Jefferson Lab Weekly Briefs
July 3, 2013
Several staff participated in and officiated at the 17th Pan-American Synchrotron Radiation Instrumentation Conference and workshops hosted by the National Institute of Standards and Technology in Gaithersburg, MD. The meeting was co-chaired by NIST, Cornell University and Jefferson Lab. The meeting has been a focus of activity, particularly for the past two months. Jefferson Lab contributed a talk and two posters for this major meeting in the accelerator-based photon science field.
Also, one of the FEL's student interns, Anne Watson, received a pledge of travel support from the organizers of the 35th International Free-Electron Laser Conference, FEL 2013.
Center for Theoretical and Computational Physics
A review article summarizes the current status of spin-averaged and spin-dependent parton distribution functions (PDFs) of the nucleon. Representative examples of unpolarized and polarized PDFs and their errors are given, as well as a list of open questions in global QCD fitting. The paper also discusses how future facilities, including collider and fixed-target experiments (such as those planned at Jefferson Lab at 12 GeV), may impact our knowledge of PDFs and reduce their uncertainties.
Facilities Management and Logistics
The first floor of the North Pedestrian Walkway between the Technology and Engineering Development building and the Test Lab building will be closed on Friday, July 5, for tile repair. To navigate between the buildings, individuals must use the Test Lab North Stair entrance and the 2nd floor North Pedestrian Walkway. If you have questions about this work, contact Rebecca Yasky at x7507.
JLab Calendar of Events
July 4: Independence Day holiday, Jefferson Lab closed
Environment, Safety, Health and Quality
Resolving ES&H Concerns
Once your concern has been addressed, communicate any lessons learned to your staff, co-workers, supervisors and your Division Lessons Learned Coordinator. ES&H Manual Chapter 2310 offers more information on concern resolution.
Computing and Networking Infrastructure
Site-Wide Network Outage Set for Saturday, July 20
Monthly Tornado Siren Test Set for Friday
Personal Dosimeter Change Out Set for Monday, July 8
Revised General Access Radiological Worker Permit
The GARWP is titled SAF801kd, and the change is located in the middle of page 3, item #9. A revision date of June 25, 2013, should be shown in the upper left hand corner of this document. Make sure you refresh your browser once you have opened this document, to make sure you have the newest version. You can locate the document on the web-based training page. If you have questions or concerns, contact Becky Mosbrucker, x7236, or the RadCon Technician cell phone, 876-1743.
Tracking Thomas at Jefferson Lab
Robert Martin and David Anderson correctly guessed the location for June 26. Honorable mentions go to Scott Thompson, Sam Holben, Ron Bartek and Dick Owen. Check out Tracking Thomas on flickr for a better view of his last location and this week's new mystery photo.
|JLab Weekly Briefs is an ongoing publication providing information on the status of safety, accelerator operations, experiments, free-electron laser, reviews, upcoming activities and special events. Deadline for submission is every Tuesday by 10 a.m. Submit new items to: Public Affairs or contact Kandice Carter at x7263.|