Jefferson Lab Weekly Briefs March 5, 2008
Jefferson Lab Weekly Briefs
March 5, 2008
12 GeV Upgrade
Design effort on the conventional facilities to support the 12 GeV CEBAF Upgrade continues to progress. On Feb. 1, the Architect-Engineer firm, HSMM (Hayes, Seay, Mattern & Mattern) submitted design documents for the Hall D conventional facilities that incorporated review comments from the internal design and safety review held in November 2007. JLab Facilities Management personnel have reviewed these documents and validated the design is complete and ready for procurement. The signed final design documents are to be submitted in early March.
Also, a detailed construction schedule for the Hall D conventional facilities was completed by a local construction management firm. The purpose of this detailed schedule was a crosscheck on the construction phase durations and the “ready for equipment” installation dates in the 12 GeV CEBAF Upgrade baseline schedule.
All three Experimental Halls are in an installation phase.
The Scheduled Accelerator Down period continued. Maintenance items of interest are listed below.
Free-Electron Laser (FEL)
FEL staffers are making great progress on both guns. The drive laser has been aligned and the beam diagnostics have been set up properly on the Gun Test Stand. This means the first cathode can be activated there, beginning this week. The FEL gun is also making great progress in high-voltage processing and has now exceeded its previous operating voltage. The system will be driven up to 400 kV before success is declared. A test of an upgraded magnet power supply card was successful in demonstrating its hysteresis programming, so staff can now move ahead with production and installation of those systems.
JLab's Safety Numbers
168 Days since Last Recordable Accident (JLab record: 319)
JLab Calendar of Events
March 5: JLab Physics Colloquium: Albrecht Karle, University of Wisconsin
Environment, Safety, Health & Quality
A tragic local fire last week, attributed to a clothes dryer, resulted in three deaths. The U. S. Consumer Product Safety Commission provides the following home clothes dryer safety tips:
Degraded Electrical Extension Cord "Lesson Learned"
Computing and Networking Infrastructure
CNI Systems Maintenance next week
Microsoft Office 2007/2008 Compatibility Information
Radworker General Access RWP
Nano Particle Safety Brown Bag Lunch
JLab Colloquium and Public Lecture