Mathematics," will begin at 7 p.m. in the E.V. Williams Engineering and Computational Sciences Building's first floor auditorium. There is no charge for the lecture.

Volunteers Needed for JLab's Open House
Volunteers are needed to serve as bus stop attendants, bus monitors, greeters and walking path monitors. A web signup is available for volunteers helping with logistics. If you want to help with tours or related activities in your work area, contact the responsible supervisor. For more information about volunteering, contact Tina Menefee. For information about the event, visit the Open House webpage.

TIAA-CREF Counseling Sessions
TIAA-CREF will offer individual counseling sessions onsite on May 20-21. In these sessions, employees can discuss their personal financial situation with a TIAA-CREF consultant on a confidential basis. To discuss your plan and options for managing your retirement savings or to schedule an appointment with a TIAA-CREF Individual Consultant, call TIAA-CREF at (800) 732-8353, M-F, from 9 a.m.-8 p.m.

Free Seminar on Vacuum
Varian, Inc., will conduct a free seminar titled "Fundamentals of Ultra-High Vacuum," on April 28, 9 a.m.-3 p.m. in ARC 231-3. To register, e-mail DeLisa Stanfield.