Jefferson Lab Weekly Briefs September 29, 2010
Jefferson Lab Weekly Briefs
September 29, 2010
AIP State Department Fellowship Application Deadline is Nov. 1
The summer Scheduled Accelerator Down ended on Sept. 27 and operations personnel started to deliver continuous wave beam to Hall B. The hall reported that the beam quality was good. Neither Hall A or Hall C is ready for beam. Injector gun2 is operating at 130 kilovolts. The restoration of beam after the SAD went well.
Operational characterization of the ultraviolet FEL continued last week, with a number of gain and power measurements. The team was able to produce over 1 kilowatt in macropulse operation and measured small signal gains exceeding 100 percent. The team also took electron beam performance data from the injector with low emittance being achieved for the 60 picocoulomb performance of the UV setup.
Center for Theoretical and Computational Physics
To describe deep-inelastic scattering at small values of Bjorken-x (where x is the momentum fraction carried by partons in the nucleon) at next-to-leading order (NLO) accuracy requires both the Pomeron intercept and the impact factor, or the amplitude of production of the Pomeron by the virtual photon at NLO. While the Pomeron intercept was calculated more than 10 years ago, the analytic expression for the impact factor has just been computed in a new paper by Theory Center staff <arXiv:1009.4729>. This result will be important for understanding data in high-energy experiments, such as those planned for a future Electron-Ion Collider.
Facilities Management and Logistics
New Accelerator Site Entrance Opens this Saturday
JLab Calendar of Events
Oct. 5: Safety Shoe Vendor onsite
JLab's Safety Numbers
30 Days since Last Recordable Accident (JLab record: 331)
Computing and Networking Infrastructure
CNI Group Begins Managing Mac Systems
United Way Campaign at JLab Kicks Off With Oct. 7 Picnic and Raffle
A United Way fund-raising raffle for two 16 gigabyte iPads also will begin during lunch on Oct. 7. Raffle tickets will be $1 each and may be purchased at a table in the CEBAF Center lobby, 12-1 p.m., on workdays through Oct. 27. A winning ticket for each iPad will be drawn during the Jefferson Activities Group's Oktoberfest on Wednesday, Oct. 27. Winners need not be present to win and will have until Monday, Nov. 1 to claim their iPads.
All money collected through the picnic and raffle will go to the United Way to support community services.
American Red Cross Blood Drive
JLab's BEAMS Outreach Program Needs Your Help
Einstein For Everyone Kicks Off Fall Science Series Lecture Series
Flu Vaccines Now Available