Jefferson Lab Weekly Briefs January 9, 2013
Jefferson Lab Weekly Briefs
January 9, 2013
12 GeV Upgrade
Assembly of the ninth and tenth (of 10) C100 cryomodules continues. Acceptance testing of the sixth C100 is underway in the Test Lab. Work on the new radiofrequency zones continues. Eight of the new high-power RF circulators were received. The new cryogenics systems for Hall D are being used to cool down the solenoid magnet. The 4.5K coldbox for the Central Helium Liquefier 2 is being prepared for commissioning next month. Assembly is underway of the cryogenics transfer line that will connect CHL2 to the linacs. Re-installation of the east spreader is nearly complete; the stands for the west spreader have been installed. Field mapping of the first three-meter-long ZA septum magnet is complete, and it met the specifications; it has been readied for installation. The second ZA septum magnet has been received. All of the new vertical stands for the beam transport system have been received. All Instrumentation & Controls/Safety systems were ready on schedule for the Hall D solenoid cooldown and linac cooldown. The Personnel Safety System is ready for certification next week.
2013 Outstanding Nuclear Physicist Award Deadline Nears
APS April Meeting Abstracts Due
The Flame Challenge: All About Time
In the first, shortened week of the new year, FEL staffers continued significant engineering design efforts on the gun upgrade and work on the ring resonator test.FEL team is preparing for operations early in 2013 and has completed the bakeout of the injector in preparation for high-voltage conditioning next week. Work continued on the detailed design of the new gun with a load-lock for cathode replacement, and the first conceptual designs for a new booster were presented this week.
Center for Theoretical and Computational Physics
A major review article on nucleon resonance structure in exclusive meson electroproduction has been compiled by theorists and experimentalists from the JLab community. The article presents a detailed account of the physics that can be addressed through N* structure studies in exclusive meson electroproduction, such as those planned in Hall B at 12 GeV. The review describes recent advances in reaction theory for extracting N* electrocouplings from meson electroproduction off protons, as well as advances in QCD-based approaches to their theoretical interpretation.
The Machine Shop is presently manufacturing or continuing to manufacture:
The shop has processed 114 job requests since Nov. 12.
JLab Calendar of Events
Jan. 9: Long Shutdown Meeting & Safety Vendor Fair
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.
Long Shutdown Safety Meeting and Vendor Fair
Computing and Networking Infrastructure
CNI Maintenance Period Set for Tuesday, Jan. 15
JLab ISDN Video Conferencing Is Changing
Radiation Worker Classes Offered Soon
Onsite Blood Drive Set for Friday, Jan. 25
Reminder: General Access RWP Available for Signature
Dog-Friendly Landscaping Tips and Therapy Dog Class
Tracking Thomas at JLab
Congratulations this week go to Will Phelps, who was the first to correctly identify the location for Dec. 19. Honorable mentions go to Marcy Stutzman, Anna Shabalina, Dave Kashy and Kelly Tremblay. Check out the Tracking Thomas webpage for a better view of his last location and this week's new mystery photo.As in years' past, JLab will participate in the U.S. Marine Corps' annual Toys For Tots toy drive, beginning in late November.
Children’s Holiday Party Set for Dec. 8
Lab Scientists and Administrators Invited to Virginia STEAM Academy Colloquium
Congratulations this week go to Doug Higinbotham, Annie Tran and Samika Hawkins, who were the first to correctly identify the location for Nov. 14. Honorable mentions go to Ron Bartek, Isadoro Carlino, Narciso Gomez, Marcy Stutzman, Harry Fanning, Kelly Tremblay, Kevin Banks, Robert Martin, Elaine Zuchowicz, Michelle Shinn, Debra Brand and Dick Owen. Check out the Tracking Thomas webpage for a better view of his last location and this week's new mystery photo.