Jefferson Lab Weekly Briefs September 30, 2009
Jefferson Lab Weekly Briefs
September 30, 2009
12 GeV Upgrade
Civil construction for the 12 GeV Upgrade continues to progress. On the Central Helium Liquefier (CHL) Building Addition, the structural steel work is complete and roofing started this week. The fire sprinkler piping and the concrete masonry (CMU) wall adjacent to the existing building have been installed. The CMU wall provides an acoustical barrier from the CHL #2 compressors to the adjacent building. On the Hall D Complex, the Hall D excavation is complete and the mud slab has been placed. The mud slab is a thin layer of concrete under the waterproofing for the concrete floor slab. The contractor is also continuing to install the utility distribution systems: water, electric and communications.
APS April Meeting Abstract Submission Deadline is Oct. 23
AIP State Deaprtment Fellowship Application Deadline is Nov. 1
The accelerator had been running well with low trip rates. Hall A line orbits were optimized, which eliminated the ep ion chamber trips. On Friday, the Hall C beam dump cooling water pump developed a leak. The water leak had worsened Saturday, and the leaking pump was turned off. The secondary pump (with limited cooling capacity) was turned on. A plan is already in place to fix the leaking pump.
George Neil and Gwyn Williams are both giving talks at the Synchrotron Radiation Instrumentation Workshop in Australia this week. George also presented a talk at the International Conference on Infrared, Millimeter, and Terahertz Waves last week in South Korea. Good progress is being made in final checkout of the ultraviolet beamline before beam transport. A problem with the machine protection fast-shutdown system was discovered last week; a solution that greatly improves the robustness of the system was proposed and reviewed externally and is being implemented. Machine setups appropriate for UV operations are being tested.
JLab's Safety Numbers
77 Days since Last Recordable Accident (JLab record: 331)
JLab Calendar of Events
Oct. 6: American Red Cross Blood Drive
Environment, Safety, Health & Quality
Wrapping up the theme of National Preparedness Month, the final step in disaster preparedness is to "Be Informed."
There are important differences among potential emergencies that will impact the decisions you make and the actions you take. Preparedness must now account for man-made disasters as well as natural ones. Find out what kinds of disasters, both natural and man-made, are most likely to occur in your area. Knowing what to do during an emergency is an important part of being prepared and may make all the difference when seconds count. In addition, learn about the emergency plans that have been established in your area by your state and local government.
More information can be found on FEMA's Ready America website.
Get Involved in Preparing your Community
SRF Colloquium Set for Oct. 1
Blood Drive set for Tuesday, Oct. 6
Last Chance to Register for Oct. 8 Golf Tourney