Jefferson Lab Weekly Briefs August 15, 2012
Jefferson Lab Weekly Briefs
August 15, 2012
12 GeV Upgrade
Accelerator Readiness Review
Current Hall A efforts are focused largely on 11 GeV beamline preparation. The Moller polarimeter quadrupole arrival is imminent, and power and controls are being readied for it. A solution to map the Compton polarimeter magnets in place has been determined and should begin soon, as the Compton magnet field plate extensions are finalizing.
The CEBAF cryomodules are by now essentially warm, and systematic maintenance has started in the North Linac. The R100 cryomodule, in design and performance almost the same as a C100 and the most critical element for the injector energy upgrade, has been moved to its final location, and it is ready for alignment and installation. With the spreader and recombiner areas essentially cleared out, the de-installation activities in the tunnel turned to the recombiner in the beam switchyard area. Several refurbished Arc 3 dipoles have been returned to their locations in the east arc. The re-survey of the accelerator control network in the west arc has been completed, and the focus turned this week to the east arc. The de-installation work continues in Halls A, B and C. The contractor for the installation of the new Central Helium Liquefier-1 cooling towers is on site for mobilization and preparation, with the work to start soon.
The linac is warming up, and staffers have made good progress in developing a resource-loaded schedule for the rest of the calendar year. The FEL team is also starting to map out the details of the run schedule for the first half of next year, which will include the enhanced energy-recovery scheme and the plan for a new injector booster.
The machine shop has set up and made operational the magnet re-manufacturing area. To date, the shop has re-manufactured 30 magnets for reassembly. Hall B's CLAS12 High Threshold Cerenkov Counter mold mirror facet blocks 2 and 3 are being cut to size. The 170 accelerator dipole-lengthening shims for 12 GeV are being final machined to coincide with the modification of the cores, and 30 strip line beam position monitors are in the process of being welded. The shop has processed 173 job requests since June 25.
Facilities Management and Logistics
Electronic Forms Now Available for Property Storage Requests
JLab Calendar of Events
Aug. 20: Safety Shoe vendor onsite
Environment, Safety, Health and Quality
Trikes are Back – Be Alert
Computing and Networking Infrastructure
Network Maintenance Set for Saturday
CNI Systems Maintenance Scheduled for Aug. 21, 5-7 p.m.
Additionally, Windows and Linux security patches will be pushed out to all desktop systems. Plan on rebooting your desktop system when you have the opportunity in the day or two following this maintenance period. If you have any questions or concerns, contact the IT Division Helpdesk, x7155.
Zimbra Calendar Testing
Zimbra Training Offered in August
New Montage Now Available
FedEx Shipping Notice
Last Chance to Make Your Voice Be Heard!
Think Globally, Volunteer Locally for United Way Day of Caring
If you wish to volunteer, fill out the online form by Aug. 17. When filling out the form, under "Select Desired Project Jurisdiction," enter "Newport News"; and in the field "Enter a Specific Project from the Day of Caring Project List," enter: USO of Hampton Roads & Central Virginia, 62 Walnut Ave. Bldg 247, Langley AFB. This ensures that all JLab employees will be participating in the same event. In addition, both you and your supervisor must send an email to Joshua Cameron confirming that you will be volunteering to attend the Day of Caring on this date.
Onsite Blood Drive Next Tuesday, Aug. 21
Department of Energy Food Drive Ends Thursday
Operational Safety Procedure Process Goes Electronic on Sept. 15
Studying the Quark-Gluon Plasma - Colloquium and Public Lecture
Tracking Thomas at JLab
Congratulations this week go to Jason Willoughby, who was the first to correctly identify the location for Aug. 8. Honorable mentions go to Michael Haddox-Schatz, Debbie Campbell and Harry Fanning. Check out the Tracking Thomas webpage for a better view of his last location and this week's new mystery photo.